./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/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_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/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_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/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 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 --- 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 12:30:08,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:30:08,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:30:08,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:30:08,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:30:08,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:30:08,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:30:08,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:30:08,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:30:08,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:30:08,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:30:08,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:30:08,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:30:08,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:30:08,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:30:08,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:30:08,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:30:08,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:30:08,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:30:08,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:30:09,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:30:09,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:30:09,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:30:09,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:30:09,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:30:09,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:30:09,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:30:09,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:30:09,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:30:09,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:30:09,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:30:09,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:30:09,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:30:09,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:30:09,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:30:09,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:30:09,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:30:09,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:30:09,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:30:09,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:30:09,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:30:09,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 12:30:09,034 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:30:09,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:30:09,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:30:09,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:30:09,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:30:09,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:30:09,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:30:09,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:30:09,036 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:30:09,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:30:09,037 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:30:09,037 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:30:09,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:30:09,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:30:09,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:30:09,038 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 12:30:09,038 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 12:30:09,038 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 12:30:09,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:30:09,038 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:30:09,039 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:30:09,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:30:09,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:30:09,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:30:09,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:30:09,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:30:09,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:30:09,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:30:09,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:30:09,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:30:09,040 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:30:09,041 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:30:09,041 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:30:09,041 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:30:09,041 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_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 [2022-12-13 12:30:09,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:30:09,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:30:09,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:30:09,233 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:30:09,234 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:30:09,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 12:30:11,902 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:30:12,104 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:30:12,105 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 12:30:12,117 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/bin/uautomizer-uyxdKDjOR8/data/a4a29f735/77ad1fc6497e49cd9527fcf3ce1a9e13/FLAG344d065dc [2022-12-13 12:30:12,131 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/bin/uautomizer-uyxdKDjOR8/data/a4a29f735/77ad1fc6497e49cd9527fcf3ce1a9e13 [2022-12-13 12:30:12,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:30:12,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:30:12,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:30:12,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:30:12,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:30:12,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:30:12" (1/1) ... [2022-12-13 12:30:12,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30118198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:30:12, skipping insertion in model container [2022-12-13 12:30:12,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:30:12" (1/1) ... [2022-12-13 12:30:12,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:30:12,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:30:12,325 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_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-13 12:30:12,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,484 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,501 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:30:12,511 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:30:12,521 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_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-13 12:30:12,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:30:12,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:30:12,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:30:12,586 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:30:12,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:30:12 WrapperNode [2022-12-13 12:30:12,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:30:12,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:30:12,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:30:12,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:30:12,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:30:12" (1/1) ... [2022-12-13 12:30:12,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:30:12" (1/1) ... [2022-12-13 12:30:12,627 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2022-12-13 12:30:12,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:30:12,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:30:12,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:30:12,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:30:12,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:30:12" (1/1) ... [2022-12-13 12:30:12,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:30:12" (1/1) ... [2022-12-13 12:30:12,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:30:12" (1/1) ... [2022-12-13 12:30:12,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:30:12" (1/1) ... [2022-12-13 12:30:12,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:30:12" (1/1) ... [2022-12-13 12:30:12,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:30:12" (1/1) ... [2022-12-13 12:30:12,649 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:30:12" (1/1) ... [2022-12-13 12:30:12,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:30:12" (1/1) ... [2022-12-13 12:30:12,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:30:12,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:30:12,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:30:12,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:30:12,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:30:12" (1/1) ... [2022-12-13 12:30:12,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:30:12,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:30:12,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:30:12,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:30:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:30:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 12:30:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:30:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:30:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:30:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 12:30:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 12:30:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 12:30:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 12:30:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 12:30:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 12:30:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 12:30:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 12:30:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:30:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 12:30:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:30:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:30:12,719 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 12:30:12,830 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:30:12,833 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:30:12,995 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:30:13,001 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:30:13,001 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:30:13,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:30:13 BoogieIcfgContainer [2022-12-13 12:30:13,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:30:13,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:30:13,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:30:13,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:30:13,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:30:12" (1/3) ... [2022-12-13 12:30:13,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6c16c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:30:13, skipping insertion in model container [2022-12-13 12:30:13,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:30:12" (2/3) ... [2022-12-13 12:30:13,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6c16c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:30:13, skipping insertion in model container [2022-12-13 12:30:13,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:30:13" (3/3) ... [2022-12-13 12:30:13,011 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 12:30:13,029 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:30:13,030 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-12-13 12:30:13,030 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:30:13,090 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:30:13,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 119 transitions, 258 flow [2022-12-13 12:30:13,157 INFO L130 PetriNetUnfolder]: 2/115 cut-off events. [2022-12-13 12:30:13,157 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:30:13,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 115 events. 2/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2022-12-13 12:30:13,161 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 119 transitions, 258 flow [2022-12-13 12:30:13,164 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 110 transitions, 232 flow [2022-12-13 12:30:13,167 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:30:13,174 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 110 transitions, 232 flow [2022-12-13 12:30:13,176 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 110 transitions, 232 flow [2022-12-13 12:30:13,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 110 transitions, 232 flow [2022-12-13 12:30:13,207 INFO L130 PetriNetUnfolder]: 2/110 cut-off events. [2022-12-13 12:30:13,208 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:30:13,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2022-12-13 12:30:13,211 INFO L119 LiptonReduction]: Number of co-enabled transitions 2382 [2022-12-13 12:30:15,423 INFO L134 LiptonReduction]: Checked pairs total: 4177 [2022-12-13 12:30:15,424 INFO L136 LiptonReduction]: Total number of compositions: 112 [2022-12-13 12:30:15,438 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:30:15,444 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;@e66379e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:30:15,445 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-12-13 12:30:15,446 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 12:30:15,446 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:30:15,446 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:15,446 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 12:30:15,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:15,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:15,451 INFO L85 PathProgramCache]: Analyzing trace with hash 413, now seen corresponding path program 1 times [2022-12-13 12:30:15,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:15,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378115746] [2022-12-13 12:30:15,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:15,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:15,535 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 12:30:15,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:15,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378115746] [2022-12-13 12:30:15,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378115746] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:15,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:15,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 12:30:15,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946481184] [2022-12-13 12:30:15,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:15,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:30:15,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:15,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:30:15,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:30:15,560 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 231 [2022-12-13 12:30:15,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 31 transitions, 74 flow. Second operand has 2 states, 2 states have (on average 112.5) internal successors, (225), 2 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:15,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:15,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 231 [2022-12-13 12:30:15,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:15,715 INFO L130 PetriNetUnfolder]: 1136/1631 cut-off events. [2022-12-13 12:30:15,715 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 12:30:15,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3337 conditions, 1631 events. 1136/1631 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 7045 event pairs, 1136 based on Foata normal form. 0/1540 useless extension candidates. Maximal degree in co-relation 3325. Up to 1621 conditions per place. [2022-12-13 12:30:15,724 INFO L137 encePairwiseOnDemand]: 222/231 looper letters, 20 selfloop transitions, 0 changer transitions 0/22 dead transitions. [2022-12-13 12:30:15,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 22 transitions, 96 flow [2022-12-13 12:30:15,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:30:15,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:30:15,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 253 transitions. [2022-12-13 12:30:15,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5476190476190477 [2022-12-13 12:30:15,734 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 253 transitions. [2022-12-13 12:30:15,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 253 transitions. [2022-12-13 12:30:15,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:15,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 253 transitions. [2022-12-13 12:30:15,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 126.5) internal successors, (253), 2 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:15,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 231.0) internal successors, (693), 3 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:15,742 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 231.0) internal successors, (693), 3 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:15,744 INFO L175 Difference]: Start difference. First operand has 43 places, 31 transitions, 74 flow. Second operand 2 states and 253 transitions. [2022-12-13 12:30:15,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 22 transitions, 96 flow [2022-12-13 12:30:15,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 22 transitions, 92 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 12:30:15,747 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 52 flow [2022-12-13 12:30:15,749 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=52, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2022-12-13 12:30:15,751 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -11 predicate places. [2022-12-13 12:30:15,751 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 52 flow [2022-12-13 12:30:15,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 112.5) internal successors, (225), 2 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:15,752 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:15,752 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:15,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:30:15,752 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:15,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:15,753 INFO L85 PathProgramCache]: Analyzing trace with hash 119064247, now seen corresponding path program 1 times [2022-12-13 12:30:15,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:15,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922354843] [2022-12-13 12:30:15,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:15,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:16,342 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 12:30:16,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:16,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922354843] [2022-12-13 12:30:16,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922354843] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:16,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:16,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:30:16,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705083995] [2022-12-13 12:30:16,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:16,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:30:16,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:16,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:30:16,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:30:16,716 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 231 [2022-12-13 12:30:16,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 52 flow. Second operand has 7 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:16,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:16,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 231 [2022-12-13 12:30:16,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:17,008 INFO L130 PetriNetUnfolder]: 1574/2396 cut-off events. [2022-12-13 12:30:17,008 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:30:17,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4780 conditions, 2396 events. 1574/2396 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 12677 event pairs, 546 based on Foata normal form. 0/2336 useless extension candidates. Maximal degree in co-relation 4777. Up to 1043 conditions per place. [2022-12-13 12:30:17,019 INFO L137 encePairwiseOnDemand]: 225/231 looper letters, 47 selfloop transitions, 8 changer transitions 0/57 dead transitions. [2022-12-13 12:30:17,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 57 transitions, 240 flow [2022-12-13 12:30:17,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:30:17,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:30:17,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 715 transitions. [2022-12-13 12:30:17,022 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4421768707482993 [2022-12-13 12:30:17,022 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 715 transitions. [2022-12-13 12:30:17,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 715 transitions. [2022-12-13 12:30:17,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:17,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 715 transitions. [2022-12-13 12:30:17,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 102.14285714285714) internal successors, (715), 7 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:17,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 231.0) internal successors, (1848), 8 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:17,028 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 231.0) internal successors, (1848), 8 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:17,028 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 52 flow. Second operand 7 states and 715 transitions. [2022-12-13 12:30:17,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 57 transitions, 240 flow [2022-12-13 12:30:17,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 57 transitions, 240 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:30:17,029 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 102 flow [2022-12-13 12:30:17,029 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=102, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2022-12-13 12:30:17,030 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2022-12-13 12:30:17,030 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 102 flow [2022-12-13 12:30:17,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:17,031 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:17,031 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:17,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:30:17,031 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:17,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:17,031 INFO L85 PathProgramCache]: Analyzing trace with hash 119064198, now seen corresponding path program 1 times [2022-12-13 12:30:17,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:17,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147622840] [2022-12-13 12:30:17,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:17,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:17,181 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 12:30:17,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:17,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147622840] [2022-12-13 12:30:17,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147622840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:17,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:17,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:30:17,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629084438] [2022-12-13 12:30:17,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:17,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:30:17,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:17,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:30:17,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:30:17,193 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 231 [2022-12-13 12:30:17,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:17,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:17,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 231 [2022-12-13 12:30:17,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:17,464 INFO L130 PetriNetUnfolder]: 1655/2612 cut-off events. [2022-12-13 12:30:17,465 INFO L131 PetriNetUnfolder]: For 598/598 co-relation queries the response was YES. [2022-12-13 12:30:17,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5683 conditions, 2612 events. 1655/2612 cut-off events. For 598/598 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 14950 event pairs, 289 based on Foata normal form. 135/2746 useless extension candidates. Maximal degree in co-relation 5674. Up to 1515 conditions per place. [2022-12-13 12:30:17,474 INFO L137 encePairwiseOnDemand]: 227/231 looper letters, 48 selfloop transitions, 4 changer transitions 2/56 dead transitions. [2022-12-13 12:30:17,475 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 56 transitions, 297 flow [2022-12-13 12:30:17,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:30:17,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:30:17,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 593 transitions. [2022-12-13 12:30:17,476 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5134199134199134 [2022-12-13 12:30:17,476 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 593 transitions. [2022-12-13 12:30:17,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 593 transitions. [2022-12-13 12:30:17,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:17,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 593 transitions. [2022-12-13 12:30:17,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:17,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 231.0) internal successors, (1386), 6 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:17,480 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 231.0) internal successors, (1386), 6 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:17,480 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 102 flow. Second operand 5 states and 593 transitions. [2022-12-13 12:30:17,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 56 transitions, 297 flow [2022-12-13 12:30:17,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 56 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:30:17,482 INFO L231 Difference]: Finished difference. Result has 49 places, 30 transitions, 122 flow [2022-12-13 12:30:17,483 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=122, PETRI_PLACES=49, PETRI_TRANSITIONS=30} [2022-12-13 12:30:17,483 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 6 predicate places. [2022-12-13 12:30:17,483 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 30 transitions, 122 flow [2022-12-13 12:30:17,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:17,483 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:17,484 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:17,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:30:17,484 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:17,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:17,484 INFO L85 PathProgramCache]: Analyzing trace with hash -324972773, now seen corresponding path program 1 times [2022-12-13 12:30:17,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:17,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266394562] [2022-12-13 12:30:17,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:17,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:17,846 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 12:30:17,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:17,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266394562] [2022-12-13 12:30:17,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266394562] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:17,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:17,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:30:17,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235525567] [2022-12-13 12:30:17,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:17,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:30:17,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:17,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:30:17,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:30:18,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 231 [2022-12-13 12:30:18,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 30 transitions, 122 flow. Second operand has 7 states, 7 states have (on average 95.71428571428571) internal successors, (670), 7 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:18,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:18,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 231 [2022-12-13 12:30:18,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:18,524 INFO L130 PetriNetUnfolder]: 2359/3646 cut-off events. [2022-12-13 12:30:18,524 INFO L131 PetriNetUnfolder]: For 1330/1330 co-relation queries the response was YES. [2022-12-13 12:30:18,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8800 conditions, 3646 events. 2359/3646 cut-off events. For 1330/1330 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 21910 event pairs, 771 based on Foata normal form. 90/3732 useless extension candidates. Maximal degree in co-relation 8788. Up to 1598 conditions per place. [2022-12-13 12:30:18,548 INFO L137 encePairwiseOnDemand]: 225/231 looper letters, 47 selfloop transitions, 9 changer transitions 2/60 dead transitions. [2022-12-13 12:30:18,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 60 transitions, 327 flow [2022-12-13 12:30:18,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:30:18,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:30:18,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 712 transitions. [2022-12-13 12:30:18,552 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44032158317872605 [2022-12-13 12:30:18,552 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 712 transitions. [2022-12-13 12:30:18,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 712 transitions. [2022-12-13 12:30:18,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:18,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 712 transitions. [2022-12-13 12:30:18,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 101.71428571428571) internal successors, (712), 7 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:18,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 231.0) internal successors, (1848), 8 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:18,556 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 231.0) internal successors, (1848), 8 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:18,556 INFO L175 Difference]: Start difference. First operand has 49 places, 30 transitions, 122 flow. Second operand 7 states and 712 transitions. [2022-12-13 12:30:18,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 60 transitions, 327 flow [2022-12-13 12:30:18,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 60 transitions, 324 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:30:18,565 INFO L231 Difference]: Finished difference. Result has 57 places, 31 transitions, 157 flow [2022-12-13 12:30:18,565 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=157, PETRI_PLACES=57, PETRI_TRANSITIONS=31} [2022-12-13 12:30:18,566 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2022-12-13 12:30:18,566 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 31 transitions, 157 flow [2022-12-13 12:30:18,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.71428571428571) internal successors, (670), 7 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:18,566 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:18,567 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:18,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:30:18,567 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:18,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:18,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1865672215, now seen corresponding path program 1 times [2022-12-13 12:30:18,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:18,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044345978] [2022-12-13 12:30:18,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:18,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:18,657 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 12:30:18,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:18,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044345978] [2022-12-13 12:30:18,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044345978] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:18,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:18,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:30:18,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828957121] [2022-12-13 12:30:18,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:18,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:30:18,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:18,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:30:18,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:30:18,685 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 231 [2022-12-13 12:30:18,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 31 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:18,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:18,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 231 [2022-12-13 12:30:18,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:19,351 INFO L130 PetriNetUnfolder]: 6330/9020 cut-off events. [2022-12-13 12:30:19,352 INFO L131 PetriNetUnfolder]: For 5453/5453 co-relation queries the response was YES. [2022-12-13 12:30:19,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21701 conditions, 9020 events. 6330/9020 cut-off events. For 5453/5453 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 48623 event pairs, 918 based on Foata normal form. 441/9461 useless extension candidates. Maximal degree in co-relation 21686. Up to 5017 conditions per place. [2022-12-13 12:30:19,410 INFO L137 encePairwiseOnDemand]: 223/231 looper letters, 91 selfloop transitions, 26 changer transitions 4/121 dead transitions. [2022-12-13 12:30:19,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 121 transitions, 768 flow [2022-12-13 12:30:19,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 12:30:19,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 12:30:19,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1015 transitions. [2022-12-13 12:30:19,413 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4882154882154882 [2022-12-13 12:30:19,414 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1015 transitions. [2022-12-13 12:30:19,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1015 transitions. [2022-12-13 12:30:19,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:19,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1015 transitions. [2022-12-13 12:30:19,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 112.77777777777777) internal successors, (1015), 9 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:19,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 231.0) internal successors, (2310), 10 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:19,421 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 231.0) internal successors, (2310), 10 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:19,421 INFO L175 Difference]: Start difference. First operand has 57 places, 31 transitions, 157 flow. Second operand 9 states and 1015 transitions. [2022-12-13 12:30:19,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 121 transitions, 768 flow [2022-12-13 12:30:19,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 121 transitions, 717 flow, removed 10 selfloop flow, removed 7 redundant places. [2022-12-13 12:30:19,507 INFO L231 Difference]: Finished difference. Result has 63 places, 53 transitions, 355 flow [2022-12-13 12:30:19,507 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=355, PETRI_PLACES=63, PETRI_TRANSITIONS=53} [2022-12-13 12:30:19,508 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 20 predicate places. [2022-12-13 12:30:19,508 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 53 transitions, 355 flow [2022-12-13 12:30:19,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:19,508 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:19,509 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:19,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:30:19,509 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:19,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:19,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1507527454, now seen corresponding path program 1 times [2022-12-13 12:30:19,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:19,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908848720] [2022-12-13 12:30:19,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:19,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:20,007 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 12:30:20,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:20,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908848720] [2022-12-13 12:30:20,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908848720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:20,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:20,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:30:20,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705809133] [2022-12-13 12:30:20,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:20,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 12:30:20,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:20,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 12:30:20,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:30:20,265 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 231 [2022-12-13 12:30:20,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 53 transitions, 355 flow. Second operand has 8 states, 8 states have (on average 91.625) internal successors, (733), 8 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:20,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:20,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 231 [2022-12-13 12:30:20,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:21,007 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([373] L801-1-->L18: Formula: (and (= (mod v_~main$tmp_guard1~0_22 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_15|) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_21| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|) (= v_~main$tmp_guard1~0_22 (ite (= (ite (not (and (= v_~__unbuffered_p2_EBX~0_20 0) (= v_~__unbuffered_p2_EAX~0_22 1) (= v_~__unbuffered_p0_EAX~0_20 1) (= v_~__unbuffered_p0_EBX~0_20 0))) 1 0) 0) 0 1)) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_21| 0))) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_20, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_20, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_20, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression#1=|v_ULTIMATE.start___VERIFIER_assert_~expression#1_25|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_20, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_20, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_20, ULTIMATE.start___VERIFIER_assert_#in~expression#1=|v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_15|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_21|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_22, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression#1, ULTIMATE.start___VERIFIER_assert_#in~expression#1, ULTIMATE.start_assume_abort_if_not_~cond#1, ~main$tmp_guard1~0][93], [30#L732true, P2Thread1of1ForFork1InUse, P1Thread1of1ForFork2InUse, 170#true, 133#true, 91#L18true, 87#P1EXITtrue, Black: 139#(and (= (store (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= ~__unbuffered_p0_EAX~0 0) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0))), Black: 140#(and (not (= ~__unbuffered_p0_EAX~0 1)) (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 0))), Black: 141#(and (not (= ~__unbuffered_p0_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 138#(and (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (= ~__unbuffered_p0_EAX~0 0) (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0))), 165#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 151#(= ~__unbuffered_p2_EAX~0 0), 142#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 163#(and (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 0))), 116#L759true, 112#$Ultimate##0true, Black: 182#(and (= ~x~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 172#(= ~x~0 0), Black: 180#(and (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), 198#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 176#(and (= ~x~0 0) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), Black: 173#(or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1))), Black: 174#(or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)), P3Thread1of1ForFork3InUse, Black: 178#(and (= ~x~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), P0Thread1of1ForFork0InUse]) [2022-12-13 12:30:21,007 INFO L383 tUnfolder$Statistics]: this new event has 16 ancestors and is not cut-off event [2022-12-13 12:30:21,008 INFO L386 tUnfolder$Statistics]: existing Event has 16 ancestors and is not cut-off event [2022-12-13 12:30:21,008 INFO L386 tUnfolder$Statistics]: existing Event has 16 ancestors and is not cut-off event [2022-12-13 12:30:21,008 INFO L386 tUnfolder$Statistics]: existing Event has 16 ancestors and is not cut-off event [2022-12-13 12:30:21,094 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([373] L801-1-->L18: Formula: (and (= (mod v_~main$tmp_guard1~0_22 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_15|) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_21| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|) (= v_~main$tmp_guard1~0_22 (ite (= (ite (not (and (= v_~__unbuffered_p2_EBX~0_20 0) (= v_~__unbuffered_p2_EAX~0_22 1) (= v_~__unbuffered_p0_EAX~0_20 1) (= v_~__unbuffered_p0_EBX~0_20 0))) 1 0) 0) 0 1)) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_21| 0))) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_20, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_20, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_20, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression#1=|v_ULTIMATE.start___VERIFIER_assert_~expression#1_25|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_20, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_20, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_20, ULTIMATE.start___VERIFIER_assert_#in~expression#1=|v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_15|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_21|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_22, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression#1, ULTIMATE.start___VERIFIER_assert_#in~expression#1, ULTIMATE.start_assume_abort_if_not_~cond#1, ~main$tmp_guard1~0][93], [30#L732true, P2Thread1of1ForFork1InUse, P1Thread1of1ForFork2InUse, 170#true, 133#true, 91#L18true, 87#P1EXITtrue, Black: 139#(and (= (store (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= ~__unbuffered_p0_EAX~0 0) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0))), Black: 140#(and (not (= ~__unbuffered_p0_EAX~0 1)) (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 0))), Black: 141#(and (not (= ~__unbuffered_p0_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 138#(and (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (= ~__unbuffered_p0_EAX~0 0) (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0))), 165#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 151#(= ~__unbuffered_p2_EAX~0 0), 142#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 163#(and (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 0))), 116#L759true, Black: 182#(and (= ~x~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 172#(= ~x~0 0), 76#L771true, 198#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 180#(and (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), Black: 176#(and (= ~x~0 0) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), Black: 173#(or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1))), Black: 174#(or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)), P3Thread1of1ForFork3InUse, Black: 178#(and (= ~x~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), P0Thread1of1ForFork0InUse]) [2022-12-13 12:30:21,094 INFO L383 tUnfolder$Statistics]: this new event has 17 ancestors and is not cut-off event [2022-12-13 12:30:21,094 INFO L386 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2022-12-13 12:30:21,094 INFO L386 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2022-12-13 12:30:21,094 INFO L386 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2022-12-13 12:30:21,168 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([373] L801-1-->L18: Formula: (and (= (mod v_~main$tmp_guard1~0_22 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_15|) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_21| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|) (= v_~main$tmp_guard1~0_22 (ite (= (ite (not (and (= v_~__unbuffered_p2_EBX~0_20 0) (= v_~__unbuffered_p2_EAX~0_22 1) (= v_~__unbuffered_p0_EAX~0_20 1) (= v_~__unbuffered_p0_EBX~0_20 0))) 1 0) 0) 0 1)) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_21| 0))) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_20, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_20, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_20, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression#1=|v_ULTIMATE.start___VERIFIER_assert_~expression#1_25|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_20, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_20, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_20, ULTIMATE.start___VERIFIER_assert_#in~expression#1=|v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_15|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_21|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_22, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression#1, ULTIMATE.start___VERIFIER_assert_#in~expression#1, ULTIMATE.start_assume_abort_if_not_~cond#1, ~main$tmp_guard1~0][93], [30#L732true, P2Thread1of1ForFork1InUse, P1Thread1of1ForFork2InUse, 170#true, 133#true, 91#L18true, 87#P1EXITtrue, Black: 139#(and (= (store (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= ~__unbuffered_p0_EAX~0 0) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0))), Black: 140#(and (not (= ~__unbuffered_p0_EAX~0 1)) (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 0))), Black: 141#(and (not (= ~__unbuffered_p0_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 138#(and (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (= ~__unbuffered_p0_EAX~0 0) (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0))), 165#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 151#(= ~__unbuffered_p2_EAX~0 0), 142#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), 75#P3EXITtrue, Black: 163#(and (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 0))), 116#L759true, Black: 182#(and (= ~x~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 172#(= ~x~0 0), Black: 180#(and (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), 198#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 176#(and (= ~x~0 0) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), Black: 173#(or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1))), Black: 174#(or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)), P3Thread1of1ForFork3InUse, Black: 178#(and (= ~x~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), P0Thread1of1ForFork0InUse]) [2022-12-13 12:30:21,168 INFO L383 tUnfolder$Statistics]: this new event has 18 ancestors and is not cut-off event [2022-12-13 12:30:21,168 INFO L386 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2022-12-13 12:30:21,168 INFO L386 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2022-12-13 12:30:21,169 INFO L386 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2022-12-13 12:30:21,201 INFO L130 PetriNetUnfolder]: 6831/10156 cut-off events. [2022-12-13 12:30:21,201 INFO L131 PetriNetUnfolder]: For 22015/22884 co-relation queries the response was YES. [2022-12-13 12:30:21,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34441 conditions, 10156 events. 6831/10156 cut-off events. For 22015/22884 co-relation queries the response was YES. Maximal size of possible extension queue 778. Compared 64231 event pairs, 4758 based on Foata normal form. 117/9806 useless extension candidates. Maximal degree in co-relation 34422. Up to 3392 conditions per place. [2022-12-13 12:30:21,243 INFO L137 encePairwiseOnDemand]: 224/231 looper letters, 75 selfloop transitions, 19 changer transitions 12/112 dead transitions. [2022-12-13 12:30:21,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 112 transitions, 892 flow [2022-12-13 12:30:21,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 12:30:21,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 12:30:21,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 875 transitions. [2022-12-13 12:30:21,246 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4208754208754209 [2022-12-13 12:30:21,246 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 875 transitions. [2022-12-13 12:30:21,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 875 transitions. [2022-12-13 12:30:21,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:21,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 875 transitions. [2022-12-13 12:30:21,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 97.22222222222223) internal successors, (875), 9 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:21,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 231.0) internal successors, (2310), 10 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:21,249 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 231.0) internal successors, (2310), 10 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:21,249 INFO L175 Difference]: Start difference. First operand has 63 places, 53 transitions, 355 flow. Second operand 9 states and 875 transitions. [2022-12-13 12:30:21,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 112 transitions, 892 flow [2022-12-13 12:30:21,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 112 transitions, 875 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:30:21,290 INFO L231 Difference]: Finished difference. Result has 73 places, 62 transitions, 481 flow [2022-12-13 12:30:21,290 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=481, PETRI_PLACES=73, PETRI_TRANSITIONS=62} [2022-12-13 12:30:21,291 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 30 predicate places. [2022-12-13 12:30:21,291 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 62 transitions, 481 flow [2022-12-13 12:30:21,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 91.625) internal successors, (733), 8 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:21,291 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:21,291 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:21,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:30:21,291 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:21,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:21,292 INFO L85 PathProgramCache]: Analyzing trace with hash 428954059, now seen corresponding path program 1 times [2022-12-13 12:30:21,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:21,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521027615] [2022-12-13 12:30:21,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:21,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:21,359 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 12:30:21,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:21,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521027615] [2022-12-13 12:30:21,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521027615] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:21,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:21,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:30:21,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355270184] [2022-12-13 12:30:21,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:21,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:30:21,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:21,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:30:21,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:30:21,367 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 231 [2022-12-13 12:30:21,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 62 transitions, 481 flow. Second operand has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:21,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:21,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 231 [2022-12-13 12:30:21,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:21,810 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([373] L801-1-->L18: Formula: (and (= (mod v_~main$tmp_guard1~0_22 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_15|) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_21| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|) (= v_~main$tmp_guard1~0_22 (ite (= (ite (not (and (= v_~__unbuffered_p2_EBX~0_20 0) (= v_~__unbuffered_p2_EAX~0_22 1) (= v_~__unbuffered_p0_EAX~0_20 1) (= v_~__unbuffered_p0_EBX~0_20 0))) 1 0) 0) 0 1)) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_21| 0))) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_20, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_20, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_20, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression#1=|v_ULTIMATE.start___VERIFIER_assert_~expression#1_25|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_20, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_20, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_20, ULTIMATE.start___VERIFIER_assert_#in~expression#1=|v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_15|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_21|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_22, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression#1, ULTIMATE.start___VERIFIER_assert_#in~expression#1, ULTIMATE.start_assume_abort_if_not_~cond#1, ~main$tmp_guard1~0][75], [P2Thread1of1ForFork1InUse, 30#L732true, P1Thread1of1ForFork2InUse, 133#true, 91#L18true, Black: 194#(and (= ~x~0 0) (= (store (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 1) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 1)), Black: 195#(and (= ~x~0 0) (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 1) (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 1) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 1) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|))), Black: 197#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 139#(and (= (store (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= ~__unbuffered_p0_EAX~0 0) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0))), Black: 140#(and (not (= ~__unbuffered_p0_EAX~0 1)) (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 0))), Black: 141#(and (not (= ~__unbuffered_p0_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 138#(and (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (= ~__unbuffered_p0_EAX~0 0) (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0))), Black: 142#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), 165#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 151#(= ~__unbuffered_p2_EAX~0 0), 205#true, Black: 163#(and (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 0))), 116#L759true, 40#L744true, Black: 182#(and (= ~x~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), 76#L771true, Black: 172#(= ~x~0 0), 198#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 180#(and (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), Black: 176#(and (= ~x~0 0) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), Black: 173#(or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1))), P3Thread1of1ForFork3InUse, Black: 174#(or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)), Black: 178#(and (= ~x~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), P0Thread1of1ForFork0InUse]) [2022-12-13 12:30:21,810 INFO L383 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2022-12-13 12:30:21,810 INFO L386 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2022-12-13 12:30:21,810 INFO L386 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2022-12-13 12:30:21,810 INFO L386 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2022-12-13 12:30:21,936 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([373] L801-1-->L18: Formula: (and (= (mod v_~main$tmp_guard1~0_22 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_15|) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_21| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|) (= v_~main$tmp_guard1~0_22 (ite (= (ite (not (and (= v_~__unbuffered_p2_EBX~0_20 0) (= v_~__unbuffered_p2_EAX~0_22 1) (= v_~__unbuffered_p0_EAX~0_20 1) (= v_~__unbuffered_p0_EBX~0_20 0))) 1 0) 0) 0 1)) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_21| 0))) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_20, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_20, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_20, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression#1=|v_ULTIMATE.start___VERIFIER_assert_~expression#1_25|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_20, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_20, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_20, ULTIMATE.start___VERIFIER_assert_#in~expression#1=|v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_15|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_21|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_22, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression#1, ULTIMATE.start___VERIFIER_assert_#in~expression#1, ULTIMATE.start_assume_abort_if_not_~cond#1, ~main$tmp_guard1~0][75], [P2Thread1of1ForFork1InUse, 30#L732true, P1Thread1of1ForFork2InUse, 133#true, Black: 194#(and (= ~x~0 0) (= (store (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 1) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 1)), 91#L18true, Black: 195#(and (= ~x~0 0) (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 1) (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 1) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 1) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|))), Black: 197#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), 87#P1EXITtrue, Black: 139#(and (= (store (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= ~__unbuffered_p0_EAX~0 0) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0))), Black: 140#(and (not (= ~__unbuffered_p0_EAX~0 1)) (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 0))), Black: 141#(and (not (= ~__unbuffered_p0_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 138#(and (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (= ~__unbuffered_p0_EAX~0 0) (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0))), Black: 142#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), 165#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 151#(= ~__unbuffered_p2_EAX~0 0), 205#true, Black: 163#(and (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 0))), 116#L759true, Black: 182#(and (= ~x~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), 76#L771true, Black: 172#(= ~x~0 0), 198#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 180#(and (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), Black: 176#(and (= ~x~0 0) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), Black: 173#(or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1))), P3Thread1of1ForFork3InUse, Black: 174#(or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)), Black: 178#(and (= ~x~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), P0Thread1of1ForFork0InUse]) [2022-12-13 12:30:21,936 INFO L383 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2022-12-13 12:30:21,937 INFO L386 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2022-12-13 12:30:21,937 INFO L386 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2022-12-13 12:30:21,937 INFO L386 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2022-12-13 12:30:21,944 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([373] L801-1-->L18: Formula: (and (= (mod v_~main$tmp_guard1~0_22 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_15|) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_21| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|) (= v_~main$tmp_guard1~0_22 (ite (= (ite (not (and (= v_~__unbuffered_p2_EBX~0_20 0) (= v_~__unbuffered_p2_EAX~0_22 1) (= v_~__unbuffered_p0_EAX~0_20 1) (= v_~__unbuffered_p0_EBX~0_20 0))) 1 0) 0) 0 1)) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_21| 0))) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_20, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_20, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_20, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression#1=|v_ULTIMATE.start___VERIFIER_assert_~expression#1_25|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_20, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_20, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_20, ULTIMATE.start___VERIFIER_assert_#in~expression#1=|v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_15|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_21|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_22, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression#1, ULTIMATE.start___VERIFIER_assert_#in~expression#1, ULTIMATE.start_assume_abort_if_not_~cond#1, ~main$tmp_guard1~0][75], [P2Thread1of1ForFork1InUse, 30#L732true, P1Thread1of1ForFork2InUse, 133#true, 91#L18true, Black: 194#(and (= ~x~0 0) (= (store (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 1) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 1)), Black: 195#(and (= ~x~0 0) (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 1) (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 1) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 1) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|))), Black: 197#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 139#(and (= (store (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= ~__unbuffered_p0_EAX~0 0) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0))), Black: 140#(and (not (= ~__unbuffered_p0_EAX~0 1)) (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 0))), Black: 141#(and (not (= ~__unbuffered_p0_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 138#(and (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (= ~__unbuffered_p0_EAX~0 0) (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0))), Black: 142#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), 165#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 151#(= ~__unbuffered_p2_EAX~0 0), 75#P3EXITtrue, 205#true, Black: 163#(and (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 0))), 116#L759true, 40#L744true, Black: 182#(and (= ~x~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 172#(= ~x~0 0), 198#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 180#(and (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), Black: 176#(and (= ~x~0 0) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), Black: 173#(or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1))), P3Thread1of1ForFork3InUse, Black: 174#(or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)), Black: 178#(and (= ~x~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), P0Thread1of1ForFork0InUse]) [2022-12-13 12:30:21,944 INFO L383 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2022-12-13 12:30:21,944 INFO L386 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2022-12-13 12:30:21,944 INFO L386 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2022-12-13 12:30:21,945 INFO L386 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2022-12-13 12:30:22,056 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([373] L801-1-->L18: Formula: (and (= (mod v_~main$tmp_guard1~0_22 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_15|) (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_21| |v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|) (= v_~main$tmp_guard1~0_22 (ite (= (ite (not (and (= v_~__unbuffered_p2_EBX~0_20 0) (= v_~__unbuffered_p2_EAX~0_22 1) (= v_~__unbuffered_p0_EAX~0_20 1) (= v_~__unbuffered_p0_EBX~0_20 0))) 1 0) 0) 0 1)) (not (= |v_ULTIMATE.start_assume_abort_if_not_~cond#1_21| 0))) InVars {~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_20, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_20, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_20, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|} OutVars{ULTIMATE.start___VERIFIER_assert_~expression#1=|v_ULTIMATE.start___VERIFIER_assert_~expression#1_25|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_20, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_20, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_20, ULTIMATE.start___VERIFIER_assert_#in~expression#1=|v_ULTIMATE.start___VERIFIER_assert_#in~expression#1_15|, ULTIMATE.start_assume_abort_if_not_~cond#1=|v_ULTIMATE.start_assume_abort_if_not_~cond#1_21|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_22, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_22, ULTIMATE.start_assume_abort_if_not_#in~cond#1=|v_ULTIMATE.start_assume_abort_if_not_#in~cond#1_17|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression#1, ULTIMATE.start___VERIFIER_assert_#in~expression#1, ULTIMATE.start_assume_abort_if_not_~cond#1, ~main$tmp_guard1~0][75], [P2Thread1of1ForFork1InUse, 30#L732true, P1Thread1of1ForFork2InUse, 133#true, 91#L18true, Black: 194#(and (= ~x~0 0) (= (store (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 1) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 1)), Black: 195#(and (= ~x~0 0) (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 1) (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 1) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 1) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|))), Black: 197#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), 87#P1EXITtrue, Black: 139#(and (= (store (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= ~__unbuffered_p0_EAX~0 0) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0))), Black: 140#(and (not (= ~__unbuffered_p0_EAX~0 1)) (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 0))), Black: 141#(and (not (= ~__unbuffered_p0_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 138#(and (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (= ~__unbuffered_p0_EAX~0 0) (= |ULTIMATE.start_main_old_#valid#1| (store |#valid| |ULTIMATE.start_main_~#t2425~0#1.base| 0))), Black: 142#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), 165#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 151#(= ~__unbuffered_p2_EAX~0 0), 75#P3EXITtrue, 205#true, Black: 163#(and (= |ULTIMATE.start_main_old_#valid#1| (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2425~0#1.base|) 0)) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= ~__unbuffered_p2_EAX~0 1)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2426~0#1.base|) 0)) (not (= (select |#valid| |ULTIMATE.start_main_~#t2427~0#1.base|) 0))), 116#L759true, Black: 182#(and (= ~x~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|))), Black: 172#(= ~x~0 0), 198#(and (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (= (store (store (store (store |#valid| |ULTIMATE.start_main_~#t2427~0#1.base| 0) |ULTIMATE.start_main_~#t2425~0#1.base| 0) |ULTIMATE.start_main_~#t2428~0#1.base| 0) |ULTIMATE.start_main_~#t2426~0#1.base| 0) |ULTIMATE.start_main_old_#valid#1|) (not (= |ULTIMATE.start_main_~#t2426~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2427~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2426~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2425~0#1.base|)) (not (= |ULTIMATE.start_main_~#t2428~0#1.base| |ULTIMATE.start_main_~#t2427~0#1.base|))), Black: 180#(and (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), Black: 176#(and (= ~x~0 0) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), Black: 173#(or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1))), P3Thread1of1ForFork3InUse, Black: 174#(or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)), Black: 178#(and (= ~x~0 0) (or (<= (+ |ULTIMATE.start___VERIFIER_assert_#in~expression#1| 255) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_#in~expression#1|)) (or (not (= ~__unbuffered_p0_EAX~0 1)) (not (= ~__unbuffered_p2_EBX~0 0)) (not (= ~__unbuffered_p0_EBX~0 0)) (not (= ~__unbuffered_p2_EAX~0 1)))), P0Thread1of1ForFork0InUse]) [2022-12-13 12:30:22,057 INFO L383 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2022-12-13 12:30:22,057 INFO L386 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2022-12-13 12:30:22,057 INFO L386 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2022-12-13 12:30:22,057 INFO L386 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2022-12-13 12:30:22,213 INFO L130 PetriNetUnfolder]: 6195/9377 cut-off events. [2022-12-13 12:30:22,213 INFO L131 PetriNetUnfolder]: For 20695/21185 co-relation queries the response was YES. [2022-12-13 12:30:22,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31722 conditions, 9377 events. 6195/9377 cut-off events. For 20695/21185 co-relation queries the response was YES. Maximal size of possible extension queue 625. Compared 59676 event pairs, 3349 based on Foata normal form. 312/9391 useless extension candidates. Maximal degree in co-relation 31700. Up to 6902 conditions per place. [2022-12-13 12:30:22,252 INFO L137 encePairwiseOnDemand]: 227/231 looper letters, 61 selfloop transitions, 10 changer transitions 15/92 dead transitions. [2022-12-13 12:30:22,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 92 transitions, 791 flow [2022-12-13 12:30:22,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:30:22,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:30:22,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 593 transitions. [2022-12-13 12:30:22,254 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5134199134199134 [2022-12-13 12:30:22,254 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 593 transitions. [2022-12-13 12:30:22,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 593 transitions. [2022-12-13 12:30:22,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:22,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 593 transitions. [2022-12-13 12:30:22,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 118.6) internal successors, (593), 5 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:22,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 231.0) internal successors, (1386), 6 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:22,257 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 231.0) internal successors, (1386), 6 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:22,257 INFO L175 Difference]: Start difference. First operand has 73 places, 62 transitions, 481 flow. Second operand 5 states and 593 transitions. [2022-12-13 12:30:22,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 92 transitions, 791 flow [2022-12-13 12:30:22,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 92 transitions, 766 flow, removed 11 selfloop flow, removed 4 redundant places. [2022-12-13 12:30:22,356 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 494 flow [2022-12-13 12:30:22,356 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=494, PETRI_PLACES=72, PETRI_TRANSITIONS=62} [2022-12-13 12:30:22,356 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 29 predicate places. [2022-12-13 12:30:22,356 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 494 flow [2022-12-13 12:30:22,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:22,357 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:22,357 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:22,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 12:30:22,357 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:22,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:22,357 INFO L85 PathProgramCache]: Analyzing trace with hash 376349951, now seen corresponding path program 1 times [2022-12-13 12:30:22,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:22,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900723342] [2022-12-13 12:30:22,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:22,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:22,429 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 12:30:22,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:22,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900723342] [2022-12-13 12:30:22,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900723342] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:22,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:22,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:30:22,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039391154] [2022-12-13 12:30:22,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:22,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:30:22,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:22,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:30:22,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:30:22,452 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 231 [2022-12-13 12:30:22,452 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 494 flow. Second operand has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 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 12:30:22,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:22,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 231 [2022-12-13 12:30:22,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:23,437 INFO L130 PetriNetUnfolder]: 9069/13061 cut-off events. [2022-12-13 12:30:23,437 INFO L131 PetriNetUnfolder]: For 31958/31958 co-relation queries the response was YES. [2022-12-13 12:30:23,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44106 conditions, 13061 events. 9069/13061 cut-off events. For 31958/31958 co-relation queries the response was YES. Maximal size of possible extension queue 638. Compared 76300 event pairs, 934 based on Foata normal form. 495/13556 useless extension candidates. Maximal degree in co-relation 44083. Up to 6893 conditions per place. [2022-12-13 12:30:23,498 INFO L137 encePairwiseOnDemand]: 223/231 looper letters, 124 selfloop transitions, 33 changer transitions 8/165 dead transitions. [2022-12-13 12:30:23,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 165 transitions, 1507 flow [2022-12-13 12:30:23,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 12:30:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 12:30:23,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1003 transitions. [2022-12-13 12:30:23,501 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48244348244348245 [2022-12-13 12:30:23,501 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1003 transitions. [2022-12-13 12:30:23,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1003 transitions. [2022-12-13 12:30:23,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:23,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1003 transitions. [2022-12-13 12:30:23,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 111.44444444444444) internal successors, (1003), 9 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:23,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 231.0) internal successors, (2310), 10 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:23,507 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 231.0) internal successors, (2310), 10 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:23,507 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 494 flow. Second operand 9 states and 1003 transitions. [2022-12-13 12:30:23,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 165 transitions, 1507 flow [2022-12-13 12:30:23,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 165 transitions, 1434 flow, removed 10 selfloop flow, removed 5 redundant places. [2022-12-13 12:30:23,559 INFO L231 Difference]: Finished difference. Result has 80 places, 89 transitions, 862 flow [2022-12-13 12:30:23,559 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=862, PETRI_PLACES=80, PETRI_TRANSITIONS=89} [2022-12-13 12:30:23,560 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 37 predicate places. [2022-12-13 12:30:23,560 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 89 transitions, 862 flow [2022-12-13 12:30:23,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 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 12:30:23,561 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:23,561 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:23,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 12:30:23,561 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:23,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:23,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1119880937, now seen corresponding path program 1 times [2022-12-13 12:30:23,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:23,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368827967] [2022-12-13 12:30:23,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:23,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:23,667 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 12:30:23,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:23,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368827967] [2022-12-13 12:30:23,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368827967] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:23,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:23,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:30:23,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365012849] [2022-12-13 12:30:23,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:23,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:30:23,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:23,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:30:23,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:30:23,683 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 231 [2022-12-13 12:30:23,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 89 transitions, 862 flow. Second operand has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:23,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:23,684 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 231 [2022-12-13 12:30:23,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:24,765 INFO L130 PetriNetUnfolder]: 7202/11181 cut-off events. [2022-12-13 12:30:24,765 INFO L131 PetriNetUnfolder]: For 45817/46577 co-relation queries the response was YES. [2022-12-13 12:30:24,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44691 conditions, 11181 events. 7202/11181 cut-off events. For 45817/46577 co-relation queries the response was YES. Maximal size of possible extension queue 811. Compared 75897 event pairs, 1464 based on Foata normal form. 510/11438 useless extension candidates. Maximal degree in co-relation 44664. Up to 3244 conditions per place. [2022-12-13 12:30:24,806 INFO L137 encePairwiseOnDemand]: 226/231 looper letters, 74 selfloop transitions, 15 changer transitions 23/126 dead transitions. [2022-12-13 12:30:24,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 126 transitions, 1313 flow [2022-12-13 12:30:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:30:24,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:30:24,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 691 transitions. [2022-12-13 12:30:24,808 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49855699855699853 [2022-12-13 12:30:24,808 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 691 transitions. [2022-12-13 12:30:24,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 691 transitions. [2022-12-13 12:30:24,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:24,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 691 transitions. [2022-12-13 12:30:24,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:24,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:24,810 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:24,810 INFO L175 Difference]: Start difference. First operand has 80 places, 89 transitions, 862 flow. Second operand 6 states and 691 transitions. [2022-12-13 12:30:24,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 126 transitions, 1313 flow [2022-12-13 12:30:24,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 126 transitions, 1271 flow, removed 16 selfloop flow, removed 1 redundant places. [2022-12-13 12:30:24,878 INFO L231 Difference]: Finished difference. Result has 86 places, 79 transitions, 744 flow [2022-12-13 12:30:24,878 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=744, PETRI_PLACES=86, PETRI_TRANSITIONS=79} [2022-12-13 12:30:24,878 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 43 predicate places. [2022-12-13 12:30:24,879 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 79 transitions, 744 flow [2022-12-13 12:30:24,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:24,879 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:24,879 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:24,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 12:30:24,879 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:24,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:24,880 INFO L85 PathProgramCache]: Analyzing trace with hash 355089676, now seen corresponding path program 1 times [2022-12-13 12:30:24,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:24,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812408889] [2022-12-13 12:30:24,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:24,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:25,232 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 12:30:25,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:25,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812408889] [2022-12-13 12:30:25,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812408889] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:25,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:25,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:30:25,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316362033] [2022-12-13 12:30:25,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:25,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 12:30:25,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:25,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 12:30:25,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:30:25,499 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 231 [2022-12-13 12:30:25,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 79 transitions, 744 flow. Second operand has 8 states, 8 states have (on average 92.75) internal successors, (742), 8 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:25,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:25,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 231 [2022-12-13 12:30:25,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:26,037 INFO L130 PetriNetUnfolder]: 2833/4464 cut-off events. [2022-12-13 12:30:26,037 INFO L131 PetriNetUnfolder]: For 22294/22608 co-relation queries the response was YES. [2022-12-13 12:30:26,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19277 conditions, 4464 events. 2833/4464 cut-off events. For 22294/22608 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 26426 event pairs, 1807 based on Foata normal form. 36/4382 useless extension candidates. Maximal degree in co-relation 19248. Up to 3393 conditions per place. [2022-12-13 12:30:26,060 INFO L137 encePairwiseOnDemand]: 225/231 looper letters, 59 selfloop transitions, 7 changer transitions 26/106 dead transitions. [2022-12-13 12:30:26,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 106 transitions, 1082 flow [2022-12-13 12:30:26,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:30:26,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:30:26,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 684 transitions. [2022-12-13 12:30:26,062 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4230055658627087 [2022-12-13 12:30:26,062 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 684 transitions. [2022-12-13 12:30:26,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 684 transitions. [2022-12-13 12:30:26,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:26,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 684 transitions. [2022-12-13 12:30:26,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 97.71428571428571) internal successors, (684), 7 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:26,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 231.0) internal successors, (1848), 8 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:26,065 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 231.0) internal successors, (1848), 8 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:26,065 INFO L175 Difference]: Start difference. First operand has 86 places, 79 transitions, 744 flow. Second operand 7 states and 684 transitions. [2022-12-13 12:30:26,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 106 transitions, 1082 flow [2022-12-13 12:30:26,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 106 transitions, 1062 flow, removed 7 selfloop flow, removed 2 redundant places. [2022-12-13 12:30:26,091 INFO L231 Difference]: Finished difference. Result has 92 places, 77 transitions, 726 flow [2022-12-13 12:30:26,092 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=726, PETRI_PLACES=92, PETRI_TRANSITIONS=77} [2022-12-13 12:30:26,092 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 49 predicate places. [2022-12-13 12:30:26,092 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 77 transitions, 726 flow [2022-12-13 12:30:26,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 92.75) internal successors, (742), 8 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:26,092 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:26,092 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:26,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 12:30:26,093 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:26,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:26,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1205104124, now seen corresponding path program 2 times [2022-12-13 12:30:26,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:26,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789382115] [2022-12-13 12:30:26,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:26,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:26,492 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 12:30:26,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:26,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789382115] [2022-12-13 12:30:26,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789382115] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:26,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:26,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:30:26,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21416090] [2022-12-13 12:30:26,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:26,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 12:30:26,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:26,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 12:30:26,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:30:26,788 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 231 [2022-12-13 12:30:26,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 77 transitions, 726 flow. Second operand has 8 states, 8 states have (on average 91.75) internal successors, (734), 8 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:26,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:26,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 231 [2022-12-13 12:30:26,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:27,420 INFO L130 PetriNetUnfolder]: 2647/4199 cut-off events. [2022-12-13 12:30:27,420 INFO L131 PetriNetUnfolder]: For 18939/19225 co-relation queries the response was YES. [2022-12-13 12:30:27,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17800 conditions, 4199 events. 2647/4199 cut-off events. For 18939/19225 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 24355 event pairs, 1342 based on Foata normal form. 110/4229 useless extension candidates. Maximal degree in co-relation 17770. Up to 2776 conditions per place. [2022-12-13 12:30:27,444 INFO L137 encePairwiseOnDemand]: 225/231 looper letters, 37 selfloop transitions, 9 changer transitions 50/102 dead transitions. [2022-12-13 12:30:27,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 102 transitions, 1035 flow [2022-12-13 12:30:27,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 12:30:27,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 12:30:27,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 767 transitions. [2022-12-13 12:30:27,446 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41504329004329005 [2022-12-13 12:30:27,447 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 767 transitions. [2022-12-13 12:30:27,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 767 transitions. [2022-12-13 12:30:27,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:27,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 767 transitions. [2022-12-13 12:30:27,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 95.875) internal successors, (767), 8 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:27,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 231.0) internal successors, (2079), 9 states have internal predecessors, (2079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:27,451 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 231.0) internal successors, (2079), 9 states have internal predecessors, (2079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:27,451 INFO L175 Difference]: Start difference. First operand has 92 places, 77 transitions, 726 flow. Second operand 8 states and 767 transitions. [2022-12-13 12:30:27,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 102 transitions, 1035 flow [2022-12-13 12:30:27,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 102 transitions, 1004 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-12-13 12:30:27,478 INFO L231 Difference]: Finished difference. Result has 88 places, 49 transitions, 439 flow [2022-12-13 12:30:27,479 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=439, PETRI_PLACES=88, PETRI_TRANSITIONS=49} [2022-12-13 12:30:27,479 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 45 predicate places. [2022-12-13 12:30:27,479 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 49 transitions, 439 flow [2022-12-13 12:30:27,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 91.75) internal successors, (734), 8 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:27,480 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:27,480 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:27,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 12:30:27,480 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:27,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:27,480 INFO L85 PathProgramCache]: Analyzing trace with hash -916062673, now seen corresponding path program 1 times [2022-12-13 12:30:27,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:27,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708209427] [2022-12-13 12:30:27,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:27,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:27,589 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 12:30:27,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:27,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708209427] [2022-12-13 12:30:27,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708209427] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:27,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:27,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:30:27,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686524930] [2022-12-13 12:30:27,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:27,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:30:27,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:27,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:30:27,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:30:27,603 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 231 [2022-12-13 12:30:27,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 49 transitions, 439 flow. Second operand has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:27,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:27,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 231 [2022-12-13 12:30:27,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:28,003 INFO L130 PetriNetUnfolder]: 1862/2926 cut-off events. [2022-12-13 12:30:28,003 INFO L131 PetriNetUnfolder]: For 12076/12352 co-relation queries the response was YES. [2022-12-13 12:30:28,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12216 conditions, 2926 events. 1862/2926 cut-off events. For 12076/12352 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 16245 event pairs, 846 based on Foata normal form. 108/2935 useless extension candidates. Maximal degree in co-relation 12190. Up to 1279 conditions per place. [2022-12-13 12:30:28,017 INFO L137 encePairwiseOnDemand]: 226/231 looper letters, 33 selfloop transitions, 9 changer transitions 33/77 dead transitions. [2022-12-13 12:30:28,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 77 transitions, 711 flow [2022-12-13 12:30:28,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:30:28,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:30:28,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 693 transitions. [2022-12-13 12:30:28,020 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 12:30:28,020 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 693 transitions. [2022-12-13 12:30:28,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 693 transitions. [2022-12-13 12:30:28,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:28,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 693 transitions. [2022-12-13 12:30:28,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:28,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:28,023 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:28,023 INFO L175 Difference]: Start difference. First operand has 88 places, 49 transitions, 439 flow. Second operand 6 states and 693 transitions. [2022-12-13 12:30:28,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 77 transitions, 711 flow [2022-12-13 12:30:28,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 77 transitions, 611 flow, removed 11 selfloop flow, removed 19 redundant places. [2022-12-13 12:30:28,040 INFO L231 Difference]: Finished difference. Result has 70 places, 33 transitions, 270 flow [2022-12-13 12:30:28,040 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=270, PETRI_PLACES=70, PETRI_TRANSITIONS=33} [2022-12-13 12:30:28,041 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 27 predicate places. [2022-12-13 12:30:28,041 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 33 transitions, 270 flow [2022-12-13 12:30:28,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:28,041 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:28,041 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:28,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 12:30:28,042 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:28,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:28,042 INFO L85 PathProgramCache]: Analyzing trace with hash 600931313, now seen corresponding path program 1 times [2022-12-13 12:30:28,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:28,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955490389] [2022-12-13 12:30:28,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:28,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:28,121 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 12:30:28,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:28,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955490389] [2022-12-13 12:30:28,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955490389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:28,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:28,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:30:28,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93040026] [2022-12-13 12:30:28,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:28,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:30:28,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:28,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:30:28,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:30:28,132 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 231 [2022-12-13 12:30:28,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 33 transitions, 270 flow. Second operand has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:28,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:28,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 231 [2022-12-13 12:30:28,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:28,357 INFO L130 PetriNetUnfolder]: 1148/1836 cut-off events. [2022-12-13 12:30:28,357 INFO L131 PetriNetUnfolder]: For 13329/14336 co-relation queries the response was YES. [2022-12-13 12:30:28,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7260 conditions, 1836 events. 1148/1836 cut-off events. For 13329/14336 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 9982 event pairs, 445 based on Foata normal form. 101/1805 useless extension candidates. Maximal degree in co-relation 7239. Up to 1244 conditions per place. [2022-12-13 12:30:28,366 INFO L137 encePairwiseOnDemand]: 224/231 looper letters, 69 selfloop transitions, 9 changer transitions 2/82 dead transitions. [2022-12-13 12:30:28,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 82 transitions, 804 flow [2022-12-13 12:30:28,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:30:28,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:30:28,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 580 transitions. [2022-12-13 12:30:28,368 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5021645021645021 [2022-12-13 12:30:28,368 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 580 transitions. [2022-12-13 12:30:28,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 580 transitions. [2022-12-13 12:30:28,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:28,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 580 transitions. [2022-12-13 12:30:28,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:28,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 231.0) internal successors, (1386), 6 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:28,371 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 231.0) internal successors, (1386), 6 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:28,371 INFO L175 Difference]: Start difference. First operand has 70 places, 33 transitions, 270 flow. Second operand 5 states and 580 transitions. [2022-12-13 12:30:28,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 82 transitions, 804 flow [2022-12-13 12:30:28,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 82 transitions, 711 flow, removed 12 selfloop flow, removed 7 redundant places. [2022-12-13 12:30:28,377 INFO L231 Difference]: Finished difference. Result has 65 places, 41 transitions, 302 flow [2022-12-13 12:30:28,377 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=302, PETRI_PLACES=65, PETRI_TRANSITIONS=41} [2022-12-13 12:30:28,378 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 22 predicate places. [2022-12-13 12:30:28,378 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 41 transitions, 302 flow [2022-12-13 12:30:28,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:28,378 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:28,378 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:28,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 12:30:28,378 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:28,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:28,379 INFO L85 PathProgramCache]: Analyzing trace with hash 2145232495, now seen corresponding path program 1 times [2022-12-13 12:30:28,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:28,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831340194] [2022-12-13 12:30:28,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:28,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:28,545 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 12:30:28,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:28,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831340194] [2022-12-13 12:30:28,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831340194] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:28,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:28,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:30:28,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079822150] [2022-12-13 12:30:28,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:28,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:30:28,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:28,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:30:28,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:30:28,557 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 231 [2022-12-13 12:30:28,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 41 transitions, 302 flow. Second operand has 5 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:28,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:28,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 231 [2022-12-13 12:30:28,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:28,757 INFO L130 PetriNetUnfolder]: 951/1619 cut-off events. [2022-12-13 12:30:28,757 INFO L131 PetriNetUnfolder]: For 9713/10825 co-relation queries the response was YES. [2022-12-13 12:30:28,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7637 conditions, 1619 events. 951/1619 cut-off events. For 9713/10825 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 9316 event pairs, 147 based on Foata normal form. 202/1714 useless extension candidates. Maximal degree in co-relation 7618. Up to 986 conditions per place. [2022-12-13 12:30:28,763 INFO L137 encePairwiseOnDemand]: 224/231 looper letters, 82 selfloop transitions, 17 changer transitions 3/104 dead transitions. [2022-12-13 12:30:28,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 104 transitions, 981 flow [2022-12-13 12:30:28,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:30:28,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:30:28,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 810 transitions. [2022-12-13 12:30:28,765 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5009276437847866 [2022-12-13 12:30:28,765 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 810 transitions. [2022-12-13 12:30:28,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 810 transitions. [2022-12-13 12:30:28,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:28,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 810 transitions. [2022-12-13 12:30:28,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 115.71428571428571) internal successors, (810), 7 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:28,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 231.0) internal successors, (1848), 8 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:28,768 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 231.0) internal successors, (1848), 8 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:28,768 INFO L175 Difference]: Start difference. First operand has 65 places, 41 transitions, 302 flow. Second operand 7 states and 810 transitions. [2022-12-13 12:30:28,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 104 transitions, 981 flow [2022-12-13 12:30:28,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 104 transitions, 976 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:30:28,772 INFO L231 Difference]: Finished difference. Result has 73 places, 49 transitions, 418 flow [2022-12-13 12:30:28,773 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=418, PETRI_PLACES=73, PETRI_TRANSITIONS=49} [2022-12-13 12:30:28,773 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 30 predicate places. [2022-12-13 12:30:28,773 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 49 transitions, 418 flow [2022-12-13 12:30:28,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:28,774 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:28,774 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:28,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 12:30:28,774 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:28,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:28,774 INFO L85 PathProgramCache]: Analyzing trace with hash 2077108523, now seen corresponding path program 1 times [2022-12-13 12:30:28,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:28,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196429153] [2022-12-13 12:30:28,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:28,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:28,859 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 12:30:28,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:28,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196429153] [2022-12-13 12:30:28,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196429153] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:28,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:28,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:30:28,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806102410] [2022-12-13 12:30:28,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:28,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:30:28,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:28,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:30:28,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:30:28,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 231 [2022-12-13 12:30:28,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 49 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 108.83333333333333) internal successors, (653), 6 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 12:30:28,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:28,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 231 [2022-12-13 12:30:28,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:29,086 INFO L130 PetriNetUnfolder]: 730/1325 cut-off events. [2022-12-13 12:30:29,087 INFO L131 PetriNetUnfolder]: For 9778/11076 co-relation queries the response was YES. [2022-12-13 12:30:29,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7670 conditions, 1325 events. 730/1325 cut-off events. For 9778/11076 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 7876 event pairs, 31 based on Foata normal form. 271/1507 useless extension candidates. Maximal degree in co-relation 7648. Up to 827 conditions per place. [2022-12-13 12:30:29,092 INFO L137 encePairwiseOnDemand]: 224/231 looper letters, 82 selfloop transitions, 25 changer transitions 7/116 dead transitions. [2022-12-13 12:30:29,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 116 transitions, 1215 flow [2022-12-13 12:30:29,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 12:30:29,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 12:30:29,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1034 transitions. [2022-12-13 12:30:29,094 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4973544973544973 [2022-12-13 12:30:29,094 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1034 transitions. [2022-12-13 12:30:29,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1034 transitions. [2022-12-13 12:30:29,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:29,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1034 transitions. [2022-12-13 12:30:29,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.88888888888889) internal successors, (1034), 9 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 231.0) internal successors, (2310), 10 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,097 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 231.0) internal successors, (2310), 10 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,097 INFO L175 Difference]: Start difference. First operand has 73 places, 49 transitions, 418 flow. Second operand 9 states and 1034 transitions. [2022-12-13 12:30:29,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 116 transitions, 1215 flow [2022-12-13 12:30:29,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 116 transitions, 1170 flow, removed 15 selfloop flow, removed 3 redundant places. [2022-12-13 12:30:29,112 INFO L231 Difference]: Finished difference. Result has 81 places, 57 transitions, 534 flow [2022-12-13 12:30:29,113 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=534, PETRI_PLACES=81, PETRI_TRANSITIONS=57} [2022-12-13 12:30:29,113 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 38 predicate places. [2022-12-13 12:30:29,113 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 57 transitions, 534 flow [2022-12-13 12:30:29,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.83333333333333) internal successors, (653), 6 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 12:30:29,113 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:29,113 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 12:30:29,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 12:30:29,113 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:29,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:29,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1143719099, now seen corresponding path program 1 times [2022-12-13 12:30:29,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:29,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328556547] [2022-12-13 12:30:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:29,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:29,181 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 12:30:29,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:29,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328556547] [2022-12-13 12:30:29,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328556547] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:29,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:29,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:30:29,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604586089] [2022-12-13 12:30:29,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:29,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:30:29,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:29,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:30:29,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:30:29,197 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 231 [2022-12-13 12:30:29,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 57 transitions, 534 flow. Second operand has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:29,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 231 [2022-12-13 12:30:29,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:29,426 INFO L130 PetriNetUnfolder]: 1092/2118 cut-off events. [2022-12-13 12:30:29,426 INFO L131 PetriNetUnfolder]: For 15384/15518 co-relation queries the response was YES. [2022-12-13 12:30:29,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13121 conditions, 2118 events. 1092/2118 cut-off events. For 15384/15518 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 14190 event pairs, 196 based on Foata normal form. 18/2112 useless extension candidates. Maximal degree in co-relation 13096. Up to 1073 conditions per place. [2022-12-13 12:30:29,433 INFO L137 encePairwiseOnDemand]: 227/231 looper letters, 49 selfloop transitions, 3 changer transitions 51/104 dead transitions. [2022-12-13 12:30:29,433 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 104 transitions, 1221 flow [2022-12-13 12:30:29,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:30:29,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:30:29,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 574 transitions. [2022-12-13 12:30:29,434 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49696969696969695 [2022-12-13 12:30:29,434 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 574 transitions. [2022-12-13 12:30:29,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 574 transitions. [2022-12-13 12:30:29,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:29,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 574 transitions. [2022-12-13 12:30:29,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 231.0) internal successors, (1386), 6 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,436 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 231.0) internal successors, (1386), 6 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,437 INFO L175 Difference]: Start difference. First operand has 81 places, 57 transitions, 534 flow. Second operand 5 states and 574 transitions. [2022-12-13 12:30:29,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 104 transitions, 1221 flow [2022-12-13 12:30:29,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 104 transitions, 1033 flow, removed 62 selfloop flow, removed 4 redundant places. [2022-12-13 12:30:29,493 INFO L231 Difference]: Finished difference. Result has 84 places, 46 transitions, 392 flow [2022-12-13 12:30:29,493 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=392, PETRI_PLACES=84, PETRI_TRANSITIONS=46} [2022-12-13 12:30:29,493 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 41 predicate places. [2022-12-13 12:30:29,493 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 46 transitions, 392 flow [2022-12-13 12:30:29,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,493 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:29,493 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 12:30:29,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 12:30:29,494 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:29,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:29,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1131316393, now seen corresponding path program 2 times [2022-12-13 12:30:29,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:29,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041082317] [2022-12-13 12:30:29,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:29,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:29,575 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 12:30:29,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:29,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041082317] [2022-12-13 12:30:29,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041082317] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:29,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:29,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:30:29,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261514946] [2022-12-13 12:30:29,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:29,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:30:29,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:29,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:30:29,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:30:29,588 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 231 [2022-12-13 12:30:29,589 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 46 transitions, 392 flow. Second operand has 7 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:29,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 231 [2022-12-13 12:30:29,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:29,737 INFO L130 PetriNetUnfolder]: 352/691 cut-off events. [2022-12-13 12:30:29,738 INFO L131 PetriNetUnfolder]: For 4230/4436 co-relation queries the response was YES. [2022-12-13 12:30:29,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3506 conditions, 691 events. 352/691 cut-off events. For 4230/4436 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3742 event pairs, 10 based on Foata normal form. 82/741 useless extension candidates. Maximal degree in co-relation 3477. Up to 266 conditions per place. [2022-12-13 12:30:29,741 INFO L137 encePairwiseOnDemand]: 224/231 looper letters, 34 selfloop transitions, 17 changer transitions 26/79 dead transitions. [2022-12-13 12:30:29,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 79 transitions, 838 flow [2022-12-13 12:30:29,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 12:30:29,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 12:30:29,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 904 transitions. [2022-12-13 12:30:29,743 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48917748917748916 [2022-12-13 12:30:29,743 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 904 transitions. [2022-12-13 12:30:29,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 904 transitions. [2022-12-13 12:30:29,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:29,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 904 transitions. [2022-12-13 12:30:29,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 113.0) internal successors, (904), 8 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 12:30:29,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 231.0) internal successors, (2079), 9 states have internal predecessors, (2079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,747 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 231.0) internal successors, (2079), 9 states have internal predecessors, (2079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,747 INFO L175 Difference]: Start difference. First operand has 84 places, 46 transitions, 392 flow. Second operand 8 states and 904 transitions. [2022-12-13 12:30:29,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 79 transitions, 838 flow [2022-12-13 12:30:29,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 79 transitions, 783 flow, removed 25 selfloop flow, removed 7 redundant places. [2022-12-13 12:30:29,755 INFO L231 Difference]: Finished difference. Result has 80 places, 39 transitions, 338 flow [2022-12-13 12:30:29,755 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=338, PETRI_PLACES=80, PETRI_TRANSITIONS=39} [2022-12-13 12:30:29,756 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 37 predicate places. [2022-12-13 12:30:29,756 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 39 transitions, 338 flow [2022-12-13 12:30:29,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,757 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:30:29,757 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:29,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 12:30:29,757 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-12-13 12:30:29,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:30:29,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1113730926, now seen corresponding path program 1 times [2022-12-13 12:30:29,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:30:29,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022600630] [2022-12-13 12:30:29,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:30:29,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:30:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:30:29,859 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 12:30:29,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:30:29,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022600630] [2022-12-13 12:30:29,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022600630] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:30:29,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:30:29,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:30:29,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795553131] [2022-12-13 12:30:29,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:30:29,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:30:29,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:30:29,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:30:29,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:30:29,884 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 231 [2022-12-13 12:30:29,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 39 transitions, 338 flow. Second operand has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:30:29,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 231 [2022-12-13 12:30:29,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:30:29,989 INFO L130 PetriNetUnfolder]: 223/437 cut-off events. [2022-12-13 12:30:29,989 INFO L131 PetriNetUnfolder]: For 1862/1862 co-relation queries the response was YES. [2022-12-13 12:30:29,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2427 conditions, 437 events. 223/437 cut-off events. For 1862/1862 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1800 event pairs, 48 based on Foata normal form. 3/440 useless extension candidates. Maximal degree in co-relation 2401. Up to 233 conditions per place. [2022-12-13 12:30:29,991 INFO L137 encePairwiseOnDemand]: 225/231 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2022-12-13 12:30:29,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 50 transitions, 520 flow [2022-12-13 12:30:29,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:30:29,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:30:29,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 636 transitions. [2022-12-13 12:30:29,992 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4588744588744589 [2022-12-13 12:30:29,992 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 636 transitions. [2022-12-13 12:30:29,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 636 transitions. [2022-12-13 12:30:29,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:30:29,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 636 transitions. [2022-12-13 12:30:29,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 106.0) internal successors, (636), 6 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,994 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:29,994 INFO L175 Difference]: Start difference. First operand has 80 places, 39 transitions, 338 flow. Second operand 6 states and 636 transitions. [2022-12-13 12:30:29,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 50 transitions, 520 flow [2022-12-13 12:30:29,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 50 transitions, 390 flow, removed 32 selfloop flow, removed 16 redundant places. [2022-12-13 12:30:29,998 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2022-12-13 12:30:29,998 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2022-12-13 12:30:29,998 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 20 predicate places. [2022-12-13 12:30:29,998 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2022-12-13 12:30:29,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 105.2) internal successors, (526), 5 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:30:30,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2022-12-13 12:30:30,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2022-12-13 12:30:30,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2022-12-13 12:30:30,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2022-12-13 12:30:30,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 14 remaining) [2022-12-13 12:30:30,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 14 remaining) [2022-12-13 12:30:30,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2022-12-13 12:30:30,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2022-12-13 12:30:30,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (5 of 14 remaining) [2022-12-13 12:30:30,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (4 of 14 remaining) [2022-12-13 12:30:30,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 14 remaining) [2022-12-13 12:30:30,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 14 remaining) [2022-12-13 12:30:30,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 14 remaining) [2022-12-13 12:30:30,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 14 remaining) [2022-12-13 12:30:30,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 12:30:30,002 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:30:30,004 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:30:30,005 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:30:30,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:30:30 BasicIcfg [2022-12-13 12:30:30,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:30:30,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:30:30,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:30:30,008 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:30:30,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:30:13" (3/4) ... [2022-12-13 12:30:30,011 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 12:30:30,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 12:30:30,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 12:30:30,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 12:30:30,017 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-12-13 12:30:30,021 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-12-13 12:30:30,021 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 12:30:30,021 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 12:30:30,021 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 12:30:30,046 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:30:30,046 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:30:30,046 INFO L158 Benchmark]: Toolchain (without parser) took 17911.53ms. Allocated memory was 138.4MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 81.3MB in the beginning and 849.0MB in the end (delta: -767.7MB). Peak memory consumption was 888.1MB. Max. memory is 16.1GB. [2022-12-13 12:30:30,047 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 138.4MB. Free memory was 89.6MB in the beginning and 89.4MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:30:30,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.86ms. Allocated memory is still 138.4MB. Free memory was 81.1MB in the beginning and 101.1MB in the end (delta: -20.0MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2022-12-13 12:30:30,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.82ms. Allocated memory is still 138.4MB. Free memory was 100.5MB in the beginning and 98.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:30:30,048 INFO L158 Benchmark]: Boogie Preprocessor took 24.55ms. Allocated memory is still 138.4MB. Free memory was 98.4MB in the beginning and 97.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:30:30,048 INFO L158 Benchmark]: RCFGBuilder took 349.69ms. Allocated memory is still 138.4MB. Free memory was 97.3MB in the beginning and 81.6MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 12:30:30,048 INFO L158 Benchmark]: TraceAbstraction took 17001.93ms. Allocated memory was 138.4MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 81.1MB in the beginning and 852.2MB in the end (delta: -771.1MB). Peak memory consumption was 883.6MB. Max. memory is 16.1GB. [2022-12-13 12:30:30,048 INFO L158 Benchmark]: Witness Printer took 38.05ms. Allocated memory is still 1.8GB. Free memory was 852.2MB in the beginning and 849.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:30:30,050 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 138.4MB. Free memory was 89.6MB in the beginning and 89.4MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.86ms. Allocated memory is still 138.4MB. Free memory was 81.1MB in the beginning and 101.1MB in the end (delta: -20.0MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.82ms. Allocated memory is still 138.4MB. Free memory was 100.5MB in the beginning and 98.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.55ms. Allocated memory is still 138.4MB. Free memory was 98.4MB in the beginning and 97.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 349.69ms. Allocated memory is still 138.4MB. Free memory was 97.3MB in the beginning and 81.6MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 17001.93ms. Allocated memory was 138.4MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 81.1MB in the beginning and 852.2MB in the end (delta: -771.1MB). Peak memory consumption was 883.6MB. Max. memory is 16.1GB. * Witness Printer took 38.05ms. Allocated memory is still 1.8GB. Free memory was 852.2MB in the beginning and 849.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 121 PlacesBefore, 43 PlacesAfterwards, 110 TransitionsBefore, 31 TransitionsAfterwards, 2382 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 68 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 112 TotalNumberOfCompositions, 4177 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2226, independent: 2133, independent conditional: 0, independent unconditional: 2133, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1291, independent: 1268, independent conditional: 0, independent unconditional: 1268, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2226, independent: 865, independent conditional: 0, independent unconditional: 865, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 1291, unknown conditional: 0, unknown unconditional: 1291] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 788]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 148 locations, 14 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: 16.9s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1597 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1284 mSDsluCounter, 417 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 370 mSDsCounter, 111 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4392 IncrementalHoareTripleChecker+Invalid, 4503 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 111 mSolverCounterUnsat, 47 mSDtfsCounter, 4392 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=862occurred in iteration=8, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 249 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 231 ConstructedInterpolants, 0 QuantifiedInterpolants, 2799 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 12:30:30,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2bd6b5-aeb1-48f5-a477-de0e8a217c9c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE