./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe014_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe014_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R --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 9b910ee0748a7f7121f7d4562c55923dd0d235550d07c5b976ef4d5cc3d7332e --- 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-38b53e6 [2022-11-25 15:38:09,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:38:09,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:38:09,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:38:09,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:38:09,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:38:09,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:38:09,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:38:09,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:38:09,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:38:09,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:38:09,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:38:09,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:38:09,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:38:09,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:38:09,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:38:09,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:38:09,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:38:09,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:38:09,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:38:09,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:38:09,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:38:09,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:38:09,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:38:10,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:38:10,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:38:10,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:38:10,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:38:10,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:38:10,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:38:10,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:38:10,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:38:10,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:38:10,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:38:10,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:38:10,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:38:10,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:38:10,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:38:10,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:38:10,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:38:10,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:38:10,023 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 15:38:10,068 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:38:10,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:38:10,069 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:38:10,069 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:38:10,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:38:10,071 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:38:10,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:38:10,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:38:10,072 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:38:10,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:38:10,073 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:38:10,073 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:38:10,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:38:10,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:38:10,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:38:10,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:38:10,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:38:10,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:38:10,074 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:38:10,075 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:38:10,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:38:10,075 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:38:10,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:38:10,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:38:10,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:38:10,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:38:10,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:38:10,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:38:10,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:38:10,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:38:10,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:38:10,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:38:10,078 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:38:10,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:38:10,078 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:38:10,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:38:10,078 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_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b910ee0748a7f7121f7d4562c55923dd0d235550d07c5b976ef4d5cc3d7332e [2022-11-25 15:38:10,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:38:10,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:38:10,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:38:10,415 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:38:10,416 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:38:10,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/safe014_power.opt.i [2022-11-25 15:38:13,559 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:38:13,901 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:38:13,908 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/sv-benchmarks/c/pthread-wmm/safe014_power.opt.i [2022-11-25 15:38:13,931 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/data/754c62487/7fe717cc2d874ebc8b503b6235959e25/FLAG30decbae5 [2022-11-25 15:38:13,948 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/data/754c62487/7fe717cc2d874ebc8b503b6235959e25 [2022-11-25 15:38:13,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:38:13,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:38:13,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:38:13,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:38:13,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:38:13,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:38:13" (1/1) ... [2022-11-25 15:38:13,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d0b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:13, skipping insertion in model container [2022-11-25 15:38:13,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:38:13" (1/1) ... [2022-11-25 15:38:13,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:38:14,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:38:14,269 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_a43c8c8c-556b-44db-89f6-0d10526df946/sv-benchmarks/c/pthread-wmm/safe014_power.opt.i[994,1007] [2022-11-25 15:38:14,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:38:14,481 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:38:14,494 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_a43c8c8c-556b-44db-89f6-0d10526df946/sv-benchmarks/c/pthread-wmm/safe014_power.opt.i[994,1007] [2022-11-25 15:38:14,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:38:14,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:38:14,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:38:14,594 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:38:14,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:14 WrapperNode [2022-11-25 15:38:14,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:38:14,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:38:14,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:38:14,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:38:14,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:14" (1/1) ... [2022-11-25 15:38:14,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:14" (1/1) ... [2022-11-25 15:38:14,690 INFO L138 Inliner]: procedures = 176, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 182 [2022-11-25 15:38:14,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:38:14,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:38:14,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:38:14,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:38:14,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:14" (1/1) ... [2022-11-25 15:38:14,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:14" (1/1) ... [2022-11-25 15:38:14,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:14" (1/1) ... [2022-11-25 15:38:14,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:14" (1/1) ... [2022-11-25 15:38:14,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:14" (1/1) ... [2022-11-25 15:38:14,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:14" (1/1) ... [2022-11-25 15:38:14,754 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:14" (1/1) ... [2022-11-25 15:38:14,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:14" (1/1) ... [2022-11-25 15:38:14,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:38:14,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:38:14,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:38:14,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:38:14,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:14" (1/1) ... [2022-11-25 15:38:14,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:38:14,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:38:14,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:38:14,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:38:14,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:38:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:38:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 15:38:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:38:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:38:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:38:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 15:38:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 15:38:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 15:38:14,860 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 15:38:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 15:38:14,861 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 15:38:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:38:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 15:38:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:38:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:38:14,864 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 15:38:15,089 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:38:15,091 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:38:15,620 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:38:16,049 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:38:16,050 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:38:16,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:38:16 BoogieIcfgContainer [2022-11-25 15:38:16,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:38:16,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:38:16,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:38:16,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:38:16,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:38:13" (1/3) ... [2022-11-25 15:38:16,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d059a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:38:16, skipping insertion in model container [2022-11-25 15:38:16,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:38:14" (2/3) ... [2022-11-25 15:38:16,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d059a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:38:16, skipping insertion in model container [2022-11-25 15:38:16,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:38:16" (3/3) ... [2022-11-25 15:38:16,066 INFO L112 eAbstractionObserver]: Analyzing ICFG safe014_power.opt.i [2022-11-25 15:38:16,076 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 15:38:16,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:38:16,088 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 15:38:16,088 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 15:38:16,176 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 15:38:16,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 136 transitions, 287 flow [2022-11-25 15:38:16,339 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2022-11-25 15:38:16,340 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:38:16,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-25 15:38:16,347 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 136 transitions, 287 flow [2022-11-25 15:38:16,355 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 133 transitions, 275 flow [2022-11-25 15:38:16,360 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 15:38:16,386 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 133 transitions, 275 flow [2022-11-25 15:38:16,397 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 133 transitions, 275 flow [2022-11-25 15:38:16,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 133 transitions, 275 flow [2022-11-25 15:38:16,464 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2022-11-25 15:38:16,465 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:38:16,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-25 15:38:16,468 INFO L119 LiptonReduction]: Number of co-enabled transitions 2352 [2022-11-25 15:38:28,432 INFO L134 LiptonReduction]: Checked pairs total: 8112 [2022-11-25 15:38:28,433 INFO L136 LiptonReduction]: Total number of compositions: 123 [2022-11-25 15:38:28,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:38:28,455 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;@13d7d56d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:38:28,456 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-25 15:38:28,472 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-11-25 15:38:28,472 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:38:28,472 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:38:28,473 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-11-25 15:38:28,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 15:38:28,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:28,479 INFO L85 PathProgramCache]: Analyzing trace with hash 24321927, now seen corresponding path program 1 times [2022-11-25 15:38:28,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:28,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915734665] [2022-11-25 15:38:28,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:28,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:28,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:28,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:28,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915734665] [2022-11-25 15:38:28,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915734665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:28,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:38:28,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:38:28,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990397087] [2022-11-25 15:38:28,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:28,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:38:28,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:28,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:38:28,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:38:28,998 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 259 [2022-11-25 15:38:29,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:29,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:38:29,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 259 [2022-11-25 15:38:29,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:38:29,433 INFO L130 PetriNetUnfolder]: 558/928 cut-off events. [2022-11-25 15:38:29,433 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-25 15:38:29,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1890 conditions, 928 events. 558/928 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4519 event pairs, 276 based on Foata normal form. 42/803 useless extension candidates. Maximal degree in co-relation 1879. Up to 872 conditions per place. [2022-11-25 15:38:29,448 INFO L137 encePairwiseOnDemand]: 247/259 looper letters, 31 selfloop transitions, 4 changer transitions 0/37 dead transitions. [2022-11-25 15:38:29,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 37 transitions, 159 flow [2022-11-25 15:38:29,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:38:29,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 15:38:29,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2022-11-25 15:38:29,472 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5006435006435006 [2022-11-25 15:38:29,473 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2022-11-25 15:38:29,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2022-11-25 15:38:29,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:38:29,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2022-11-25 15:38:29,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:29,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:29,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:29,498 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 3 states and 389 transitions. [2022-11-25 15:38:29,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 37 transitions, 159 flow [2022-11-25 15:38:29,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 37 transitions, 154 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 15:38:29,504 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 94 flow [2022-11-25 15:38:29,507 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2022-11-25 15:38:29,512 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2022-11-25 15:38:29,512 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 94 flow [2022-11-25 15:38:29,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:29,514 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:38:29,514 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:29,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:38:29,515 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 15:38:29,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:29,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1742341826, now seen corresponding path program 1 times [2022-11-25 15:38:29,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:29,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963819183] [2022-11-25 15:38:29,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:29,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:29,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:29,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:29,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963819183] [2022-11-25 15:38:29,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963819183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:29,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:38:29,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:38:29,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826802297] [2022-11-25 15:38:29,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:29,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:38:29,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:29,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:38:29,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:38:29,683 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 259 [2022-11-25 15:38:29,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:29,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:38:29,684 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 259 [2022-11-25 15:38:29,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:38:29,976 INFO L130 PetriNetUnfolder]: 370/624 cut-off events. [2022-11-25 15:38:29,977 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2022-11-25 15:38:29,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1597 conditions, 624 events. 370/624 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2783 event pairs, 144 based on Foata normal form. 104/621 useless extension candidates. Maximal degree in co-relation 1586. Up to 567 conditions per place. [2022-11-25 15:38:29,982 INFO L137 encePairwiseOnDemand]: 252/259 looper letters, 28 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2022-11-25 15:38:29,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 34 transitions, 168 flow [2022-11-25 15:38:29,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:38:29,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 15:38:29,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 495 transitions. [2022-11-25 15:38:29,985 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4777992277992278 [2022-11-25 15:38:29,985 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 495 transitions. [2022-11-25 15:38:29,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 495 transitions. [2022-11-25 15:38:29,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:38:29,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 495 transitions. [2022-11-25 15:38:29,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:29,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:29,992 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:29,992 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 94 flow. Second operand 4 states and 495 transitions. [2022-11-25 15:38:29,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 34 transitions, 168 flow [2022-11-25 15:38:29,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 34 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 15:38:29,995 INFO L231 Difference]: Finished difference. Result has 34 places, 25 transitions, 86 flow [2022-11-25 15:38:29,995 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2022-11-25 15:38:29,996 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2022-11-25 15:38:29,997 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 86 flow [2022-11-25 15:38:29,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:29,997 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:38:29,997 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:29,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:38:29,998 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 15:38:29,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:29,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1821978797, now seen corresponding path program 1 times [2022-11-25 15:38:29,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:29,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328047901] [2022-11-25 15:38:30,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:30,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:30,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:30,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:30,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328047901] [2022-11-25 15:38:30,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328047901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:30,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:38:30,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:38:30,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428124624] [2022-11-25 15:38:30,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:30,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:38:30,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:30,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:38:30,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:38:30,121 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 259 [2022-11-25 15:38:30,122 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:30,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:38:30,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 259 [2022-11-25 15:38:30,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:38:30,294 INFO L130 PetriNetUnfolder]: 113/227 cut-off events. [2022-11-25 15:38:30,294 INFO L131 PetriNetUnfolder]: For 88/88 co-relation queries the response was YES. [2022-11-25 15:38:30,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 227 events. 113/227 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 759 event pairs, 35 based on Foata normal form. 20/232 useless extension candidates. Maximal degree in co-relation 585. Up to 103 conditions per place. [2022-11-25 15:38:30,296 INFO L137 encePairwiseOnDemand]: 251/259 looper letters, 32 selfloop transitions, 7 changer transitions 3/44 dead transitions. [2022-11-25 15:38:30,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 44 transitions, 220 flow [2022-11-25 15:38:30,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:38:30,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 15:38:30,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 506 transitions. [2022-11-25 15:38:30,298 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48841698841698844 [2022-11-25 15:38:30,298 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 506 transitions. [2022-11-25 15:38:30,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 506 transitions. [2022-11-25 15:38:30,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:38:30,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 506 transitions. [2022-11-25 15:38:30,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.5) internal successors, (506), 4 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:30,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:30,303 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 259.0) internal successors, (1295), 5 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:30,304 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 86 flow. Second operand 4 states and 506 transitions. [2022-11-25 15:38:30,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 44 transitions, 220 flow [2022-11-25 15:38:30,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 44 transitions, 215 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 15:38:30,305 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 109 flow [2022-11-25 15:38:30,306 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2022-11-25 15:38:30,306 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2022-11-25 15:38:30,307 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 109 flow [2022-11-25 15:38:30,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:30,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:38:30,307 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:38:30,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:38:30,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-25 15:38:30,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:38:30,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1929110543, now seen corresponding path program 1 times [2022-11-25 15:38:30,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:38:30,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154278447] [2022-11-25 15:38:30,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:38:30,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:38:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:38:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:38:30,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:38:30,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154278447] [2022-11-25 15:38:30,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154278447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:38:30,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:38:30,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:38:30,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495259599] [2022-11-25 15:38:30,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:38:30,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:38:30,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:38:30,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:38:30,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:38:30,469 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 259 [2022-11-25 15:38:30,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 109 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) [2022-11-25 15:38:30,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:38:30,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 259 [2022-11-25 15:38:30,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:38:30,620 INFO L130 PetriNetUnfolder]: 78/152 cut-off events. [2022-11-25 15:38:30,620 INFO L131 PetriNetUnfolder]: For 168/168 co-relation queries the response was YES. [2022-11-25 15:38:30,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 152 events. 78/152 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 476 event pairs, 23 based on Foata normal form. 11/160 useless extension candidates. Maximal degree in co-relation 469. Up to 68 conditions per place. [2022-11-25 15:38:30,621 INFO L137 encePairwiseOnDemand]: 251/259 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2022-11-25 15:38:30,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 35 transitions, 185 flow [2022-11-25 15:38:30,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:38:30,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 15:38:30,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 612 transitions. [2022-11-25 15:38:30,624 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4725868725868726 [2022-11-25 15:38:30,624 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 612 transitions. [2022-11-25 15:38:30,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 612 transitions. [2022-11-25 15:38:30,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:38:30,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 612 transitions. [2022-11-25 15:38:30,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.4) internal successors, (612), 5 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:30,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 259.0) internal successors, (1554), 6 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:30,631 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 259.0) internal successors, (1554), 6 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:38:30,631 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 109 flow. Second operand 5 states and 612 transitions. [2022-11-25 15:38:30,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 35 transitions, 185 flow [2022-11-25 15:38:30,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 161 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-11-25 15:38:30,636 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2022-11-25 15:38:30,636 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2022-11-25 15:38:30,637 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -5 predicate places. [2022-11-25 15:38:30,638 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2022-11-25 15:38:30,638 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) [2022-11-25 15:38:30,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-25 15:38:30,645 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-25 15:38:30,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-25 15:38:30,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-25 15:38:30,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-25 15:38:30,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-25 15:38:30,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-25 15:38:30,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-25 15:38:30,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-25 15:38:30,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-25 15:38:30,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-25 15:38:30,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-25 15:38:30,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-25 15:38:30,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-25 15:38:30,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-25 15:38:30,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:38:30,649 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 15:38:30,655 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 15:38:30,656 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:38:30,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:38:30 BasicIcfg [2022-11-25 15:38:30,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:38:30,664 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:38:30,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:38:30,665 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:38:30,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:38:16" (3/4) ... [2022-11-25 15:38:30,668 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 15:38:30,673 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-25 15:38:30,673 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-25 15:38:30,673 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-25 15:38:30,681 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2022-11-25 15:38:30,681 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-25 15:38:30,682 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 15:38:30,682 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 15:38:30,739 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:38:30,740 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:38:30,740 INFO L158 Benchmark]: Toolchain (without parser) took 16788.04ms. Allocated memory was 169.9MB in the beginning and 270.5MB in the end (delta: 100.7MB). Free memory was 138.0MB in the beginning and 219.9MB in the end (delta: -82.0MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-11-25 15:38:30,740 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 169.9MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:38:30,741 INFO L158 Benchmark]: CACSL2BoogieTranslator took 638.49ms. Allocated memory is still 169.9MB. Free memory was 137.3MB in the beginning and 110.7MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 15:38:30,741 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.89ms. Allocated memory is still 169.9MB. Free memory was 110.7MB in the beginning and 108.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:38:30,741 INFO L158 Benchmark]: Boogie Preprocessor took 76.47ms. Allocated memory is still 169.9MB. Free memory was 108.0MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:38:30,742 INFO L158 Benchmark]: RCFGBuilder took 1283.86ms. Allocated memory is still 169.9MB. Free memory was 105.9MB in the beginning and 113.3MB in the end (delta: -7.3MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-25 15:38:30,742 INFO L158 Benchmark]: TraceAbstraction took 14607.79ms. Allocated memory was 169.9MB in the beginning and 270.5MB in the end (delta: 100.7MB). Free memory was 112.4MB in the beginning and 224.1MB in the end (delta: -111.8MB). Peak memory consumption was 136.1MB. Max. memory is 16.1GB. [2022-11-25 15:38:30,743 INFO L158 Benchmark]: Witness Printer took 75.23ms. Allocated memory is still 270.5MB. Free memory was 224.1MB in the beginning and 219.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 15:38:30,748 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 169.9MB. Free memory is still 143.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 638.49ms. Allocated memory is still 169.9MB. Free memory was 137.3MB in the beginning and 110.7MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.89ms. Allocated memory is still 169.9MB. Free memory was 110.7MB in the beginning and 108.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.47ms. Allocated memory is still 169.9MB. Free memory was 108.0MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1283.86ms. Allocated memory is still 169.9MB. Free memory was 105.9MB in the beginning and 113.3MB in the end (delta: -7.3MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 14607.79ms. Allocated memory was 169.9MB in the beginning and 270.5MB in the end (delta: 100.7MB). Free memory was 112.4MB in the beginning and 224.1MB in the end (delta: -111.8MB). Peak memory consumption was 136.1MB. Max. memory is 16.1GB. * Witness Printer took 75.23ms. Allocated memory is still 270.5MB. Free memory was 224.1MB in the beginning and 219.9MB in the end (delta: 4.2MB). 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: 12.0s, 141 PlacesBefore, 35 PlacesAfterwards, 133 TransitionsBefore, 26 TransitionsAfterwards, 2352 CoEnabledTransitionPairs, 8 FixpointIterations, 60 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 123 TotalNumberOfCompositions, 8112 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3336, independent: 3059, independent conditional: 0, independent unconditional: 3059, dependent: 277, dependent conditional: 0, dependent unconditional: 277, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1685, independent: 1622, independent conditional: 0, independent unconditional: 1622, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1685, independent: 1587, independent conditional: 0, independent unconditional: 1587, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 98, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 873, independent: 91, independent conditional: 0, independent unconditional: 91, dependent: 782, dependent conditional: 0, dependent unconditional: 782, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3336, independent: 1437, independent conditional: 0, independent unconditional: 1437, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 1685, unknown conditional: 0, unknown unconditional: 1685] , Statistics on independence cache: Total cache size (in pairs): 162, Positive cache size: 139, Positive conditional cache size: 0, Positive unconditional cache size: 139, 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: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 800]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 800]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 829]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 829]: 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 7 procedures, 166 locations, 15 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: 14.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 95 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 210 IncrementalHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 7 mSDtfsCounter, 210 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 0.5s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 15:38:30,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a43c8c8c-556b-44db-89f6-0d10526df946/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE