./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/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_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/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_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/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 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --- 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 11:14:01,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:14:01,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:14:01,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:14:01,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:14:01,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:14:01,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:14:01,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:14:01,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:14:01,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:14:01,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:14:01,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:14:01,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:14:01,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:14:01,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:14:01,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:14:01,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:14:01,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:14:01,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:14:01,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:14:01,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:14:01,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:14:01,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:14:01,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:14:01,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:14:01,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:14:01,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:14:01,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:14:01,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:14:01,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:14:01,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:14:01,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:14:01,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:14:01,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:14:01,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:14:01,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:14:01,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:14:01,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:14:01,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:14:01,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:14:01,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:14:01,634 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 11:14:01,655 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:14:01,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:14:01,656 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:14:01,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:14:01,656 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:14:01,657 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:14:01,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:14:01,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:14:01,657 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:14:01,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:14:01,658 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:14:01,658 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:14:01,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:14:01,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:14:01,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:14:01,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:14:01,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:14:01,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:14:01,659 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:14:01,659 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:14:01,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:14:01,659 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:14:01,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:14:01,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:14:01,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:14:01,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:14:01,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:14:01,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:14:01,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:14:01,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:14:01,660 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:14:01,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:14:01,661 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:14:01,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:14:01,661 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:14:01,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:14:01,661 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:14:01,661 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_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f [2022-12-13 11:14:01,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:14:01,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:14:01,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:14:01,865 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:14:01,866 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:14:01,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 11:14:04,407 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:14:04,585 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:14:04,585 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 11:14:04,594 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/bin/uautomizer-uyxdKDjOR8/data/e9876dbe2/fcd464c27cd641f0bc82df030895e3e4/FLAGa00710f7e [2022-12-13 11:14:04,605 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/bin/uautomizer-uyxdKDjOR8/data/e9876dbe2/fcd464c27cd641f0bc82df030895e3e4 [2022-12-13 11:14:04,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:14:04,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:14:04,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:14:04,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:14:04,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:14:04,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:14:04" (1/1) ... [2022-12-13 11:14:04,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d34f436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:04, skipping insertion in model container [2022-12-13 11:14:04,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:14:04" (1/1) ... [2022-12-13 11:14:04,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:14:04,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:14:04,754 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_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-13 11:14:04,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:14:04,863 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:14:04,872 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_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-13 11:14:04,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:14:04,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:14:04,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:14:04,919 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:14:04,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:04 WrapperNode [2022-12-13 11:14:04,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:14:04,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:14:04,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:14:04,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:14:04,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:04" (1/1) ... [2022-12-13 11:14:04,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:04" (1/1) ... [2022-12-13 11:14:04,948 INFO L138 Inliner]: procedures = 177, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2022-12-13 11:14:04,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:14:04,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:14:04,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:14:04,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:14:04,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:04" (1/1) ... [2022-12-13 11:14:04,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:04" (1/1) ... [2022-12-13 11:14:04,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:04" (1/1) ... [2022-12-13 11:14:04,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:04" (1/1) ... [2022-12-13 11:14:04,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:04" (1/1) ... [2022-12-13 11:14:04,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:04" (1/1) ... [2022-12-13 11:14:04,964 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:04" (1/1) ... [2022-12-13 11:14:04,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:04" (1/1) ... [2022-12-13 11:14:04,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:14:04,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:14:04,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:14:04,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:14:04,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:04" (1/1) ... [2022-12-13 11:14:04,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:14:04,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:14:04,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:14:04,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:14:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:14:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 11:14:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:14:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:14:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:14:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 11:14:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 11:14:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 11:14:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 11:14:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 11:14:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 11:14:05,022 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 11:14:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 11:14:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:14:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 11:14:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:14:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:14:05,024 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 11:14:05,124 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:14:05,125 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:14:05,286 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:14:05,311 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:14:05,312 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:14:05,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:14:05 BoogieIcfgContainer [2022-12-13 11:14:05,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:14:05,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:14:05,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:14:05,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:14:05,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:14:04" (1/3) ... [2022-12-13 11:14:05,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a047b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:14:05, skipping insertion in model container [2022-12-13 11:14:05,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:04" (2/3) ... [2022-12-13 11:14:05,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a047b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:14:05, skipping insertion in model container [2022-12-13 11:14:05,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:14:05" (3/3) ... [2022-12-13 11:14:05,325 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 11:14:05,331 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 11:14:05,338 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:14:05,338 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 11:14:05,338 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:14:05,380 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 11:14:05,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 118 transitions, 256 flow [2022-12-13 11:14:05,440 INFO L130 PetriNetUnfolder]: 2/114 cut-off events. [2022-12-13 11:14:05,440 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:14:05,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 114 events. 2/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2022-12-13 11:14:05,445 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 118 transitions, 256 flow [2022-12-13 11:14:05,447 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 114 transitions, 240 flow [2022-12-13 11:14:05,450 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:14:05,457 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 114 transitions, 240 flow [2022-12-13 11:14:05,459 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 114 transitions, 240 flow [2022-12-13 11:14:05,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 125 places, 114 transitions, 240 flow [2022-12-13 11:14:05,479 INFO L130 PetriNetUnfolder]: 2/114 cut-off events. [2022-12-13 11:14:05,479 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:14:05,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 114 events. 2/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2022-12-13 11:14:05,481 INFO L119 LiptonReduction]: Number of co-enabled transitions 3552 [2022-12-13 11:14:07,525 INFO L134 LiptonReduction]: Checked pairs total: 9802 [2022-12-13 11:14:07,525 INFO L136 LiptonReduction]: Total number of compositions: 93 [2022-12-13 11:14:07,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:14:07,543 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;@3bff69a4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:14:07,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-12-13 11:14:07,545 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 11:14:07,545 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:14:07,545 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:14:07,546 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:14:07,546 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 11:14:07,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:14:07,549 INFO L85 PathProgramCache]: Analyzing trace with hash 398839722, now seen corresponding path program 1 times [2022-12-13 11:14:07,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:14:07,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825349181] [2022-12-13 11:14:07,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:14:07,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:14:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:14:07,703 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 11:14:07,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:14:07,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825349181] [2022-12-13 11:14:07,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825349181] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:14:07,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:14:07,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:14:07,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022826036] [2022-12-13 11:14:07,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:14:07,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:14:07,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:14:07,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:14:07,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:14:07,740 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 211 [2022-12-13 11:14:07,743 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:07,743 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:14:07,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 211 [2022-12-13 11:14:07,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:14:08,110 INFO L130 PetriNetUnfolder]: 3036/4379 cut-off events. [2022-12-13 11:14:08,110 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2022-12-13 11:14:08,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8919 conditions, 4379 events. 3036/4379 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 22080 event pairs, 999 based on Foata normal form. 0/2784 useless extension candidates. Maximal degree in co-relation 8907. Up to 4171 conditions per place. [2022-12-13 11:14:08,138 INFO L137 encePairwiseOnDemand]: 198/211 looper letters, 37 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2022-12-13 11:14:08,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 46 transitions, 197 flow [2022-12-13 11:14:08,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:14:08,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:14:08,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2022-12-13 11:14:08,148 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5434439178515008 [2022-12-13 11:14:08,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2022-12-13 11:14:08,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2022-12-13 11:14:08,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:14:08,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2022-12-13 11:14:08,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,158 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,160 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 72 flow. Second operand 3 states and 344 transitions. [2022-12-13 11:14:08,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 46 transitions, 197 flow [2022-12-13 11:14:08,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 46 transitions, 190 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 11:14:08,164 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 115 flow [2022-12-13 11:14:08,166 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2022-12-13 11:14:08,169 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2022-12-13 11:14:08,169 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 115 flow [2022-12-13 11:14:08,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,169 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:14:08,169 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:14:08,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:14:08,170 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 11:14:08,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:14:08,170 INFO L85 PathProgramCache]: Analyzing trace with hash 512018947, now seen corresponding path program 1 times [2022-12-13 11:14:08,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:14:08,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373142819] [2022-12-13 11:14:08,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:14:08,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:14:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:14:08,239 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 11:14:08,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:14:08,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373142819] [2022-12-13 11:14:08,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373142819] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:14:08,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:14:08,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:14:08,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409907930] [2022-12-13 11:14:08,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:14:08,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:14:08,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:14:08,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:14:08,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:14:08,248 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 211 [2022-12-13 11:14:08,249 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:14:08,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 211 [2022-12-13 11:14:08,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:14:08,472 INFO L130 PetriNetUnfolder]: 1540/2249 cut-off events. [2022-12-13 11:14:08,472 INFO L131 PetriNetUnfolder]: For 130/130 co-relation queries the response was YES. [2022-12-13 11:14:08,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5846 conditions, 2249 events. 1540/2249 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 10069 event pairs, 387 based on Foata normal form. 0/1744 useless extension candidates. Maximal degree in co-relation 5835. Up to 2040 conditions per place. [2022-12-13 11:14:08,483 INFO L137 encePairwiseOnDemand]: 202/211 looper letters, 33 selfloop transitions, 5 changer transitions 0/42 dead transitions. [2022-12-13 11:14:08,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 42 transitions, 205 flow [2022-12-13 11:14:08,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:14:08,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:14:08,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 434 transitions. [2022-12-13 11:14:08,485 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.514218009478673 [2022-12-13 11:14:08,485 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 434 transitions. [2022-12-13 11:14:08,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 434 transitions. [2022-12-13 11:14:08,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:14:08,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 434 transitions. [2022-12-13 11:14:08,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 211.0) internal successors, (1055), 5 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,488 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 211.0) internal successors, (1055), 5 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,488 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 115 flow. Second operand 4 states and 434 transitions. [2022-12-13 11:14:08,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 42 transitions, 205 flow [2022-12-13 11:14:08,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 42 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:14:08,489 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 104 flow [2022-12-13 11:14:08,490 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2022-12-13 11:14:08,490 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2022-12-13 11:14:08,490 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 104 flow [2022-12-13 11:14:08,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,490 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:14:08,491 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:14:08,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:14:08,491 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 11:14:08,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:14:08,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1009679504, now seen corresponding path program 1 times [2022-12-13 11:14:08,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:14:08,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573761574] [2022-12-13 11:14:08,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:14:08,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:14:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:14:08,551 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 11:14:08,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:14:08,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573761574] [2022-12-13 11:14:08,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573761574] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:14:08,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:14:08,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:14:08,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734651661] [2022-12-13 11:14:08,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:14:08,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:14:08,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:14:08,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:14:08,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:14:08,562 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 211 [2022-12-13 11:14:08,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:14:08,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 211 [2022-12-13 11:14:08,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:14:08,711 INFO L130 PetriNetUnfolder]: 868/1315 cut-off events. [2022-12-13 11:14:08,711 INFO L131 PetriNetUnfolder]: For 390/390 co-relation queries the response was YES. [2022-12-13 11:14:08,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3389 conditions, 1315 events. 868/1315 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5445 event pairs, 148 based on Foata normal form. 0/1174 useless extension candidates. Maximal degree in co-relation 3377. Up to 707 conditions per place. [2022-12-13 11:14:08,716 INFO L137 encePairwiseOnDemand]: 202/211 looper letters, 43 selfloop transitions, 9 changer transitions 0/56 dead transitions. [2022-12-13 11:14:08,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 56 transitions, 278 flow [2022-12-13 11:14:08,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:14:08,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:14:08,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 448 transitions. [2022-12-13 11:14:08,717 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5308056872037915 [2022-12-13 11:14:08,718 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 448 transitions. [2022-12-13 11:14:08,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 448 transitions. [2022-12-13 11:14:08,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:14:08,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 448 transitions. [2022-12-13 11:14:08,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 211.0) internal successors, (1055), 5 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,720 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 211.0) internal successors, (1055), 5 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,720 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 104 flow. Second operand 4 states and 448 transitions. [2022-12-13 11:14:08,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 56 transitions, 278 flow [2022-12-13 11:14:08,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 56 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 11:14:08,722 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 156 flow [2022-12-13 11:14:08,722 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2022-12-13 11:14:08,722 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2022-12-13 11:14:08,722 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 156 flow [2022-12-13 11:14:08,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,723 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:14:08,723 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:14:08,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:14:08,723 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 11:14:08,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:14:08,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1283544207, now seen corresponding path program 1 times [2022-12-13 11:14:08,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:14:08,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646976654] [2022-12-13 11:14:08,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:14:08,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:14:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:14:08,787 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 11:14:08,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:14:08,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646976654] [2022-12-13 11:14:08,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646976654] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:14:08,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:14:08,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:14:08,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917443358] [2022-12-13 11:14:08,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:14:08,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:14:08,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:14:08,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:14:08,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:14:08,795 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 211 [2022-12-13 11:14:08,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:14:08,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 211 [2022-12-13 11:14:08,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:14:08,949 INFO L130 PetriNetUnfolder]: 712/1063 cut-off events. [2022-12-13 11:14:08,949 INFO L131 PetriNetUnfolder]: For 780/780 co-relation queries the response was YES. [2022-12-13 11:14:08,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3306 conditions, 1063 events. 712/1063 cut-off events. For 780/780 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4083 event pairs, 115 based on Foata normal form. 0/1036 useless extension candidates. Maximal degree in co-relation 3293. Up to 405 conditions per place. [2022-12-13 11:14:08,954 INFO L137 encePairwiseOnDemand]: 202/211 looper letters, 47 selfloop transitions, 13 changer transitions 4/68 dead transitions. [2022-12-13 11:14:08,954 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 68 transitions, 380 flow [2022-12-13 11:14:08,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:14:08,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:14:08,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 558 transitions. [2022-12-13 11:14:08,956 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5289099526066351 [2022-12-13 11:14:08,956 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 558 transitions. [2022-12-13 11:14:08,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 558 transitions. [2022-12-13 11:14:08,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:14:08,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 558 transitions. [2022-12-13 11:14:08,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.6) internal successors, (558), 5 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,958 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,959 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 156 flow. Second operand 5 states and 558 transitions. [2022-12-13 11:14:08,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 68 transitions, 380 flow [2022-12-13 11:14:08,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 68 transitions, 362 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-13 11:14:08,961 INFO L231 Difference]: Finished difference. Result has 45 places, 34 transitions, 180 flow [2022-12-13 11:14:08,961 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=180, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2022-12-13 11:14:08,961 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2022-12-13 11:14:08,961 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 180 flow [2022-12-13 11:14:08,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:08,962 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:14:08,962 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] [2022-12-13 11:14:08,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:14:08,962 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-13 11:14:08,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:14:08,962 INFO L85 PathProgramCache]: Analyzing trace with hash 864797627, now seen corresponding path program 1 times [2022-12-13 11:14:08,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:14:08,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241605855] [2022-12-13 11:14:08,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:14:08,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:14:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:14:09,033 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 11:14:09,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:14:09,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241605855] [2022-12-13 11:14:09,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241605855] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:14:09,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:14:09,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:14:09,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712084302] [2022-12-13 11:14:09,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:14:09,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:14:09,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:14:09,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:14:09,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:14:09,043 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 211 [2022-12-13 11:14:09,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 180 flow. Second operand has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:09,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:14:09,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 211 [2022-12-13 11:14:09,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:14:09,209 INFO L130 PetriNetUnfolder]: 693/1029 cut-off events. [2022-12-13 11:14:09,209 INFO L131 PetriNetUnfolder]: For 1030/1030 co-relation queries the response was YES. [2022-12-13 11:14:09,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3305 conditions, 1029 events. 693/1029 cut-off events. For 1030/1030 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3982 event pairs, 115 based on Foata normal form. 12/1026 useless extension candidates. Maximal degree in co-relation 3291. Up to 400 conditions per place. [2022-12-13 11:14:09,213 INFO L137 encePairwiseOnDemand]: 202/211 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2022-12-13 11:14:09,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 60 transitions, 332 flow [2022-12-13 11:14:09,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:14:09,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:14:09,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 648 transitions. [2022-12-13 11:14:09,215 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5118483412322274 [2022-12-13 11:14:09,215 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 648 transitions. [2022-12-13 11:14:09,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 648 transitions. [2022-12-13 11:14:09,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:14:09,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 648 transitions. [2022-12-13 11:14:09,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 108.0) internal successors, (648), 6 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:09,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:09,218 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:09,218 INFO L175 Difference]: Start difference. First operand has 45 places, 34 transitions, 180 flow. Second operand 6 states and 648 transitions. [2022-12-13 11:14:09,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 60 transitions, 332 flow [2022-12-13 11:14:09,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 60 transitions, 277 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-12-13 11:14:09,226 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2022-12-13 11:14:09,226 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2022-12-13 11:14:09,226 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2022-12-13 11:14:09,226 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2022-12-13 11:14:09,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:14:09,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-12-13 11:14:09,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-12-13 11:14:09,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-12-13 11:14:09,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-12-13 11:14:09,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-12-13 11:14:09,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-12-13 11:14:09,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-12-13 11:14:09,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-12-13 11:14:09,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-12-13 11:14:09,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-12-13 11:14:09,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-12-13 11:14:09,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-12-13 11:14:09,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-12-13 11:14:09,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-12-13 11:14:09,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-12-13 11:14:09,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-12-13 11:14:09,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-12-13 11:14:09,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-12-13 11:14:09,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-12-13 11:14:09,230 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-12-13 11:14:09,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 11:14:09,231 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 11:14:09,234 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 11:14:09,235 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:14:09,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:14:09 BasicIcfg [2022-12-13 11:14:09,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:14:09,237 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:14:09,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:14:09,237 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:14:09,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:14:05" (3/4) ... [2022-12-13 11:14:09,240 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 11:14:09,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 11:14:09,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 11:14:09,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 11:14:09,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-12-13 11:14:09,246 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-12-13 11:14:09,246 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 11:14:09,246 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 11:14:09,246 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 11:14:09,269 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:14:09,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:14:09,270 INFO L158 Benchmark]: Toolchain (without parser) took 4661.91ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 100.7MB in the beginning and 66.9MB in the end (delta: 33.8MB). Peak memory consumption was 62.4MB. Max. memory is 16.1GB. [2022-12-13 11:14:09,270 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory was 83.1MB in the beginning and 83.0MB in the end (delta: 24.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:14:09,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.39ms. Allocated memory is still 132.1MB. Free memory was 100.1MB in the beginning and 75.7MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 11:14:09,271 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.44ms. Allocated memory is still 132.1MB. Free memory was 75.7MB in the beginning and 74.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:14:09,271 INFO L158 Benchmark]: Boogie Preprocessor took 18.43ms. Allocated memory is still 132.1MB. Free memory was 74.1MB in the beginning and 72.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:14:09,271 INFO L158 Benchmark]: RCFGBuilder took 351.11ms. Allocated memory is still 132.1MB. Free memory was 72.1MB in the beginning and 103.6MB in the end (delta: -31.5MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2022-12-13 11:14:09,272 INFO L158 Benchmark]: TraceAbstraction took 3916.87ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 103.6MB in the beginning and 69.0MB in the end (delta: 34.6MB). Peak memory consumption was 92.8MB. Max. memory is 16.1GB. [2022-12-13 11:14:09,272 INFO L158 Benchmark]: Witness Printer took 32.22ms. Allocated memory is still 159.4MB. Free memory was 69.0MB in the beginning and 66.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:14:09,273 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 107.0MB. Free memory was 83.1MB in the beginning and 83.0MB in the end (delta: 24.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.39ms. Allocated memory is still 132.1MB. Free memory was 100.1MB in the beginning and 75.7MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.44ms. Allocated memory is still 132.1MB. Free memory was 75.7MB in the beginning and 74.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.43ms. Allocated memory is still 132.1MB. Free memory was 74.1MB in the beginning and 72.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 351.11ms. Allocated memory is still 132.1MB. Free memory was 72.1MB in the beginning and 103.6MB in the end (delta: -31.5MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3916.87ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 103.6MB in the beginning and 69.0MB in the end (delta: 34.6MB). Peak memory consumption was 92.8MB. Max. memory is 16.1GB. * Witness Printer took 32.22ms. Allocated memory is still 159.4MB. Free memory was 69.0MB in the beginning and 66.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 125 PlacesBefore, 43 PlacesAfterwards, 114 TransitionsBefore, 30 TransitionsAfterwards, 3552 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 57 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 93 TotalNumberOfCompositions, 9802 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4820, independent: 4587, independent conditional: 0, independent unconditional: 4587, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1870, independent: 1829, independent conditional: 0, independent unconditional: 1829, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4820, independent: 2758, independent conditional: 0, independent unconditional: 2758, dependent: 192, dependent conditional: 0, dependent unconditional: 192, unknown: 1870, unknown conditional: 0, unknown unconditional: 1870] , Statistics on independence cache: Total cache size (in pairs): 197, Positive cache size: 179, Positive conditional cache size: 0, Positive unconditional cache size: 179, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 755]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: 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: 785]: 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, 157 locations, 20 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: 3.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 269 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 239 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 341 IncrementalHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 2 mSDtfsCounter, 341 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 11:14:09,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8c57f36-ffe0-4beb-a6ee-bf20ae8e8371/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