./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/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_871e77e8-d42e-4feb-85bc-30e04fd2f98e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9071d56f4666aca734ab742196d3aa15fce92ad6b7c276706d2cff43d2d6147a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:39:38,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:39:38,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:39:38,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:39:38,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:39:38,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:39:38,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:39:38,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:39:38,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:39:38,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:39:38,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:39:38,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:39:38,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:39:38,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:39:38,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:39:38,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:39:38,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:39:38,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:39:38,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:39:38,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:39:38,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:39:38,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:39:38,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:39:38,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:39:38,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:39:38,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:39:38,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:39:38,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:39:38,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:39:38,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:39:38,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:39:38,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:39:38,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:39:38,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:39:38,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:39:38,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:39:38,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:39:38,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:39:38,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:39:38,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:39:38,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:39:38,658 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 15:39:38,680 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:39:38,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:39:38,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:39:38,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:39:38,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:39:38,694 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:39:38,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:39:38,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:39:38,696 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:39:38,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:39:38,697 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:39:38,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:39:38,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:39:38,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:39:38,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:39:38,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:39:38,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:39:38,698 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:39:38,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:39:38,698 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:39:38,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:39:38,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:39:38,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:39:38,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:39:38,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:39:38,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:39:38,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:39:38,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:39:38,700 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:39:38,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:39:38,700 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:39:38,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:39:38,700 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:39:38,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:39:38,700 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:39:38,701 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_871e77e8-d42e-4feb-85bc-30e04fd2f98e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9071d56f4666aca734ab742196d3aa15fce92ad6b7c276706d2cff43d2d6147a [2022-12-13 15:39:38,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:39:38,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:39:38,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:39:38,889 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:39:38,889 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:39:38,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 15:39:41,464 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:39:41,666 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:39:41,667 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 15:39:41,678 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/bin/uautomizer-uyxdKDjOR8/data/37dd0c30a/9516feb571a643af8c9b3dfd861f07e4/FLAG4c711ecee [2022-12-13 15:39:41,691 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/bin/uautomizer-uyxdKDjOR8/data/37dd0c30a/9516feb571a643af8c9b3dfd861f07e4 [2022-12-13 15:39:41,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:39:41,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:39:41,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:39:41,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:39:41,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:39:41,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:39:41" (1/1) ... [2022-12-13 15:39:41,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1964b722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:41, skipping insertion in model container [2022-12-13 15:39:41,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:39:41" (1/1) ... [2022-12-13 15:39:41,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:39:41,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:39:41,866 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_871e77e8-d42e-4feb-85bc-30e04fd2f98e/sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-13 15:39:41,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,965 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,966 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,967 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,968 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,968 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,968 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,968 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,971 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,975 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,976 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:41,977 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:41,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:39:41,985 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:39:41,994 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_871e77e8-d42e-4feb-85bc-30e04fd2f98e/sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-13 15:39:42,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,011 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,012 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,013 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,014 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,018 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:39:42,019 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:39:42,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:39:42,040 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:39:42,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:42 WrapperNode [2022-12-13 15:39:42,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:39:42,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:39:42,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:39:42,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:39:42,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:42" (1/1) ... [2022-12-13 15:39:42,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:42" (1/1) ... [2022-12-13 15:39:42,068 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-13 15:39:42,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:39:42,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:39:42,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:39:42,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:39:42,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:42" (1/1) ... [2022-12-13 15:39:42,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:42" (1/1) ... [2022-12-13 15:39:42,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:42" (1/1) ... [2022-12-13 15:39:42,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:42" (1/1) ... [2022-12-13 15:39:42,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:42" (1/1) ... [2022-12-13 15:39:42,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:42" (1/1) ... [2022-12-13 15:39:42,082 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:42" (1/1) ... [2022-12-13 15:39:42,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:42" (1/1) ... [2022-12-13 15:39:42,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:39:42,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:39:42,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:39:42,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:39:42,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:42" (1/1) ... [2022-12-13 15:39:42,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:39:42,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:39:42,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:39:42,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:39:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:39:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 15:39:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:39:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:39:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:39:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 15:39:42,143 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 15:39:42,143 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 15:39:42,144 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 15:39:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 15:39:42,144 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 15:39:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:39:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 15:39:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:39:42,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:39:42,145 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 15:39:42,230 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:39:42,231 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:39:42,345 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:39:42,350 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:39:42,350 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:39:42,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:39:42 BoogieIcfgContainer [2022-12-13 15:39:42,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:39:42,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:39:42,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:39:42,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:39:42,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:39:41" (1/3) ... [2022-12-13 15:39:42,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5099d423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:39:42, skipping insertion in model container [2022-12-13 15:39:42,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:42" (2/3) ... [2022-12-13 15:39:42,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5099d423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:39:42, skipping insertion in model container [2022-12-13 15:39:42,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:39:42" (3/3) ... [2022-12-13 15:39:42,367 INFO L112 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-13 15:39:42,373 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 15:39:42,389 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:39:42,389 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 15:39:42,389 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:39:42,433 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 15:39:42,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 199 flow [2022-12-13 15:39:42,491 INFO L130 PetriNetUnfolder]: 2/89 cut-off events. [2022-12-13 15:39:42,491 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:39:42,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2022-12-13 15:39:42,495 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 92 transitions, 199 flow [2022-12-13 15:39:42,498 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 75 transitions, 159 flow [2022-12-13 15:39:42,501 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:39:42,509 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 75 transitions, 159 flow [2022-12-13 15:39:42,511 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 75 transitions, 159 flow [2022-12-13 15:39:42,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 75 transitions, 159 flow [2022-12-13 15:39:42,528 INFO L130 PetriNetUnfolder]: 1/75 cut-off events. [2022-12-13 15:39:42,528 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:39:42,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 1/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 36 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-12-13 15:39:42,529 INFO L119 LiptonReduction]: Number of co-enabled transitions 1116 [2022-12-13 15:39:44,105 INFO L134 LiptonReduction]: Checked pairs total: 2345 [2022-12-13 15:39:44,105 INFO L136 LiptonReduction]: Total number of compositions: 64 [2022-12-13 15:39:44,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:39:44,119 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;@4115ef5a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:39:44,120 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 15:39:44,123 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2022-12-13 15:39:44,123 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:39:44,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:39:44,124 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:44,124 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:39:44,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:44,128 INFO L85 PathProgramCache]: Analyzing trace with hash -569792737, now seen corresponding path program 1 times [2022-12-13 15:39:44,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:44,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561632201] [2022-12-13 15:39:44,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:44,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:39:44,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:44,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561632201] [2022-12-13 15:39:44,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561632201] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:44,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:44,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:39:44,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361511786] [2022-12-13 15:39:44,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:44,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:39:44,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:44,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:39:44,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:39:44,458 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 156 [2022-12-13 15:39:44,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:44,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:39:44,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 156 [2022-12-13 15:39:44,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:39:44,530 INFO L130 PetriNetUnfolder]: 143/263 cut-off events. [2022-12-13 15:39:44,530 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 15:39:44,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 263 events. 143/263 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1089 event pairs, 53 based on Foata normal form. 9/268 useless extension candidates. Maximal degree in co-relation 523. Up to 154 conditions per place. [2022-12-13 15:39:44,532 INFO L137 encePairwiseOnDemand]: 152/156 looper letters, 17 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2022-12-13 15:39:44,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 91 flow [2022-12-13 15:39:44,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:39:44,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:39:44,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2022-12-13 15:39:44,542 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5854700854700855 [2022-12-13 15:39:44,542 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 274 transitions. [2022-12-13 15:39:44,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 274 transitions. [2022-12-13 15:39:44,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:39:44,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 274 transitions. [2022-12-13 15:39:44,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:44,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:44,550 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:44,552 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 3 states and 274 transitions. [2022-12-13 15:39:44,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 91 flow [2022-12-13 15:39:44,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 88 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 15:39:44,555 INFO L231 Difference]: Finished difference. Result has 27 places, 17 transitions, 48 flow [2022-12-13 15:39:44,557 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2022-12-13 15:39:44,559 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2022-12-13 15:39:44,560 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 48 flow [2022-12-13 15:39:44,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:44,560 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:39:44,560 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:44,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:39:44,560 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:39:44,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:44,561 INFO L85 PathProgramCache]: Analyzing trace with hash -483706170, now seen corresponding path program 1 times [2022-12-13 15:39:44,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:44,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46987263] [2022-12-13 15:39:44,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:44,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:44,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:39:44,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:44,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46987263] [2022-12-13 15:39:44,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46987263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:44,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:44,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:39:44,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83132719] [2022-12-13 15:39:44,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:44,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:39:44,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:44,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:39:44,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:39:44,695 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 156 [2022-12-13 15:39:44,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:44,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:39:44,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 156 [2022-12-13 15:39:44,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:39:44,792 INFO L130 PetriNetUnfolder]: 463/750 cut-off events. [2022-12-13 15:39:44,792 INFO L131 PetriNetUnfolder]: For 100/100 co-relation queries the response was YES. [2022-12-13 15:39:44,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1671 conditions, 750 events. 463/750 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3114 event pairs, 62 based on Foata normal form. 36/786 useless extension candidates. Maximal degree in co-relation 1660. Up to 427 conditions per place. [2022-12-13 15:39:44,796 INFO L137 encePairwiseOnDemand]: 149/156 looper letters, 31 selfloop transitions, 6 changer transitions 0/37 dead transitions. [2022-12-13 15:39:44,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 37 transitions, 172 flow [2022-12-13 15:39:44,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:39:44,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:39:44,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 347 transitions. [2022-12-13 15:39:44,798 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5560897435897436 [2022-12-13 15:39:44,798 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 347 transitions. [2022-12-13 15:39:44,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 347 transitions. [2022-12-13 15:39:44,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:39:44,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 347 transitions. [2022-12-13 15:39:44,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:44,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:44,800 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:44,800 INFO L175 Difference]: Start difference. First operand has 27 places, 17 transitions, 48 flow. Second operand 4 states and 347 transitions. [2022-12-13 15:39:44,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 37 transitions, 172 flow [2022-12-13 15:39:44,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 37 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:39:44,802 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 89 flow [2022-12-13 15:39:44,802 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=89, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2022-12-13 15:39:44,802 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2022-12-13 15:39:44,802 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 89 flow [2022-12-13 15:39:44,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:44,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:39:44,803 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:44,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:39:44,803 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:39:44,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:44,803 INFO L85 PathProgramCache]: Analyzing trace with hash -2110003343, now seen corresponding path program 1 times [2022-12-13 15:39:44,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:44,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787262210] [2022-12-13 15:39:44,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:44,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:44,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:39:44,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:44,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787262210] [2022-12-13 15:39:44,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787262210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:44,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:44,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:39:44,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040539750] [2022-12-13 15:39:44,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:44,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:39:44,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:44,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:39:44,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:39:44,909 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 156 [2022-12-13 15:39:44,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 89 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:44,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:39:44,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 156 [2022-12-13 15:39:44,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:39:45,000 INFO L130 PetriNetUnfolder]: 447/728 cut-off events. [2022-12-13 15:39:45,000 INFO L131 PetriNetUnfolder]: For 386/386 co-relation queries the response was YES. [2022-12-13 15:39:45,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2060 conditions, 728 events. 447/728 cut-off events. For 386/386 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2986 event pairs, 97 based on Foata normal form. 12/740 useless extension candidates. Maximal degree in co-relation 2046. Up to 377 conditions per place. [2022-12-13 15:39:45,003 INFO L137 encePairwiseOnDemand]: 149/156 looper letters, 32 selfloop transitions, 11 changer transitions 0/43 dead transitions. [2022-12-13 15:39:45,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 43 transitions, 251 flow [2022-12-13 15:39:45,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:39:45,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:39:45,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 346 transitions. [2022-12-13 15:39:45,005 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5544871794871795 [2022-12-13 15:39:45,005 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 346 transitions. [2022-12-13 15:39:45,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 346 transitions. [2022-12-13 15:39:45,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:39:45,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 346 transitions. [2022-12-13 15:39:45,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,008 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,008 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 89 flow. Second operand 4 states and 346 transitions. [2022-12-13 15:39:45,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 43 transitions, 251 flow [2022-12-13 15:39:45,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 43 transitions, 248 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:39:45,009 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 182 flow [2022-12-13 15:39:45,009 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2022-12-13 15:39:45,010 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 9 predicate places. [2022-12-13 15:39:45,010 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 182 flow [2022-12-13 15:39:45,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,010 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:39:45,010 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:45,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:39:45,011 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:39:45,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:45,011 INFO L85 PathProgramCache]: Analyzing trace with hash -985637945, now seen corresponding path program 1 times [2022-12-13 15:39:45,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:45,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001419615] [2022-12-13 15:39:45,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:45,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:45,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:39:45,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:45,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001419615] [2022-12-13 15:39:45,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001419615] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:45,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:45,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:39:45,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135248716] [2022-12-13 15:39:45,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:45,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:39:45,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:45,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:39:45,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:39:45,089 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 156 [2022-12-13 15:39:45,090 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:39:45,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 156 [2022-12-13 15:39:45,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:39:45,145 INFO L130 PetriNetUnfolder]: 201/391 cut-off events. [2022-12-13 15:39:45,145 INFO L131 PetriNetUnfolder]: For 553/567 co-relation queries the response was YES. [2022-12-13 15:39:45,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1279 conditions, 391 events. 201/391 cut-off events. For 553/567 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1795 event pairs, 52 based on Foata normal form. 23/397 useless extension candidates. Maximal degree in co-relation 1261. Up to 286 conditions per place. [2022-12-13 15:39:45,147 INFO L137 encePairwiseOnDemand]: 151/156 looper letters, 28 selfloop transitions, 4 changer transitions 0/42 dead transitions. [2022-12-13 15:39:45,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 320 flow [2022-12-13 15:39:45,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:39:45,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:39:45,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2022-12-13 15:39:45,148 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5790598290598291 [2022-12-13 15:39:45,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2022-12-13 15:39:45,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2022-12-13 15:39:45,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:39:45,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2022-12-13 15:39:45,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,150 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,150 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 182 flow. Second operand 3 states and 271 transitions. [2022-12-13 15:39:45,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 320 flow [2022-12-13 15:39:45,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 314 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:39:45,152 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 204 flow [2022-12-13 15:39:45,153 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2022-12-13 15:39:45,153 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2022-12-13 15:39:45,153 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 204 flow [2022-12-13 15:39:45,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,153 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:39:45,153 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:45,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:39:45,154 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:39:45,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:45,154 INFO L85 PathProgramCache]: Analyzing trace with hash 494954468, now seen corresponding path program 1 times [2022-12-13 15:39:45,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:45,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783319394] [2022-12-13 15:39:45,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:45,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:45,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:39:45,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:45,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783319394] [2022-12-13 15:39:45,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783319394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:45,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:45,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:39:45,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349272609] [2022-12-13 15:39:45,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:45,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:39:45,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:45,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:39:45,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:39:45,262 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 156 [2022-12-13 15:39:45,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:39:45,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 156 [2022-12-13 15:39:45,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:39:45,333 INFO L130 PetriNetUnfolder]: 129/273 cut-off events. [2022-12-13 15:39:45,333 INFO L131 PetriNetUnfolder]: For 414/454 co-relation queries the response was YES. [2022-12-13 15:39:45,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1046 conditions, 273 events. 129/273 cut-off events. For 414/454 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1162 event pairs, 22 based on Foata normal form. 56/318 useless extension candidates. Maximal degree in co-relation 1025. Up to 113 conditions per place. [2022-12-13 15:39:45,334 INFO L137 encePairwiseOnDemand]: 151/156 looper letters, 35 selfloop transitions, 7 changer transitions 0/52 dead transitions. [2022-12-13 15:39:45,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 52 transitions, 408 flow [2022-12-13 15:39:45,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:39:45,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:39:45,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 361 transitions. [2022-12-13 15:39:45,336 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5785256410256411 [2022-12-13 15:39:45,336 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 361 transitions. [2022-12-13 15:39:45,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 361 transitions. [2022-12-13 15:39:45,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:39:45,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 361 transitions. [2022-12-13 15:39:45,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,338 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,338 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 204 flow. Second operand 4 states and 361 transitions. [2022-12-13 15:39:45,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 52 transitions, 408 flow [2022-12-13 15:39:45,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 52 transitions, 404 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:39:45,340 INFO L231 Difference]: Finished difference. Result has 41 places, 34 transitions, 240 flow [2022-12-13 15:39:45,340 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=240, PETRI_PLACES=41, PETRI_TRANSITIONS=34} [2022-12-13 15:39:45,341 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 14 predicate places. [2022-12-13 15:39:45,341 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 240 flow [2022-12-13 15:39:45,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,341 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:39:45,341 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:45,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:39:45,341 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:39:45,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:45,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1132353389, now seen corresponding path program 1 times [2022-12-13 15:39:45,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:45,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071167327] [2022-12-13 15:39:45,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:45,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:45,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:39:45,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:45,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071167327] [2022-12-13 15:39:45,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071167327] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:45,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:45,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:39:45,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992612150] [2022-12-13 15:39:45,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:45,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:39:45,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:45,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:39:45,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:39:45,426 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 156 [2022-12-13 15:39:45,427 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 240 flow. Second operand has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,427 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:39:45,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 156 [2022-12-13 15:39:45,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:39:45,496 INFO L130 PetriNetUnfolder]: 113/235 cut-off events. [2022-12-13 15:39:45,496 INFO L131 PetriNetUnfolder]: For 594/662 co-relation queries the response was YES. [2022-12-13 15:39:45,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 235 events. 113/235 cut-off events. For 594/662 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 974 event pairs, 18 based on Foata normal form. 62/287 useless extension candidates. Maximal degree in co-relation 965. Up to 89 conditions per place. [2022-12-13 15:39:45,497 INFO L137 encePairwiseOnDemand]: 151/156 looper letters, 31 selfloop transitions, 10 changer transitions 1/52 dead transitions. [2022-12-13 15:39:45,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 52 transitions, 432 flow [2022-12-13 15:39:45,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:39:45,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:39:45,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 443 transitions. [2022-12-13 15:39:45,499 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5679487179487179 [2022-12-13 15:39:45,499 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 443 transitions. [2022-12-13 15:39:45,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 443 transitions. [2022-12-13 15:39:45,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:39:45,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 443 transitions. [2022-12-13 15:39:45,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,501 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,501 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 240 flow. Second operand 5 states and 443 transitions. [2022-12-13 15:39:45,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 52 transitions, 432 flow [2022-12-13 15:39:45,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 52 transitions, 386 flow, removed 6 selfloop flow, removed 5 redundant places. [2022-12-13 15:39:45,504 INFO L231 Difference]: Finished difference. Result has 41 places, 34 transitions, 236 flow [2022-12-13 15:39:45,504 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=41, PETRI_TRANSITIONS=34} [2022-12-13 15:39:45,504 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 14 predicate places. [2022-12-13 15:39:45,504 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 236 flow [2022-12-13 15:39:45,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,505 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:39:45,505 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:45,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:39:45,505 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:39:45,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:45,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1694637694, now seen corresponding path program 1 times [2022-12-13 15:39:45,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:45,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944665803] [2022-12-13 15:39:45,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:45,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:45,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:39:45,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:45,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944665803] [2022-12-13 15:39:45,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944665803] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:45,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:45,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:39:45,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899970633] [2022-12-13 15:39:45,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:45,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:39:45,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:45,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:39:45,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:39:45,614 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 156 [2022-12-13 15:39:45,615 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,615 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:39:45,615 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 156 [2022-12-13 15:39:45,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:39:45,713 INFO L130 PetriNetUnfolder]: 222/415 cut-off events. [2022-12-13 15:39:45,714 INFO L131 PetriNetUnfolder]: For 935/935 co-relation queries the response was YES. [2022-12-13 15:39:45,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1755 conditions, 415 events. 222/415 cut-off events. For 935/935 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1704 event pairs, 34 based on Foata normal form. 1/416 useless extension candidates. Maximal degree in co-relation 1734. Up to 155 conditions per place. [2022-12-13 15:39:45,716 INFO L137 encePairwiseOnDemand]: 149/156 looper letters, 39 selfloop transitions, 11 changer transitions 31/81 dead transitions. [2022-12-13 15:39:45,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 81 transitions, 706 flow [2022-12-13 15:39:45,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:39:45,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:39:45,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 514 transitions. [2022-12-13 15:39:45,717 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5491452991452992 [2022-12-13 15:39:45,717 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 514 transitions. [2022-12-13 15:39:45,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 514 transitions. [2022-12-13 15:39:45,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:39:45,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 514 transitions. [2022-12-13 15:39:45,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.66666666666667) internal successors, (514), 6 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,719 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,720 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 236 flow. Second operand 6 states and 514 transitions. [2022-12-13 15:39:45,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 81 transitions, 706 flow [2022-12-13 15:39:45,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 81 transitions, 620 flow, removed 18 selfloop flow, removed 3 redundant places. [2022-12-13 15:39:45,723 INFO L231 Difference]: Finished difference. Result has 45 places, 33 transitions, 232 flow [2022-12-13 15:39:45,723 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=232, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2022-12-13 15:39:45,723 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 18 predicate places. [2022-12-13 15:39:45,723 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 232 flow [2022-12-13 15:39:45,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,724 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:39:45,724 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:45,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:39:45,724 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:39:45,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:45,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1145347288, now seen corresponding path program 2 times [2022-12-13 15:39:45,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:45,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730265361] [2022-12-13 15:39:45,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:45,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:45,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:39:45,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:45,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730265361] [2022-12-13 15:39:45,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730265361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:45,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:45,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:39:45,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019790472] [2022-12-13 15:39:45,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:45,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:39:45,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:45,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:39:45,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:39:45,818 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 156 [2022-12-13 15:39:45,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:39:45,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 156 [2022-12-13 15:39:45,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:39:45,911 INFO L130 PetriNetUnfolder]: 182/349 cut-off events. [2022-12-13 15:39:45,911 INFO L131 PetriNetUnfolder]: For 946/946 co-relation queries the response was YES. [2022-12-13 15:39:45,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1538 conditions, 349 events. 182/349 cut-off events. For 946/946 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1386 event pairs, 20 based on Foata normal form. 1/350 useless extension candidates. Maximal degree in co-relation 1522. Up to 185 conditions per place. [2022-12-13 15:39:45,914 INFO L137 encePairwiseOnDemand]: 148/156 looper letters, 32 selfloop transitions, 11 changer transitions 27/70 dead transitions. [2022-12-13 15:39:45,914 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 70 transitions, 600 flow [2022-12-13 15:39:45,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:39:45,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:39:45,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 422 transitions. [2022-12-13 15:39:45,915 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.541025641025641 [2022-12-13 15:39:45,915 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 422 transitions. [2022-12-13 15:39:45,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 422 transitions. [2022-12-13 15:39:45,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:39:45,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 422 transitions. [2022-12-13 15:39:45,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,922 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,922 INFO L175 Difference]: Start difference. First operand has 45 places, 33 transitions, 232 flow. Second operand 5 states and 422 transitions. [2022-12-13 15:39:45,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 70 transitions, 600 flow [2022-12-13 15:39:45,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 70 transitions, 558 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-12-13 15:39:45,925 INFO L231 Difference]: Finished difference. Result has 47 places, 34 transitions, 259 flow [2022-12-13 15:39:45,925 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=259, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2022-12-13 15:39:45,925 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 20 predicate places. [2022-12-13 15:39:45,926 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 259 flow [2022-12-13 15:39:45,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:45,926 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:39:45,926 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:45,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 15:39:45,926 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:39:45,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:45,926 INFO L85 PathProgramCache]: Analyzing trace with hash 816496976, now seen corresponding path program 3 times [2022-12-13 15:39:45,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:45,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292557615] [2022-12-13 15:39:45,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:45,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:46,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:39:46,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:46,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292557615] [2022-12-13 15:39:46,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292557615] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:46,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:46,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:39:46,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99683063] [2022-12-13 15:39:46,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:46,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:39:46,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:46,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:39:46,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:39:46,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 156 [2022-12-13 15:39:46,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 259 flow. Second operand has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:46,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:39:46,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 156 [2022-12-13 15:39:46,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:39:46,107 INFO L130 PetriNetUnfolder]: 112/253 cut-off events. [2022-12-13 15:39:46,107 INFO L131 PetriNetUnfolder]: For 706/706 co-relation queries the response was YES. [2022-12-13 15:39:46,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1190 conditions, 253 events. 112/253 cut-off events. For 706/706 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1039 event pairs, 19 based on Foata normal form. 1/254 useless extension candidates. Maximal degree in co-relation 1164. Up to 119 conditions per place. [2022-12-13 15:39:46,108 INFO L137 encePairwiseOnDemand]: 149/156 looper letters, 30 selfloop transitions, 11 changer transitions 22/63 dead transitions. [2022-12-13 15:39:46,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 63 transitions, 552 flow [2022-12-13 15:39:46,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:39:46,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:39:46,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 503 transitions. [2022-12-13 15:39:46,111 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5373931623931624 [2022-12-13 15:39:46,111 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 503 transitions. [2022-12-13 15:39:46,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 503 transitions. [2022-12-13 15:39:46,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:39:46,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 503 transitions. [2022-12-13 15:39:46,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:46,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:46,115 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 156.0) internal successors, (1092), 7 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:46,115 INFO L175 Difference]: Start difference. First operand has 47 places, 34 transitions, 259 flow. Second operand 6 states and 503 transitions. [2022-12-13 15:39:46,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 63 transitions, 552 flow [2022-12-13 15:39:46,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 63 transitions, 526 flow, removed 9 selfloop flow, removed 2 redundant places. [2022-12-13 15:39:46,120 INFO L231 Difference]: Finished difference. Result has 51 places, 33 transitions, 251 flow [2022-12-13 15:39:46,120 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=251, PETRI_PLACES=51, PETRI_TRANSITIONS=33} [2022-12-13 15:39:46,121 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 24 predicate places. [2022-12-13 15:39:46,121 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 33 transitions, 251 flow [2022-12-13 15:39:46,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:46,121 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:39:46,121 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:46,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:39:46,122 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 15:39:46,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:46,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1892100824, now seen corresponding path program 4 times [2022-12-13 15:39:46,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:46,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913735078] [2022-12-13 15:39:46,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:46,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:46,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:39:46,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:46,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913735078] [2022-12-13 15:39:46,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913735078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:46,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:39:46,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:39:46,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568880607] [2022-12-13 15:39:46,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:46,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:39:46,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:46,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:39:46,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:39:46,248 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 156 [2022-12-13 15:39:46,249 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 33 transitions, 251 flow. Second operand has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:46,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:39:46,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 156 [2022-12-13 15:39:46,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:39:46,300 INFO L130 PetriNetUnfolder]: 99/217 cut-off events. [2022-12-13 15:39:46,300 INFO L131 PetriNetUnfolder]: For 741/741 co-relation queries the response was YES. [2022-12-13 15:39:46,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 217 events. 99/217 cut-off events. For 741/741 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 808 event pairs, 19 based on Foata normal form. 1/218 useless extension candidates. Maximal degree in co-relation 1015. Up to 153 conditions per place. [2022-12-13 15:39:46,301 INFO L137 encePairwiseOnDemand]: 153/156 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2022-12-13 15:39:46,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 40 transitions, 368 flow [2022-12-13 15:39:46,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:39:46,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:39:46,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2022-12-13 15:39:46,303 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.530448717948718 [2022-12-13 15:39:46,303 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 331 transitions. [2022-12-13 15:39:46,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions. [2022-12-13 15:39:46,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:39:46,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions. [2022-12-13 15:39:46,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:46,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:46,306 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 156.0) internal successors, (780), 5 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:46,306 INFO L175 Difference]: Start difference. First operand has 51 places, 33 transitions, 251 flow. Second operand 4 states and 331 transitions. [2022-12-13 15:39:46,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 40 transitions, 368 flow [2022-12-13 15:39:46,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 40 transitions, 333 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-12-13 15:39:46,309 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2022-12-13 15:39:46,310 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2022-12-13 15:39:46,310 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 20 predicate places. [2022-12-13 15:39:46,310 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2022-12-13 15:39:46,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:39:46,313 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-13 15:39:46,313 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-13 15:39:46,313 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 15:39:46,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-13 15:39:46,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 15:39:46,314 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:46,317 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:39:46,317 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:39:46,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:39:46 BasicIcfg [2022-12-13 15:39:46,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:39:46,321 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:39:46,321 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:39:46,321 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:39:46,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:39:42" (3/4) ... [2022-12-13 15:39:46,324 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 15:39:46,330 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 15:39:46,330 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 15:39:46,330 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 15:39:46,334 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-12-13 15:39:46,334 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 15:39:46,334 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 15:39:46,335 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 15:39:46,364 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:39:46,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:39:46,364 INFO L158 Benchmark]: Toolchain (without parser) took 4669.12ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 80.0MB in the beginning and 126.9MB in the end (delta: -46.9MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2022-12-13 15:39:46,364 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:39:46,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.07ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 56.5MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 15:39:46,365 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.76ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 54.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:39:46,365 INFO L158 Benchmark]: Boogie Preprocessor took 15.60ms. Allocated memory is still 117.4MB. Free memory was 54.5MB in the beginning and 52.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:39:46,365 INFO L158 Benchmark]: RCFGBuilder took 267.07ms. Allocated memory is still 117.4MB. Free memory was 52.8MB in the beginning and 39.5MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 15:39:46,365 INFO L158 Benchmark]: TraceAbstraction took 3958.52ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 89.4MB in the beginning and 130.0MB in the end (delta: -40.6MB). Peak memory consumption was 96.0MB. Max. memory is 16.1GB. [2022-12-13 15:39:46,365 INFO L158 Benchmark]: Witness Printer took 43.12ms. Allocated memory is still 165.7MB. Free memory was 130.0MB in the beginning and 126.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 15:39:46,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.07ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 56.5MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.76ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 54.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.60ms. Allocated memory is still 117.4MB. Free memory was 54.5MB in the beginning and 52.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 267.07ms. Allocated memory is still 117.4MB. Free memory was 52.8MB in the beginning and 39.5MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3958.52ms. Allocated memory was 117.4MB in the beginning and 165.7MB in the end (delta: 48.2MB). Free memory was 89.4MB in the beginning and 130.0MB in the end (delta: -40.6MB). Peak memory consumption was 96.0MB. Max. memory is 16.1GB. * Witness Printer took 43.12ms. Allocated memory is still 165.7MB. Free memory was 130.0MB in the beginning and 126.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 84 PlacesBefore, 27 PlacesAfterwards, 75 TransitionsBefore, 18 TransitionsAfterwards, 1116 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 64 TotalNumberOfCompositions, 2345 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1223, independent: 1127, independent conditional: 0, independent unconditional: 1127, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 617, independent: 587, independent conditional: 0, independent unconditional: 587, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1223, independent: 540, independent conditional: 0, independent unconditional: 540, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 617, unknown conditional: 0, unknown unconditional: 617] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 115 locations, 4 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: 3.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 318 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 236 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 539 IncrementalHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 47 mSDtfsCounter, 539 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=259occurred in iteration=8, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 542 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 15:39:46,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_871e77e8-d42e-4feb-85bc-30e04fd2f98e/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