./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_7e611454-7f47-4ae6-bbfe-b969331a3000/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/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_7e611454-7f47-4ae6-bbfe-b969331a3000/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57b9f50bcc1a62fff86b613ffbbe182d8b5828efa44efacd776b022a56af4d4d --- 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 15:12:58,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:12:58,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:12:58,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:12:58,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:12:58,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:12:58,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:12:58,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:12:58,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:12:58,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:12:58,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:12:58,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:12:58,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:12:58,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:12:58,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:12:58,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:12:58,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:12:58,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:12:58,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:12:58,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:12:58,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:12:58,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:12:58,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:12:58,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:12:58,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:12:58,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:12:58,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:12:59,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:12:59,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:12:59,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:12:59,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:12:59,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:12:59,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:12:59,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:12:59,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:12:59,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:12:59,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:12:59,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:12:59,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:12:59,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:12:59,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:12:59,008 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 15:12:59,029 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:12:59,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:12:59,029 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:12:59,029 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:12:59,030 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:12:59,030 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:12:59,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:12:59,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:12:59,031 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:12:59,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:12:59,032 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:12:59,032 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:12:59,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:12:59,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:12:59,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:12:59,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:12:59,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:12:59,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:12:59,033 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 15:12:59,033 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:12:59,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:12:59,034 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:12:59,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:12:59,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:12:59,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:12:59,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:12:59,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:12:59,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:12:59,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:12:59,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:12:59,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:12:59,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:12:59,036 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:12:59,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:12:59,036 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:12:59,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:12:59,037 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:12:59,037 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_7e611454-7f47-4ae6-bbfe-b969331a3000/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b9f50bcc1a62fff86b613ffbbe182d8b5828efa44efacd776b022a56af4d4d [2022-12-13 15:12:59,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:12:59,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:12:59,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:12:59,261 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:12:59,261 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:12:59,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2022-12-13 15:13:01,859 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:13:02,027 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:13:02,028 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2022-12-13 15:13:02,032 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/bin/uautomizer-uyxdKDjOR8/data/de6f88e8e/167b798a7c954c378358e22830d3ae07/FLAGf76cdd05d [2022-12-13 15:13:02,436 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/bin/uautomizer-uyxdKDjOR8/data/de6f88e8e/167b798a7c954c378358e22830d3ae07 [2022-12-13 15:13:02,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:13:02,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:13:02,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:13:02,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:13:02,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:13:02,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:13:02" (1/1) ... [2022-12-13 15:13:02,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca75f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:13:02, skipping insertion in model container [2022-12-13 15:13:02,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:13:02" (1/1) ... [2022-12-13 15:13:02,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:13:02,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:13:02,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,569 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,569 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,586 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_7e611454-7f47-4ae6-bbfe-b969331a3000/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c[3526,3539] [2022-12-13 15:13:02,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:13:02,594 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:13:02,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,607 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,609 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,611 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:13:02,612 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:13:02,617 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_7e611454-7f47-4ae6-bbfe-b969331a3000/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c[3526,3539] [2022-12-13 15:13:02,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:13:02,628 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:13:02,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:13:02 WrapperNode [2022-12-13 15:13:02,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:13:02,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:13:02,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:13:02,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:13:02,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:13:02" (1/1) ... [2022-12-13 15:13:02,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:13:02" (1/1) ... [2022-12-13 15:13:02,659 INFO L138 Inliner]: procedures = 23, calls = 70, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 214 [2022-12-13 15:13:02,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:13:02,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:13:02,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:13:02,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:13:02,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:13:02" (1/1) ... [2022-12-13 15:13:02,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:13:02" (1/1) ... [2022-12-13 15:13:02,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:13:02" (1/1) ... [2022-12-13 15:13:02,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:13:02" (1/1) ... [2022-12-13 15:13:02,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:13:02" (1/1) ... [2022-12-13 15:13:02,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:13:02" (1/1) ... [2022-12-13 15:13:02,681 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:13:02" (1/1) ... [2022-12-13 15:13:02,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:13:02" (1/1) ... [2022-12-13 15:13:02,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:13:02,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:13:02,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:13:02,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:13:02,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:13:02" (1/1) ... [2022-12-13 15:13:02,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:13:02,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:13:02,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:13:02,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:13:02,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:13:02,743 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 15:13:02,743 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 15:13:02,743 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 15:13:02,743 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 15:13:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 15:13:02,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 15:13:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-13 15:13:02,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-13 15:13:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:13:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:13:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:13:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 15:13:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 15:13:02,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:13:02,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:13:02,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:13:02,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:13:02,746 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 15:13:02,821 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:13:02,823 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:13:03,063 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:13:03,142 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:13:03,142 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:13:03,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:13:03 BoogieIcfgContainer [2022-12-13 15:13:03,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:13:03,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:13:03,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:13:03,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:13:03,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:13:02" (1/3) ... [2022-12-13 15:13:03,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f260bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:13:03, skipping insertion in model container [2022-12-13 15:13:03,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:13:02" (2/3) ... [2022-12-13 15:13:03,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f260bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:13:03, skipping insertion in model container [2022-12-13 15:13:03,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:13:03" (3/3) ... [2022-12-13 15:13:03,151 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2022-12-13 15:13:03,157 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 15:13:03,165 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:13:03,165 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-12-13 15:13:03,165 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:13:03,237 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-13 15:13:03,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 157 transitions, 346 flow [2022-12-13 15:13:03,340 INFO L130 PetriNetUnfolder]: 2/153 cut-off events. [2022-12-13 15:13:03,340 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 15:13:03,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 153 events. 2/153 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 116 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2022-12-13 15:13:03,345 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 157 transitions, 346 flow [2022-12-13 15:13:03,350 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 130 transitions, 281 flow [2022-12-13 15:13:03,353 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:13:03,363 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 130 transitions, 281 flow [2022-12-13 15:13:03,365 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 130 transitions, 281 flow [2022-12-13 15:13:03,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 130 transitions, 281 flow [2022-12-13 15:13:03,391 INFO L130 PetriNetUnfolder]: 1/130 cut-off events. [2022-12-13 15:13:03,392 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 15:13:03,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 130 events. 1/130 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 115 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2022-12-13 15:13:03,395 INFO L119 LiptonReduction]: Number of co-enabled transitions 2622 [2022-12-13 15:13:07,831 INFO L134 LiptonReduction]: Checked pairs total: 14421 [2022-12-13 15:13:07,831 INFO L136 LiptonReduction]: Total number of compositions: 88 [2022-12-13 15:13:07,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:13:07,849 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5deeb1f2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:13:07,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-12-13 15:13:07,851 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2022-12-13 15:13:07,852 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:13:07,852 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:13:07,852 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 15:13:07,853 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-12-13 15:13:07,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:13:07,856 INFO L85 PathProgramCache]: Analyzing trace with hash 642335, now seen corresponding path program 1 times [2022-12-13 15:13:07,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:13:07,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826447407] [2022-12-13 15:13:07,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:13:07,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:13:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:13:08,150 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 15:13:08,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:13:08,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826447407] [2022-12-13 15:13:08,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826447407] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:13:08,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:13:08,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:13:08,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866150598] [2022-12-13 15:13:08,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:13:08,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:13:08,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:13:08,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:13:08,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:13:08,187 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 245 [2022-12-13 15:13:08,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:08,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:13:08,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 245 [2022-12-13 15:13:08,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:13:10,858 INFO L130 PetriNetUnfolder]: 29677/41306 cut-off events. [2022-12-13 15:13:10,858 INFO L131 PetriNetUnfolder]: For 2151/2151 co-relation queries the response was YES. [2022-12-13 15:13:10,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82968 conditions, 41306 events. 29677/41306 cut-off events. For 2151/2151 co-relation queries the response was YES. Maximal size of possible extension queue 2719. Compared 287972 event pairs, 23032 based on Foata normal form. 0/22098 useless extension candidates. Maximal degree in co-relation 82092. Up to 39966 conditions per place. [2022-12-13 15:13:11,041 INFO L137 encePairwiseOnDemand]: 232/245 looper letters, 49 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2022-12-13 15:13:11,041 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 59 transitions, 256 flow [2022-12-13 15:13:11,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:13:11,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:13:11,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2022-12-13 15:13:11,052 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5578231292517006 [2022-12-13 15:13:11,052 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 410 transitions. [2022-12-13 15:13:11,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 410 transitions. [2022-12-13 15:13:11,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:13:11,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 410 transitions. [2022-12-13 15:13:11,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:11,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:11,063 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:11,064 INFO L175 Difference]: Start difference. First operand has 61 places, 48 transitions, 117 flow. Second operand 3 states and 410 transitions. [2022-12-13 15:13:11,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 59 transitions, 256 flow [2022-12-13 15:13:11,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 59 transitions, 238 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-12-13 15:13:11,075 INFO L231 Difference]: Finished difference. Result has 57 places, 52 transitions, 151 flow [2022-12-13 15:13:11,077 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=57, PETRI_TRANSITIONS=52} [2022-12-13 15:13:11,079 INFO L288 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2022-12-13 15:13:11,079 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 52 transitions, 151 flow [2022-12-13 15:13:11,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:11,080 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:13:11,080 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 15:13:11,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:13:11,080 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-12-13 15:13:11,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:13:11,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1960268890, now seen corresponding path program 1 times [2022-12-13 15:13:11,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:13:11,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94561086] [2022-12-13 15:13:11,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:13:11,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:13:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:13:11,119 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 15:13:11,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:13:11,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94561086] [2022-12-13 15:13:11,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94561086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:13:11,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:13:11,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:13:11,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541920348] [2022-12-13 15:13:11,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:13:11,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:13:11,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:13:11,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:13:11,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:13:11,127 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 245 [2022-12-13 15:13:11,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 52 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:11,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:13:11,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 245 [2022-12-13 15:13:11,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:13:12,533 INFO L130 PetriNetUnfolder]: 17791/24940 cut-off events. [2022-12-13 15:13:12,534 INFO L131 PetriNetUnfolder]: For 2614/2614 co-relation queries the response was YES. [2022-12-13 15:13:12,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56436 conditions, 24940 events. 17791/24940 cut-off events. For 2614/2614 co-relation queries the response was YES. Maximal size of possible extension queue 1668. Compared 168015 event pairs, 16781 based on Foata normal form. 0/14799 useless extension candidates. Maximal degree in co-relation 40868. Up to 24138 conditions per place. [2022-12-13 15:13:12,617 INFO L137 encePairwiseOnDemand]: 240/245 looper letters, 42 selfloop transitions, 1 changer transitions 0/48 dead transitions. [2022-12-13 15:13:12,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 48 transitions, 221 flow [2022-12-13 15:13:12,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:13:12,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:13:12,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2022-12-13 15:13:12,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5319727891156463 [2022-12-13 15:13:12,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 391 transitions. [2022-12-13 15:13:12,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 391 transitions. [2022-12-13 15:13:12,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:13:12,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 391 transitions. [2022-12-13 15:13:12,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:12,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:12,625 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 245.0) internal successors, (980), 4 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:12,625 INFO L175 Difference]: Start difference. First operand has 57 places, 52 transitions, 151 flow. Second operand 3 states and 391 transitions. [2022-12-13 15:13:12,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 48 transitions, 221 flow [2022-12-13 15:13:12,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 48 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:13:12,627 INFO L231 Difference]: Finished difference. Result has 54 places, 48 transitions, 132 flow [2022-12-13 15:13:12,627 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=54, PETRI_TRANSITIONS=48} [2022-12-13 15:13:12,627 INFO L288 CegarLoopForPetriNet]: 61 programPoint places, -7 predicate places. [2022-12-13 15:13:12,627 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 48 transitions, 132 flow [2022-12-13 15:13:12,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:12,628 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:13:12,628 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 15:13:12,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:13:12,628 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-12-13 15:13:12,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:13:12,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1960226111, now seen corresponding path program 1 times [2022-12-13 15:13:12,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:13:12,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60324638] [2022-12-13 15:13:12,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:13:12,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:13:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:13:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:13:12,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:13:12,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60324638] [2022-12-13 15:13:12,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60324638] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:13:12,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:13:12,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:13:12,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396556205] [2022-12-13 15:13:12,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:13:12,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:13:12,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:13:12,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:13:12,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:13:12,755 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 245 [2022-12-13 15:13:12,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:12,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:13:12,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 245 [2022-12-13 15:13:12,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:13:13,802 INFO L130 PetriNetUnfolder]: 16537/23482 cut-off events. [2022-12-13 15:13:13,803 INFO L131 PetriNetUnfolder]: For 2467/2467 co-relation queries the response was YES. [2022-12-13 15:13:13,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52119 conditions, 23482 events. 16537/23482 cut-off events. For 2467/2467 co-relation queries the response was YES. Maximal size of possible extension queue 1665. Compared 161766 event pairs, 7312 based on Foata normal form. 0/14178 useless extension candidates. Maximal degree in co-relation 52111. Up to 22290 conditions per place. [2022-12-13 15:13:13,882 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 68 selfloop transitions, 9 changer transitions 0/82 dead transitions. [2022-12-13 15:13:13,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 82 transitions, 370 flow [2022-12-13 15:13:13,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:13:13,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:13:13,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 545 transitions. [2022-12-13 15:13:13,884 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5561224489795918 [2022-12-13 15:13:13,884 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 545 transitions. [2022-12-13 15:13:13,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 545 transitions. [2022-12-13 15:13:13,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:13:13,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 545 transitions. [2022-12-13 15:13:13,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.25) internal successors, (545), 4 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:13,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:13,889 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 245.0) internal successors, (1225), 5 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:13,889 INFO L175 Difference]: Start difference. First operand has 54 places, 48 transitions, 132 flow. Second operand 4 states and 545 transitions. [2022-12-13 15:13:13,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 82 transitions, 370 flow [2022-12-13 15:13:13,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 82 transitions, 369 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:13:13,891 INFO L231 Difference]: Finished difference. Result has 57 places, 52 transitions, 189 flow [2022-12-13 15:13:13,891 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=189, PETRI_PLACES=57, PETRI_TRANSITIONS=52} [2022-12-13 15:13:13,892 INFO L288 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2022-12-13 15:13:13,892 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 52 transitions, 189 flow [2022-12-13 15:13:13,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:13,892 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:13:13,893 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:13:13,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:13:13,893 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-12-13 15:13:13,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:13:13,893 INFO L85 PathProgramCache]: Analyzing trace with hash 521091427, now seen corresponding path program 1 times [2022-12-13 15:13:13,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:13:13,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522114757] [2022-12-13 15:13:13,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:13:13,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:13:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:13:13,998 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 15:13:13,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:13:13,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522114757] [2022-12-13 15:13:13,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522114757] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:13:13,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:13:13,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:13:13,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968748425] [2022-12-13 15:13:13,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:13:13,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:13:13,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:13:13,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:13:14,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:13:14,011 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 245 [2022-12-13 15:13:14,011 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 52 transitions, 189 flow. Second operand has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:14,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:13:14,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 245 [2022-12-13 15:13:14,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:13:14,858 INFO L130 PetriNetUnfolder]: 9533/13858 cut-off events. [2022-12-13 15:13:14,858 INFO L131 PetriNetUnfolder]: For 4575/4575 co-relation queries the response was YES. [2022-12-13 15:13:14,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34861 conditions, 13858 events. 9533/13858 cut-off events. For 4575/4575 co-relation queries the response was YES. Maximal size of possible extension queue 824. Compared 88285 event pairs, 4244 based on Foata normal form. 0/9878 useless extension candidates. Maximal degree in co-relation 34851. Up to 12133 conditions per place. [2022-12-13 15:13:14,923 INFO L137 encePairwiseOnDemand]: 228/245 looper letters, 65 selfloop transitions, 9 changer transitions 0/79 dead transitions. [2022-12-13 15:13:14,923 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 79 transitions, 438 flow [2022-12-13 15:13:14,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:13:14,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:13:14,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 639 transitions. [2022-12-13 15:13:14,925 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5216326530612245 [2022-12-13 15:13:14,925 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 639 transitions. [2022-12-13 15:13:14,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 639 transitions. [2022-12-13 15:13:14,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:13:14,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 639 transitions. [2022-12-13 15:13:14,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:14,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:14,929 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:14,929 INFO L175 Difference]: Start difference. First operand has 57 places, 52 transitions, 189 flow. Second operand 5 states and 639 transitions. [2022-12-13 15:13:14,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 79 transitions, 438 flow [2022-12-13 15:13:14,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 79 transitions, 411 flow, removed 7 selfloop flow, removed 2 redundant places. [2022-12-13 15:13:14,933 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 210 flow [2022-12-13 15:13:14,934 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=210, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2022-12-13 15:13:14,934 INFO L288 CegarLoopForPetriNet]: 61 programPoint places, -5 predicate places. [2022-12-13 15:13:14,935 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 210 flow [2022-12-13 15:13:14,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:14,935 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:13:14,935 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:13:14,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:13:14,935 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-12-13 15:13:14,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:13:14,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1671893228, now seen corresponding path program 1 times [2022-12-13 15:13:14,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:13:14,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242849111] [2022-12-13 15:13:14,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:13:14,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:13:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:13:15,046 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 15:13:15,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:13:15,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242849111] [2022-12-13 15:13:15,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242849111] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:13:15,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:13:15,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:13:15,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050010830] [2022-12-13 15:13:15,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:13:15,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:13:15,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:13:15,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:13:15,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:13:15,062 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 245 [2022-12-13 15:13:15,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 210 flow. Second operand has 5 states, 5 states have (on average 113.4) internal successors, (567), 5 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:15,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:13:15,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 245 [2022-12-13 15:13:15,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:13:16,147 INFO L130 PetriNetUnfolder]: 7591/10982 cut-off events. [2022-12-13 15:13:16,147 INFO L131 PetriNetUnfolder]: For 5371/5371 co-relation queries the response was YES. [2022-12-13 15:13:16,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31558 conditions, 10982 events. 7591/10982 cut-off events. For 5371/5371 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 62824 event pairs, 1978 based on Foata normal form. 0/8374 useless extension candidates. Maximal degree in co-relation 31547. Up to 7508 conditions per place. [2022-12-13 15:13:16,202 INFO L137 encePairwiseOnDemand]: 232/245 looper letters, 86 selfloop transitions, 17 changer transitions 0/108 dead transitions. [2022-12-13 15:13:16,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 108 transitions, 625 flow [2022-12-13 15:13:16,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:13:16,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:13:16,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 656 transitions. [2022-12-13 15:13:16,206 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5355102040816326 [2022-12-13 15:13:16,206 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 656 transitions. [2022-12-13 15:13:16,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 656 transitions. [2022-12-13 15:13:16,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:13:16,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 656 transitions. [2022-12-13 15:13:16,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 131.2) internal successors, (656), 5 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:16,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:16,210 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:16,210 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 210 flow. Second operand 5 states and 656 transitions. [2022-12-13 15:13:16,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 108 transitions, 625 flow [2022-12-13 15:13:16,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 108 transitions, 619 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:13:16,215 INFO L231 Difference]: Finished difference. Result has 60 places, 60 transitions, 310 flow [2022-12-13 15:13:16,215 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=310, PETRI_PLACES=60, PETRI_TRANSITIONS=60} [2022-12-13 15:13:16,215 INFO L288 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2022-12-13 15:13:16,215 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 60 transitions, 310 flow [2022-12-13 15:13:16,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.4) internal successors, (567), 5 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:16,216 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:13:16,216 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:13:16,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:13:16,216 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-12-13 15:13:16,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:13:16,217 INFO L85 PathProgramCache]: Analyzing trace with hash -187596694, now seen corresponding path program 1 times [2022-12-13 15:13:16,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:13:16,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457041959] [2022-12-13 15:13:16,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:13:16,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:13:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:13:16,318 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 15:13:16,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:13:16,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457041959] [2022-12-13 15:13:16,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457041959] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:13:16,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:13:16,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:13:16,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696737057] [2022-12-13 15:13:16,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:13:16,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:13:16,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:13:16,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:13:16,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:13:16,325 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 245 [2022-12-13 15:13:16,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 60 transitions, 310 flow. Second operand has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:16,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:13:16,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 245 [2022-12-13 15:13:16,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:13:16,901 INFO L130 PetriNetUnfolder]: 5641/8478 cut-off events. [2022-12-13 15:13:16,902 INFO L131 PetriNetUnfolder]: For 11400/11400 co-relation queries the response was YES. [2022-12-13 15:13:16,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27838 conditions, 8478 events. 5641/8478 cut-off events. For 11400/11400 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 51999 event pairs, 874 based on Foata normal form. 0/7868 useless extension candidates. Maximal degree in co-relation 27825. Up to 6988 conditions per place. [2022-12-13 15:13:16,934 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 99 selfloop transitions, 13 changer transitions 0/117 dead transitions. [2022-12-13 15:13:16,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 117 transitions, 801 flow [2022-12-13 15:13:16,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:13:16,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:13:16,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 672 transitions. [2022-12-13 15:13:16,936 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5485714285714286 [2022-12-13 15:13:16,936 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 672 transitions. [2022-12-13 15:13:16,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 672 transitions. [2022-12-13 15:13:16,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:13:16,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 672 transitions. [2022-12-13 15:13:16,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 134.4) internal successors, (672), 5 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:16,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:16,939 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 245.0) internal successors, (1470), 6 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:16,939 INFO L175 Difference]: Start difference. First operand has 60 places, 60 transitions, 310 flow. Second operand 5 states and 672 transitions. [2022-12-13 15:13:16,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 117 transitions, 801 flow [2022-12-13 15:13:16,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 117 transitions, 778 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-12-13 15:13:16,946 INFO L231 Difference]: Finished difference. Result has 64 places, 64 transitions, 371 flow [2022-12-13 15:13:16,946 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=371, PETRI_PLACES=64, PETRI_TRANSITIONS=64} [2022-12-13 15:13:16,947 INFO L288 CegarLoopForPetriNet]: 61 programPoint places, 3 predicate places. [2022-12-13 15:13:16,947 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 64 transitions, 371 flow [2022-12-13 15:13:16,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:16,948 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:13:16,948 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:13:16,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:13:16,948 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-12-13 15:13:16,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:13:16,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1626612028, now seen corresponding path program 1 times [2022-12-13 15:13:16,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:13:16,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117617686] [2022-12-13 15:13:16,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:13:16,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:13:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:13:17,026 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 15:13:17,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:13:17,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117617686] [2022-12-13 15:13:17,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117617686] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:13:17,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:13:17,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:13:17,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860164041] [2022-12-13 15:13:17,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:13:17,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:13:17,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:13:17,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:13:17,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:13:17,033 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 245 [2022-12-13 15:13:17,034 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 371 flow. Second operand has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:17,034 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:13:17,034 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 245 [2022-12-13 15:13:17,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:13:17,504 INFO L130 PetriNetUnfolder]: 4159/6398 cut-off events. [2022-12-13 15:13:17,504 INFO L131 PetriNetUnfolder]: For 11341/11341 co-relation queries the response was YES. [2022-12-13 15:13:17,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22150 conditions, 6398 events. 4159/6398 cut-off events. For 11341/11341 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 38439 event pairs, 26 based on Foata normal form. 0/6382 useless extension candidates. Maximal degree in co-relation 22135. Up to 2576 conditions per place. [2022-12-13 15:13:17,528 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 122 selfloop transitions, 17 changer transitions 0/144 dead transitions. [2022-12-13 15:13:17,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 144 transitions, 1011 flow [2022-12-13 15:13:17,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:13:17,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:13:17,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 803 transitions. [2022-12-13 15:13:17,530 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5462585034013605 [2022-12-13 15:13:17,530 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 803 transitions. [2022-12-13 15:13:17,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 803 transitions. [2022-12-13 15:13:17,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:13:17,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 803 transitions. [2022-12-13 15:13:17,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:17,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:17,533 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:17,533 INFO L175 Difference]: Start difference. First operand has 64 places, 64 transitions, 371 flow. Second operand 6 states and 803 transitions. [2022-12-13 15:13:17,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 144 transitions, 1011 flow [2022-12-13 15:13:17,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 144 transitions, 977 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-12-13 15:13:17,540 INFO L231 Difference]: Finished difference. Result has 62 places, 60 transitions, 339 flow [2022-12-13 15:13:17,541 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=62, PETRI_TRANSITIONS=60} [2022-12-13 15:13:17,541 INFO L288 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2022-12-13 15:13:17,541 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 60 transitions, 339 flow [2022-12-13 15:13:17,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:17,542 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:13:17,542 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:13:17,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:13:17,542 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-12-13 15:13:17,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:13:17,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1142304024, now seen corresponding path program 1 times [2022-12-13 15:13:17,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:13:17,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285800765] [2022-12-13 15:13:17,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:13:17,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:13:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:13:17,642 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 15:13:17,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:13:17,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285800765] [2022-12-13 15:13:17,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285800765] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:13:17,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:13:17,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:13:17,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491424978] [2022-12-13 15:13:17,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:13:17,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:13:17,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:13:17,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:13:17,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:13:17,656 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 245 [2022-12-13 15:13:17,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 60 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 113.66666666666667) internal successors, (682), 6 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:17,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:13:17,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 245 [2022-12-13 15:13:17,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:13:18,120 INFO L130 PetriNetUnfolder]: 3109/4678 cut-off events. [2022-12-13 15:13:18,120 INFO L131 PetriNetUnfolder]: For 8558/8558 co-relation queries the response was YES. [2022-12-13 15:13:18,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15860 conditions, 4678 events. 3109/4678 cut-off events. For 8558/8558 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 24173 event pairs, 508 based on Foata normal form. 310/4936 useless extension candidates. Maximal degree in co-relation 15845. Up to 1526 conditions per place. [2022-12-13 15:13:18,141 INFO L137 encePairwiseOnDemand]: 232/245 looper letters, 105 selfloop transitions, 21 changer transitions 0/131 dead transitions. [2022-12-13 15:13:18,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 131 transitions, 938 flow [2022-12-13 15:13:18,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:13:18,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:13:18,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 772 transitions. [2022-12-13 15:13:18,143 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5251700680272109 [2022-12-13 15:13:18,143 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 772 transitions. [2022-12-13 15:13:18,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 772 transitions. [2022-12-13 15:13:18,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:13:18,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 772 transitions. [2022-12-13 15:13:18,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.66666666666666) internal successors, (772), 6 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:18,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:18,149 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:18,149 INFO L175 Difference]: Start difference. First operand has 62 places, 60 transitions, 339 flow. Second operand 6 states and 772 transitions. [2022-12-13 15:13:18,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 131 transitions, 938 flow [2022-12-13 15:13:18,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 131 transitions, 740 flow, removed 45 selfloop flow, removed 7 redundant places. [2022-12-13 15:13:18,160 INFO L231 Difference]: Finished difference. Result has 61 places, 64 transitions, 366 flow [2022-12-13 15:13:18,160 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=366, PETRI_PLACES=61, PETRI_TRANSITIONS=64} [2022-12-13 15:13:18,160 INFO L288 CegarLoopForPetriNet]: 61 programPoint places, 0 predicate places. [2022-12-13 15:13:18,161 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 64 transitions, 366 flow [2022-12-13 15:13:18,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.66666666666667) internal successors, (682), 6 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:18,161 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:13:18,161 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 15:13:18,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 15:13:18,162 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-12-13 15:13:18,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:13:18,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1468559290, now seen corresponding path program 1 times [2022-12-13 15:13:18,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:13:18,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849083532] [2022-12-13 15:13:18,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:13:18,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:13:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:13:18,345 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 15:13:18,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:13:18,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849083532] [2022-12-13 15:13:18,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849083532] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:13:18,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:13:18,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:13:18,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897053815] [2022-12-13 15:13:18,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:13:18,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:13:18,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:13:18,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:13:18,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:13:18,363 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 245 [2022-12-13 15:13:18,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 64 transitions, 366 flow. Second operand has 9 states, 9 states have (on average 113.66666666666667) internal successors, (1023), 9 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:18,365 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:13:18,365 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 245 [2022-12-13 15:13:18,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:13:19,167 INFO L130 PetriNetUnfolder]: 5041/7846 cut-off events. [2022-12-13 15:13:19,167 INFO L131 PetriNetUnfolder]: For 15094/15094 co-relation queries the response was YES. [2022-12-13 15:13:19,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24342 conditions, 7846 events. 5041/7846 cut-off events. For 15094/15094 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 47352 event pairs, 472 based on Foata normal form. 452/8242 useless extension candidates. Maximal degree in co-relation 24329. Up to 2153 conditions per place. [2022-12-13 15:13:19,212 INFO L137 encePairwiseOnDemand]: 232/245 looper letters, 154 selfloop transitions, 56 changer transitions 34/249 dead transitions. [2022-12-13 15:13:19,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 249 transitions, 1547 flow [2022-12-13 15:13:19,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 15:13:19,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 15:13:19,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1565 transitions. [2022-12-13 15:13:19,215 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.532312925170068 [2022-12-13 15:13:19,215 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1565 transitions. [2022-12-13 15:13:19,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1565 transitions. [2022-12-13 15:13:19,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:13:19,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1565 transitions. [2022-12-13 15:13:19,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 130.41666666666666) internal successors, (1565), 12 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:19,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 245.0) internal successors, (3185), 13 states have internal predecessors, (3185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:19,224 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 245.0) internal successors, (3185), 13 states have internal predecessors, (3185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:19,225 INFO L175 Difference]: Start difference. First operand has 61 places, 64 transitions, 366 flow. Second operand 12 states and 1565 transitions. [2022-12-13 15:13:19,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 249 transitions, 1547 flow [2022-12-13 15:13:19,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 249 transitions, 1443 flow, removed 38 selfloop flow, removed 3 redundant places. [2022-12-13 15:13:19,244 INFO L231 Difference]: Finished difference. Result has 74 places, 95 transitions, 731 flow [2022-12-13 15:13:19,244 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=731, PETRI_PLACES=74, PETRI_TRANSITIONS=95} [2022-12-13 15:13:19,244 INFO L288 CegarLoopForPetriNet]: 61 programPoint places, 13 predicate places. [2022-12-13 15:13:19,245 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 95 transitions, 731 flow [2022-12-13 15:13:19,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 113.66666666666667) internal successors, (1023), 9 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:19,245 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:13:19,245 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:13:19,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:13:19,246 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-12-13 15:13:19,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:13:19,246 INFO L85 PathProgramCache]: Analyzing trace with hash 466506546, now seen corresponding path program 1 times [2022-12-13 15:13:19,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:13:19,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930123228] [2022-12-13 15:13:19,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:13:19,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:13:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:13:19,420 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 15:13:19,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:13:19,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930123228] [2022-12-13 15:13:19,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930123228] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:13:19,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:13:19,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:13:19,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939139757] [2022-12-13 15:13:19,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:13:19,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 15:13:19,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:13:19,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 15:13:19,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:13:19,440 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 245 [2022-12-13 15:13:19,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 95 transitions, 731 flow. Second operand has 8 states, 8 states have (on average 112.5) internal successors, (900), 8 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:19,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:13:19,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 245 [2022-12-13 15:13:19,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:13:20,383 INFO L130 PetriNetUnfolder]: 4846/7872 cut-off events. [2022-12-13 15:13:20,383 INFO L131 PetriNetUnfolder]: For 26125/26285 co-relation queries the response was YES. [2022-12-13 15:13:20,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26956 conditions, 7872 events. 4846/7872 cut-off events. For 26125/26285 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 52124 event pairs, 684 based on Foata normal form. 84/7918 useless extension candidates. Maximal degree in co-relation 26938. Up to 2072 conditions per place. [2022-12-13 15:13:20,413 INFO L137 encePairwiseOnDemand]: 235/245 looper letters, 127 selfloop transitions, 102 changer transitions 0/234 dead transitions. [2022-12-13 15:13:20,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 234 transitions, 2022 flow [2022-12-13 15:13:20,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 15:13:20,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 15:13:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1375 transitions. [2022-12-13 15:13:20,415 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5102040816326531 [2022-12-13 15:13:20,415 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1375 transitions. [2022-12-13 15:13:20,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1375 transitions. [2022-12-13 15:13:20,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:13:20,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1375 transitions. [2022-12-13 15:13:20,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:20,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 245.0) internal successors, (2940), 12 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:20,420 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 245.0) internal successors, (2940), 12 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:20,420 INFO L175 Difference]: Start difference. First operand has 74 places, 95 transitions, 731 flow. Second operand 11 states and 1375 transitions. [2022-12-13 15:13:20,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 234 transitions, 2022 flow [2022-12-13 15:13:20,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 234 transitions, 1740 flow, removed 60 selfloop flow, removed 6 redundant places. [2022-12-13 15:13:20,513 INFO L231 Difference]: Finished difference. Result has 82 places, 149 transitions, 1356 flow [2022-12-13 15:13:20,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1356, PETRI_PLACES=82, PETRI_TRANSITIONS=149} [2022-12-13 15:13:20,513 INFO L288 CegarLoopForPetriNet]: 61 programPoint places, 21 predicate places. [2022-12-13 15:13:20,514 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 149 transitions, 1356 flow [2022-12-13 15:13:20,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 112.5) internal successors, (900), 8 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:20,514 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:13:20,514 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:13:20,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 15:13:20,514 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-12-13 15:13:20,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:13:20,515 INFO L85 PathProgramCache]: Analyzing trace with hash 242991710, now seen corresponding path program 2 times [2022-12-13 15:13:20,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:13:20,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460242841] [2022-12-13 15:13:20,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:13:20,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:13:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:13:20,625 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 15:13:20,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:13:20,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460242841] [2022-12-13 15:13:20,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460242841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:13:20,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:13:20,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:13:20,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083283807] [2022-12-13 15:13:20,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:13:20,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:13:20,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:13:20,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:13:20,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:13:20,632 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 245 [2022-12-13 15:13:20,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 149 transitions, 1356 flow. Second operand has 6 states, 6 states have (on average 119.33333333333333) internal successors, (716), 6 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:20,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:13:20,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 245 [2022-12-13 15:13:20,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:13:21,303 INFO L130 PetriNetUnfolder]: 4814/7525 cut-off events. [2022-12-13 15:13:21,303 INFO L131 PetriNetUnfolder]: For 30515/30596 co-relation queries the response was YES. [2022-12-13 15:13:21,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28388 conditions, 7525 events. 4814/7525 cut-off events. For 30515/30596 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 45832 event pairs, 1140 based on Foata normal form. 40/7526 useless extension candidates. Maximal degree in co-relation 28367. Up to 2792 conditions per place. [2022-12-13 15:13:21,320 INFO L137 encePairwiseOnDemand]: 236/245 looper letters, 0 selfloop transitions, 0 changer transitions 193/193 dead transitions. [2022-12-13 15:13:21,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 193 transitions, 1903 flow [2022-12-13 15:13:21,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:13:21,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:13:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 780 transitions. [2022-12-13 15:13:21,321 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5306122448979592 [2022-12-13 15:13:21,321 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 780 transitions. [2022-12-13 15:13:21,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 780 transitions. [2022-12-13 15:13:21,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:13:21,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 780 transitions. [2022-12-13 15:13:21,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:21,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:21,324 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 245.0) internal successors, (1715), 7 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:21,324 INFO L175 Difference]: Start difference. First operand has 82 places, 149 transitions, 1356 flow. Second operand 6 states and 780 transitions. [2022-12-13 15:13:21,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 193 transitions, 1903 flow [2022-12-13 15:13:21,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 193 transitions, 1730 flow, removed 7 selfloop flow, removed 8 redundant places. [2022-12-13 15:13:21,494 INFO L231 Difference]: Finished difference. Result has 75 places, 0 transitions, 0 flow [2022-12-13 15:13:21,494 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=1111, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=75, PETRI_TRANSITIONS=0} [2022-12-13 15:13:21,494 INFO L288 CegarLoopForPetriNet]: 61 programPoint places, 14 predicate places. [2022-12-13 15:13:21,494 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 0 transitions, 0 flow [2022-12-13 15:13:21,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.33333333333333) internal successors, (716), 6 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:21,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 36 remaining) [2022-12-13 15:13:21,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 36 remaining) [2022-12-13 15:13:21,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 36 remaining) [2022-12-13 15:13:21,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 36 remaining) [2022-12-13 15:13:21,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 36 remaining) [2022-12-13 15:13:21,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 36 remaining) [2022-12-13 15:13:21,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 36 remaining) [2022-12-13 15:13:21,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 36 remaining) [2022-12-13 15:13:21,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 36 remaining) [2022-12-13 15:13:21,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 36 remaining) [2022-12-13 15:13:21,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 36 remaining) [2022-12-13 15:13:21,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 36 remaining) [2022-12-13 15:13:21,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 36 remaining) [2022-12-13 15:13:21,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 36 remaining) [2022-12-13 15:13:21,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 36 remaining) [2022-12-13 15:13:21,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 36 remaining) [2022-12-13 15:13:21,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 36 remaining) [2022-12-13 15:13:21,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 36 remaining) [2022-12-13 15:13:21,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 36 remaining) [2022-12-13 15:13:21,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 36 remaining) [2022-12-13 15:13:21,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 36 remaining) [2022-12-13 15:13:21,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 36 remaining) [2022-12-13 15:13:21,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 36 remaining) [2022-12-13 15:13:21,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 36 remaining) [2022-12-13 15:13:21,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 36 remaining) [2022-12-13 15:13:21,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 36 remaining) [2022-12-13 15:13:21,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 36 remaining) [2022-12-13 15:13:21,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 36 remaining) [2022-12-13 15:13:21,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 36 remaining) [2022-12-13 15:13:21,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 36 remaining) [2022-12-13 15:13:21,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 36 remaining) [2022-12-13 15:13:21,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 36 remaining) [2022-12-13 15:13:21,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 36 remaining) [2022-12-13 15:13:21,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 36 remaining) [2022-12-13 15:13:21,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 36 remaining) [2022-12-13 15:13:21,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 36 remaining) [2022-12-13 15:13:21,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 15:13:21,499 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:13:21,503 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:13:21,503 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:13:21,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:13:21 BasicIcfg [2022-12-13 15:13:21,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:13:21,505 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:13:21,505 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:13:21,506 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:13:21,506 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:13:03" (3/4) ... [2022-12-13 15:13:21,508 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 15:13:21,511 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 15:13:21,511 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 15:13:21,511 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-13 15:13:21,511 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-12-13 15:13:21,514 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-12-13 15:13:21,514 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 15:13:21,514 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 15:13:21,514 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 15:13:21,536 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:13:21,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:13:21,537 INFO L158 Benchmark]: Toolchain (without parser) took 19097.16ms. Allocated memory was 167.8MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 131.2MB in the beginning and 792.2MB in the end (delta: -661.0MB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-12-13 15:13:21,537 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory was 141.9MB in the beginning and 141.7MB in the end (delta: 184.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:13:21,537 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.17ms. Allocated memory is still 167.8MB. Free memory was 131.2MB in the beginning and 116.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 15:13:21,537 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.65ms. Allocated memory is still 167.8MB. Free memory was 116.0MB in the beginning and 113.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:13:21,538 INFO L158 Benchmark]: Boogie Preprocessor took 24.51ms. Allocated memory is still 167.8MB. Free memory was 113.9MB in the beginning and 112.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:13:21,538 INFO L158 Benchmark]: RCFGBuilder took 459.20ms. Allocated memory is still 167.8MB. Free memory was 112.3MB in the beginning and 83.5MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 15:13:21,538 INFO L158 Benchmark]: TraceAbstraction took 18359.02ms. Allocated memory was 167.8MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 82.9MB in the beginning and 795.3MB in the end (delta: -712.4MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-12-13 15:13:21,538 INFO L158 Benchmark]: Witness Printer took 31.10ms. Allocated memory is still 2.2GB. Free memory was 795.3MB in the beginning and 792.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 15:13:21,539 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory was 141.9MB in the beginning and 141.7MB in the end (delta: 184.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.17ms. Allocated memory is still 167.8MB. Free memory was 131.2MB in the beginning and 116.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.65ms. Allocated memory is still 167.8MB. Free memory was 116.0MB in the beginning and 113.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.51ms. Allocated memory is still 167.8MB. Free memory was 113.9MB in the beginning and 112.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.20ms. Allocated memory is still 167.8MB. Free memory was 112.3MB in the beginning and 83.5MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 18359.02ms. Allocated memory was 167.8MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 82.9MB in the beginning and 795.3MB in the end (delta: -712.4MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 31.10ms. Allocated memory is still 2.2GB. Free memory was 795.3MB in the beginning and 792.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 142 PlacesBefore, 61 PlacesAfterwards, 130 TransitionsBefore, 48 TransitionsAfterwards, 2622 CoEnabledTransitionPairs, 7 FixpointIterations, 57 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 88 TotalNumberOfCompositions, 14421 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4738, independent: 4380, independent conditional: 0, independent unconditional: 4380, dependent: 358, dependent conditional: 0, dependent unconditional: 358, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1039, independent: 989, independent conditional: 0, independent unconditional: 989, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4738, independent: 3391, independent conditional: 0, independent unconditional: 3391, dependent: 308, dependent conditional: 0, dependent unconditional: 308, unknown: 1039, unknown conditional: 0, unknown unconditional: 1039] , Statistics on independence cache: Total cache size (in pairs): 312, Positive cache size: 289, Positive conditional cache size: 0, Positive unconditional cache size: 289, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 104]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 114]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 205 locations, 36 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: 18.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 946 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 884 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 223 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2091 IncrementalHoareTripleChecker+Invalid, 2314 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 223 mSolverCounterUnsat, 29 mSDtfsCounter, 2091 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1356occurred in iteration=10, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 440 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 15:13:21,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e611454-7f47-4ae6-bbfe-b969331a3000/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