./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi000_tso.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_a7618a24-a7e1-4767-9821-6c92c23dbc48/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7618a24-a7e1-4767-9821-6c92c23dbc48/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_a7618a24-a7e1-4767-9821-6c92c23dbc48/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7618a24-a7e1-4767-9821-6c92c23dbc48/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi000_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7618a24-a7e1-4767-9821-6c92c23dbc48/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_a7618a24-a7e1-4767-9821-6c92c23dbc48/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 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd --- 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 14:09:56,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:09:56,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:09:56,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:09:56,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:09:56,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:09:56,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:09:56,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:09:56,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:09:56,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:09:56,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:09:56,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:09:56,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:09:56,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:09:56,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:09:56,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:09:56,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:09:56,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:09:56,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:09:56,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:09:56,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:09:56,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:09:56,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:09:56,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:09:56,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:09:56,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:09:56,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:09:56,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:09:56,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:09:56,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:09:56,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:09:56,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:09:56,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:09:56,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:09:56,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:09:56,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:09:56,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:09:56,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:09:56,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:09:56,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:09:56,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:09:56,580 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7618a24-a7e1-4767-9821-6c92c23dbc48/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:09:56,596 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:09:56,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:09:56,596 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:09:56,596 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:09:56,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:09:56,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:09:56,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:09:56,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:09:56,598 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:09:56,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:09:56,598 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:09:56,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:09:56,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:09:56,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:09:56,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:09:56,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:09:56,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:09:56,599 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:09:56,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:09:56,599 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:09:56,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:09:56,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:09:56,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:09:56,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:09:56,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:09:56,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:09:56,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:09:56,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:09:56,600 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:09:56,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:09:56,601 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:09:56,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:09:56,601 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:09:56,601 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:09:56,601 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:09:56,601 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_a7618a24-a7e1-4767-9821-6c92c23dbc48/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7618a24-a7e1-4767-9821-6c92c23dbc48/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd [2022-12-13 14:09:56,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:09:56,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:09:56,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:09:56,818 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:09:56,818 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:09:56,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7618a24-a7e1-4767-9821-6c92c23dbc48/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2022-12-13 14:09:59,403 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:09:59,607 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:09:59,608 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7618a24-a7e1-4767-9821-6c92c23dbc48/sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2022-12-13 14:09:59,625 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7618a24-a7e1-4767-9821-6c92c23dbc48/bin/uautomizer-uyxdKDjOR8/data/a6bf17289/5e5b46fe529448f88660452d8568f6db/FLAGb9ef1105d [2022-12-13 14:09:59,637 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7618a24-a7e1-4767-9821-6c92c23dbc48/bin/uautomizer-uyxdKDjOR8/data/a6bf17289/5e5b46fe529448f88660452d8568f6db [2022-12-13 14:09:59,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:09:59,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:09:59,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:09:59,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:09:59,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:09:59,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:09:59" (1/1) ... [2022-12-13 14:09:59,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34242dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:09:59, skipping insertion in model container [2022-12-13 14:09:59,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:09:59" (1/1) ... [2022-12-13 14:09:59,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:09:59,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:09:59,813 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_a7618a24-a7e1-4767-9821-6c92c23dbc48/sv-benchmarks/c/pthread-wmm/rfi000_tso.i[944,957] [2022-12-13 14:09:59,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:09:59,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:09:59,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:09:59,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:09:59,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:09:59,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:09:59,948 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:09:59,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:09:59,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:09:59,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:09:59,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:09:59,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:09:59,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:09:59,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:09:59,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:09:59,969 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:09:59,970 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:09:59,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:09:59,972 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:09:59,973 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:09:59,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:09:59,979 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:09:59,980 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:09:59,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:09:59,982 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:09:59,988 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:09:59,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:09:59,999 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:10:00,010 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_a7618a24-a7e1-4767-9821-6c92c23dbc48/sv-benchmarks/c/pthread-wmm/rfi000_tso.i[944,957] [2022-12-13 14:10:00,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:10:00,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:10:00,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:10:00,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:10:00,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:10:00,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:10:00,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:10:00,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:10:00,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:10:00,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:10:00,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:10:00,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:10:00,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:10:00,036 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:10:00,037 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:10:00,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:10:00,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:10:00,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:10:00,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:10:00,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:10:00,045 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:10:00,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:10:00,046 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:10:00,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:10:00,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 14:10:00,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 14:10:00,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:10:00,082 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:10:00,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:10:00 WrapperNode [2022-12-13 14:10:00,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:10:00,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:10:00,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:10:00,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:10:00,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:10:00" (1/1) ... [2022-12-13 14:10:00,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:10:00" (1/1) ... [2022-12-13 14:10:00,136 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 164 [2022-12-13 14:10:00,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:10:00,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:10:00,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:10:00,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:10:00,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:10:00" (1/1) ... [2022-12-13 14:10:00,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:10:00" (1/1) ... [2022-12-13 14:10:00,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:10:00" (1/1) ... [2022-12-13 14:10:00,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:10:00" (1/1) ... [2022-12-13 14:10:00,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:10:00" (1/1) ... [2022-12-13 14:10:00,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:10:00" (1/1) ... [2022-12-13 14:10:00,163 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:10:00" (1/1) ... [2022-12-13 14:10:00,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:10:00" (1/1) ... [2022-12-13 14:10:00,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:10:00,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:10:00,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:10:00,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:10:00,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:10:00" (1/1) ... [2022-12-13 14:10:00,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:10:00,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7618a24-a7e1-4767-9821-6c92c23dbc48/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:10:00,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7618a24-a7e1-4767-9821-6c92c23dbc48/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:10:00,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7618a24-a7e1-4767-9821-6c92c23dbc48/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:10:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:10:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 14:10:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:10:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:10:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:10:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 14:10:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 14:10:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 14:10:00,247 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 14:10:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:10:00,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 14:10:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:10:00,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:10:00,259 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 14:10:00,361 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:10:00,363 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:10:00,629 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:10:00,727 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:10:00,727 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:10:00,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:10:00 BoogieIcfgContainer [2022-12-13 14:10:00,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:10:00,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:10:00,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:10:00,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:10:00,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:09:59" (1/3) ... [2022-12-13 14:10:00,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765be798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:10:00, skipping insertion in model container [2022-12-13 14:10:00,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:10:00" (2/3) ... [2022-12-13 14:10:00,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765be798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:10:00, skipping insertion in model container [2022-12-13 14:10:00,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:10:00" (3/3) ... [2022-12-13 14:10:00,734 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2022-12-13 14:10:00,740 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 14:10:00,748 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:10:00,748 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 14:10:00,748 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 14:10:00,781 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 14:10:00,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 97 transitions, 204 flow [2022-12-13 14:10:00,835 INFO L130 PetriNetUnfolder]: 2/95 cut-off events. [2022-12-13 14:10:00,836 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:10:00,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 95 events. 2/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-12-13 14:10:00,839 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 97 transitions, 204 flow [2022-12-13 14:10:00,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 95 transitions, 196 flow [2022-12-13 14:10:00,845 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 14:10:00,852 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 95 transitions, 196 flow [2022-12-13 14:10:00,854 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 95 transitions, 196 flow [2022-12-13 14:10:00,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 95 transitions, 196 flow [2022-12-13 14:10:00,885 INFO L130 PetriNetUnfolder]: 2/95 cut-off events. [2022-12-13 14:10:00,885 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:10:00,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 95 events. 2/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-12-13 14:10:00,888 INFO L119 LiptonReduction]: Number of co-enabled transitions 1292 [2022-12-13 14:10:03,349 INFO L134 LiptonReduction]: Checked pairs total: 3894 [2022-12-13 14:10:03,349 INFO L136 LiptonReduction]: Total number of compositions: 85 [2022-12-13 14:10:03,359 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:10:03,363 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;@74fe4d12, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:10:03,364 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 14:10:03,367 INFO L130 PetriNetUnfolder]: 1/12 cut-off events. [2022-12-13 14:10:03,367 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:10:03,367 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:10:03,367 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 14:10:03,367 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:10:03,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:10:03,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1589102359, now seen corresponding path program 1 times [2022-12-13 14:10:03,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:10:03,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063203441] [2022-12-13 14:10:03,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:10:03,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:10:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:10:03,726 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 14:10:03,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:10:03,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063203441] [2022-12-13 14:10:03,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063203441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:10:03,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:10:03,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 14:10:03,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928025465] [2022-12-13 14:10:03,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:10:03,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:10:03,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:10:03,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:10:03,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:10:03,760 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 182 [2022-12-13 14:10:03,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 21 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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 14:10:03,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:10:03,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 182 [2022-12-13 14:10:03,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:10:03,901 INFO L130 PetriNetUnfolder]: 249/428 cut-off events. [2022-12-13 14:10:03,901 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 14:10:03,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 868 conditions, 428 events. 249/428 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1664 event pairs, 59 based on Foata normal form. 0/399 useless extension candidates. Maximal degree in co-relation 858. Up to 311 conditions per place. [2022-12-13 14:10:03,905 INFO L137 encePairwiseOnDemand]: 178/182 looper letters, 22 selfloop transitions, 2 changer transitions 2/27 dead transitions. [2022-12-13 14:10:03,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 112 flow [2022-12-13 14:10:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:10:03,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:10:03,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2022-12-13 14:10:03,915 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5091575091575091 [2022-12-13 14:10:03,915 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2022-12-13 14:10:03,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2022-12-13 14:10:03,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:10:03,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2022-12-13 14:10:03,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 14:10:03,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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 14:10:03,924 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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 14:10:03,925 INFO L175 Difference]: Start difference. First operand has 27 places, 21 transitions, 48 flow. Second operand 3 states and 278 transitions. [2022-12-13 14:10:03,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 112 flow [2022-12-13 14:10:03,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 14:10:03,928 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 44 flow [2022-12-13 14:10:03,930 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2022-12-13 14:10:03,932 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, -1 predicate places. [2022-12-13 14:10:03,932 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 44 flow [2022-12-13 14:10:03,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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 14:10:03,933 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:10:03,933 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:10:03,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:10:03,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:10:03,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:10:03,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1879707858, now seen corresponding path program 1 times [2022-12-13 14:10:03,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:10:03,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272007344] [2022-12-13 14:10:03,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:10:03,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:10:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:10:04,671 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 14:10:04,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:10:04,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272007344] [2022-12-13 14:10:04,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272007344] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:10:04,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:10:04,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:10:04,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232913246] [2022-12-13 14:10:04,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:10:04,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:10:04,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:10:04,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:10:04,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:10:04,718 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 182 [2022-12-13 14:10:04,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 44 flow. Second operand has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 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 14:10:04,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:10:04,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 182 [2022-12-13 14:10:04,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:10:05,058 INFO L130 PetriNetUnfolder]: 337/591 cut-off events. [2022-12-13 14:10:05,058 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-13 14:10:05,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1234 conditions, 591 events. 337/591 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2387 event pairs, 100 based on Foata normal form. 41/632 useless extension candidates. Maximal degree in co-relation 1224. Up to 439 conditions per place. [2022-12-13 14:10:05,062 INFO L137 encePairwiseOnDemand]: 172/182 looper letters, 27 selfloop transitions, 10 changer transitions 22/59 dead transitions. [2022-12-13 14:10:05,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 59 transitions, 254 flow [2022-12-13 14:10:05,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:10:05,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 14:10:05,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 573 transitions. [2022-12-13 14:10:05,066 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4497645211930926 [2022-12-13 14:10:05,066 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 573 transitions. [2022-12-13 14:10:05,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 573 transitions. [2022-12-13 14:10:05,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:10:05,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 573 transitions. [2022-12-13 14:10:05,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.85714285714286) internal successors, (573), 7 states have internal predecessors, (573), 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 14:10:05,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 182.0) internal successors, (1456), 8 states have internal predecessors, (1456), 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 14:10:05,073 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 182.0) internal successors, (1456), 8 states have internal predecessors, (1456), 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 14:10:05,074 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 44 flow. Second operand 7 states and 573 transitions. [2022-12-13 14:10:05,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 59 transitions, 254 flow [2022-12-13 14:10:05,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 59 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 14:10:05,077 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 117 flow [2022-12-13 14:10:05,077 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=117, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2022-12-13 14:10:05,077 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2022-12-13 14:10:05,078 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 117 flow [2022-12-13 14:10:05,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.6) internal successors, (373), 5 states have internal predecessors, (373), 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 14:10:05,078 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:10:05,078 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:10:05,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:10:05,078 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:10:05,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:10:05,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1858548561, now seen corresponding path program 1 times [2022-12-13 14:10:05,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:10:05,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849997884] [2022-12-13 14:10:05,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:10:05,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:10:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:10:05,623 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 14:10:05,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:10:05,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849997884] [2022-12-13 14:10:05,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849997884] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:10:05,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:10:05,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:10:05,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346454242] [2022-12-13 14:10:05,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:10:05,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:10:05,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:10:05,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:10:05,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:10:05,679 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 182 [2022-12-13 14:10:05,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 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 14:10:05,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:10:05,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 182 [2022-12-13 14:10:05,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:10:05,946 INFO L130 PetriNetUnfolder]: 271/481 cut-off events. [2022-12-13 14:10:05,946 INFO L131 PetriNetUnfolder]: For 424/424 co-relation queries the response was YES. [2022-12-13 14:10:05,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1521 conditions, 481 events. 271/481 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1811 event pairs, 89 based on Foata normal form. 39/520 useless extension candidates. Maximal degree in co-relation 1506. Up to 229 conditions per place. [2022-12-13 14:10:05,950 INFO L137 encePairwiseOnDemand]: 174/182 looper letters, 30 selfloop transitions, 7 changer transitions 21/58 dead transitions. [2022-12-13 14:10:05,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 58 transitions, 365 flow [2022-12-13 14:10:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:10:05,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 14:10:05,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 562 transitions. [2022-12-13 14:10:05,953 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4411302982731554 [2022-12-13 14:10:05,953 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 562 transitions. [2022-12-13 14:10:05,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 562 transitions. [2022-12-13 14:10:05,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:10:05,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 562 transitions. [2022-12-13 14:10:05,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.28571428571429) internal successors, (562), 7 states have internal predecessors, (562), 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 14:10:05,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 182.0) internal successors, (1456), 8 states have internal predecessors, (1456), 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 14:10:05,959 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 182.0) internal successors, (1456), 8 states have internal predecessors, (1456), 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 14:10:05,959 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 117 flow. Second operand 7 states and 562 transitions. [2022-12-13 14:10:05,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 58 transitions, 365 flow [2022-12-13 14:10:05,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 58 transitions, 357 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-13 14:10:05,963 INFO L231 Difference]: Finished difference. Result has 41 places, 29 transitions, 174 flow [2022-12-13 14:10:05,963 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=174, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2022-12-13 14:10:05,964 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 14 predicate places. [2022-12-13 14:10:05,964 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 174 flow [2022-12-13 14:10:05,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.8) internal successors, (374), 5 states have internal predecessors, (374), 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 14:10:05,964 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:10:05,964 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:10:05,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:10:05,965 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:10:05,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:10:05,965 INFO L85 PathProgramCache]: Analyzing trace with hash 678248931, now seen corresponding path program 1 times [2022-12-13 14:10:05,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:10:05,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934157713] [2022-12-13 14:10:05,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:10:05,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:10:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:10:06,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:10:06,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:10:06,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934157713] [2022-12-13 14:10:06,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934157713] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:10:06,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:10:06,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:10:06,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916641288] [2022-12-13 14:10:06,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:10:06,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:10:06,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:10:06,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:10:06,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:10:06,614 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 182 [2022-12-13 14:10:06,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 174 flow. Second operand has 8 states, 8 states have (on average 78.5) internal successors, (628), 8 states have internal predecessors, (628), 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 14:10:06,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:10:06,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 182 [2022-12-13 14:10:06,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:10:06,804 INFO L130 PetriNetUnfolder]: 211/388 cut-off events. [2022-12-13 14:10:06,804 INFO L131 PetriNetUnfolder]: For 612/631 co-relation queries the response was YES. [2022-12-13 14:10:06,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1394 conditions, 388 events. 211/388 cut-off events. For 612/631 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1444 event pairs, 47 based on Foata normal form. 30/414 useless extension candidates. Maximal degree in co-relation 1373. Up to 318 conditions per place. [2022-12-13 14:10:06,806 INFO L137 encePairwiseOnDemand]: 174/182 looper letters, 36 selfloop transitions, 9 changer transitions 10/58 dead transitions. [2022-12-13 14:10:06,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 403 flow [2022-12-13 14:10:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:10:06,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 14:10:06,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 662 transitions. [2022-12-13 14:10:06,808 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45467032967032966 [2022-12-13 14:10:06,808 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 662 transitions. [2022-12-13 14:10:06,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 662 transitions. [2022-12-13 14:10:06,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:10:06,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 662 transitions. [2022-12-13 14:10:06,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 82.75) internal successors, (662), 8 states have internal predecessors, (662), 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 14:10:06,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 182.0) internal successors, (1638), 9 states have internal predecessors, (1638), 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 14:10:06,811 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 182.0) internal successors, (1638), 9 states have internal predecessors, (1638), 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 14:10:06,811 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 174 flow. Second operand 8 states and 662 transitions. [2022-12-13 14:10:06,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 403 flow [2022-12-13 14:10:06,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 58 transitions, 385 flow, removed 5 selfloop flow, removed 3 redundant places. [2022-12-13 14:10:06,815 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 239 flow [2022-12-13 14:10:06,815 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=239, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2022-12-13 14:10:06,815 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 21 predicate places. [2022-12-13 14:10:06,815 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 239 flow [2022-12-13 14:10:06,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 78.5) internal successors, (628), 8 states have internal predecessors, (628), 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 14:10:06,816 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:10:06,816 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:10:06,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:10:06,816 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:10:06,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:10:06,816 INFO L85 PathProgramCache]: Analyzing trace with hash 838173503, now seen corresponding path program 1 times [2022-12-13 14:10:06,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:10:06,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162586229] [2022-12-13 14:10:06,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:10:06,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:10:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:10:07,013 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 14:10:07,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:10:07,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162586229] [2022-12-13 14:10:07,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162586229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:10:07,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:10:07,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:10:07,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673921883] [2022-12-13 14:10:07,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:10:07,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 14:10:07,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:10:07,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 14:10:07,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 14:10:07,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 182 [2022-12-13 14:10:07,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 239 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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 14:10:07,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:10:07,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 182 [2022-12-13 14:10:07,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:10:07,136 INFO L130 PetriNetUnfolder]: 115/240 cut-off events. [2022-12-13 14:10:07,136 INFO L131 PetriNetUnfolder]: For 386/400 co-relation queries the response was YES. [2022-12-13 14:10:07,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 935 conditions, 240 events. 115/240 cut-off events. For 386/400 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 880 event pairs, 28 based on Foata normal form. 54/293 useless extension candidates. Maximal degree in co-relation 909. Up to 115 conditions per place. [2022-12-13 14:10:07,138 INFO L137 encePairwiseOnDemand]: 177/182 looper letters, 51 selfloop transitions, 4 changer transitions 1/59 dead transitions. [2022-12-13 14:10:07,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 59 transitions, 472 flow [2022-12-13 14:10:07,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 14:10:07,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 14:10:07,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions. [2022-12-13 14:10:07,139 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.489010989010989 [2022-12-13 14:10:07,139 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 356 transitions. [2022-12-13 14:10:07,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 356 transitions. [2022-12-13 14:10:07,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:10:07,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 356 transitions. [2022-12-13 14:10:07,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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 14:10:07,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 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 14:10:07,141 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 182.0) internal successors, (910), 5 states have internal predecessors, (910), 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 14:10:07,141 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 239 flow. Second operand 4 states and 356 transitions. [2022-12-13 14:10:07,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 59 transitions, 472 flow [2022-12-13 14:10:07,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 59 transitions, 446 flow, removed 13 selfloop flow, removed 4 redundant places. [2022-12-13 14:10:07,144 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 240 flow [2022-12-13 14:10:07,144 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=240, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2022-12-13 14:10:07,145 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 20 predicate places. [2022-12-13 14:10:07,145 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 240 flow [2022-12-13 14:10:07,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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 14:10:07,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:10:07,145 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:10:07,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 14:10:07,145 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:10:07,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:10:07,146 INFO L85 PathProgramCache]: Analyzing trace with hash -210301325, now seen corresponding path program 1 times [2022-12-13 14:10:07,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:10:07,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585009195] [2022-12-13 14:10:07,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:10:07,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:10:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:10:08,393 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 14:10:08,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:10:08,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585009195] [2022-12-13 14:10:08,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585009195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:10:08,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:10:08,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:10:08,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609840692] [2022-12-13 14:10:08,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:10:08,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 14:10:08,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:10:08,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 14:10:08,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:10:08,455 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 182 [2022-12-13 14:10:08,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 240 flow. Second operand has 9 states, 9 states have (on average 76.55555555555556) internal successors, (689), 9 states have internal predecessors, (689), 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 14:10:08,456 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:10:08,456 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 182 [2022-12-13 14:10:08,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:10:08,643 INFO L130 PetriNetUnfolder]: 64/155 cut-off events. [2022-12-13 14:10:08,643 INFO L131 PetriNetUnfolder]: For 218/225 co-relation queries the response was YES. [2022-12-13 14:10:08,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 670 conditions, 155 events. 64/155 cut-off events. For 218/225 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 475 event pairs, 21 based on Foata normal form. 11/166 useless extension candidates. Maximal degree in co-relation 644. Up to 130 conditions per place. [2022-12-13 14:10:08,644 INFO L137 encePairwiseOnDemand]: 175/182 looper letters, 32 selfloop transitions, 9 changer transitions 4/48 dead transitions. [2022-12-13 14:10:08,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 48 transitions, 384 flow [2022-12-13 14:10:08,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:10:08,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 14:10:08,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 636 transitions. [2022-12-13 14:10:08,647 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4368131868131868 [2022-12-13 14:10:08,647 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 636 transitions. [2022-12-13 14:10:08,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 636 transitions. [2022-12-13 14:10:08,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:10:08,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 636 transitions. [2022-12-13 14:10:08,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 79.5) internal successors, (636), 8 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:10:08,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 182.0) internal successors, (1638), 9 states have internal predecessors, (1638), 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 14:10:08,652 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 182.0) internal successors, (1638), 9 states have internal predecessors, (1638), 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 14:10:08,652 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 240 flow. Second operand 8 states and 636 transitions. [2022-12-13 14:10:08,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 48 transitions, 384 flow [2022-12-13 14:10:08,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 48 transitions, 370 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-12-13 14:10:08,655 INFO L231 Difference]: Finished difference. Result has 55 places, 38 transitions, 257 flow [2022-12-13 14:10:08,655 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=257, PETRI_PLACES=55, PETRI_TRANSITIONS=38} [2022-12-13 14:10:08,656 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 28 predicate places. [2022-12-13 14:10:08,656 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 38 transitions, 257 flow [2022-12-13 14:10:08,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.55555555555556) internal successors, (689), 9 states have internal predecessors, (689), 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 14:10:08,656 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:10:08,656 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:10:08,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 14:10:08,657 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:10:08,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:10:08,657 INFO L85 PathProgramCache]: Analyzing trace with hash -552953819, now seen corresponding path program 1 times [2022-12-13 14:10:08,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:10:08,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389293015] [2022-12-13 14:10:08,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:10:08,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:10:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:10:10,233 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 14:10:10,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:10:10,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389293015] [2022-12-13 14:10:10,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389293015] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:10:10,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:10:10,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:10:10,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590334034] [2022-12-13 14:10:10,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:10:10,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:10:10,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:10:10,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:10:10,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:10:10,369 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2022-12-13 14:10:10,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 38 transitions, 257 flow. Second operand has 10 states, 10 states have (on average 77.5) internal successors, (775), 10 states have internal predecessors, (775), 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 14:10:10,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:10:10,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2022-12-13 14:10:10,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:10:10,920 INFO L130 PetriNetUnfolder]: 83/196 cut-off events. [2022-12-13 14:10:10,920 INFO L131 PetriNetUnfolder]: For 327/338 co-relation queries the response was YES. [2022-12-13 14:10:10,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 867 conditions, 196 events. 83/196 cut-off events. For 327/338 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 699 event pairs, 7 based on Foata normal form. 15/211 useless extension candidates. Maximal degree in co-relation 838. Up to 119 conditions per place. [2022-12-13 14:10:10,921 INFO L137 encePairwiseOnDemand]: 173/182 looper letters, 44 selfloop transitions, 24 changer transitions 4/75 dead transitions. [2022-12-13 14:10:10,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 75 transitions, 629 flow [2022-12-13 14:10:10,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 14:10:10,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 14:10:10,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1039 transitions. [2022-12-13 14:10:10,927 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43913778529163144 [2022-12-13 14:10:10,927 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1039 transitions. [2022-12-13 14:10:10,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1039 transitions. [2022-12-13 14:10:10,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:10:10,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1039 transitions. [2022-12-13 14:10:10,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 79.92307692307692) internal successors, (1039), 13 states have internal predecessors, (1039), 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 14:10:10,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 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 14:10:10,931 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 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 14:10:10,931 INFO L175 Difference]: Start difference. First operand has 55 places, 38 transitions, 257 flow. Second operand 13 states and 1039 transitions. [2022-12-13 14:10:10,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 75 transitions, 629 flow [2022-12-13 14:10:10,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 601 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-12-13 14:10:10,934 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 452 flow [2022-12-13 14:10:10,935 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=452, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2022-12-13 14:10:10,935 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 37 predicate places. [2022-12-13 14:10:10,935 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 452 flow [2022-12-13 14:10:10,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.5) internal successors, (775), 10 states have internal predecessors, (775), 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 14:10:10,936 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:10:10,936 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:10:10,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:10:10,936 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:10:10,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:10:10,936 INFO L85 PathProgramCache]: Analyzing trace with hash -30852897, now seen corresponding path program 2 times [2022-12-13 14:10:10,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:10:10,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860243247] [2022-12-13 14:10:10,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:10:10,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:10:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:10:11,990 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 14:10:11,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:10:11,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860243247] [2022-12-13 14:10:11,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860243247] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:10:11,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:10:11,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:10:11,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313072063] [2022-12-13 14:10:11,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:10:11,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:10:11,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:10:11,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:10:11,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:10:12,076 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2022-12-13 14:10:12,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 452 flow. Second operand has 10 states, 10 states have (on average 77.5) internal successors, (775), 10 states have internal predecessors, (775), 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 14:10:12,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:10:12,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2022-12-13 14:10:12,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:10:12,479 INFO L130 PetriNetUnfolder]: 112/271 cut-off events. [2022-12-13 14:10:12,479 INFO L131 PetriNetUnfolder]: For 775/788 co-relation queries the response was YES. [2022-12-13 14:10:12,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1325 conditions, 271 events. 112/271 cut-off events. For 775/788 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1135 event pairs, 7 based on Foata normal form. 20/291 useless extension candidates. Maximal degree in co-relation 1293. Up to 142 conditions per place. [2022-12-13 14:10:12,482 INFO L137 encePairwiseOnDemand]: 173/182 looper letters, 49 selfloop transitions, 40 changer transitions 8/100 dead transitions. [2022-12-13 14:10:12,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 100 transitions, 949 flow [2022-12-13 14:10:12,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 14:10:12,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 14:10:12,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 974 transitions. [2022-12-13 14:10:12,485 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.445970695970696 [2022-12-13 14:10:12,485 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 974 transitions. [2022-12-13 14:10:12,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 974 transitions. [2022-12-13 14:10:12,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:10:12,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 974 transitions. [2022-12-13 14:10:12,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 81.16666666666667) internal successors, (974), 12 states have internal predecessors, (974), 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 14:10:12,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 182.0) internal successors, (2366), 13 states have internal predecessors, (2366), 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 14:10:12,492 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 182.0) internal successors, (2366), 13 states have internal predecessors, (2366), 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 14:10:12,492 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 452 flow. Second operand 12 states and 974 transitions. [2022-12-13 14:10:12,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 100 transitions, 949 flow [2022-12-13 14:10:12,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 100 transitions, 883 flow, removed 27 selfloop flow, removed 6 redundant places. [2022-12-13 14:10:12,498 INFO L231 Difference]: Finished difference. Result has 72 places, 69 transitions, 665 flow [2022-12-13 14:10:12,499 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=665, PETRI_PLACES=72, PETRI_TRANSITIONS=69} [2022-12-13 14:10:12,499 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 45 predicate places. [2022-12-13 14:10:12,499 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 69 transitions, 665 flow [2022-12-13 14:10:12,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.5) internal successors, (775), 10 states have internal predecessors, (775), 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 14:10:12,500 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:10:12,500 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:10:12,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 14:10:12,500 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:10:12,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:10:12,501 INFO L85 PathProgramCache]: Analyzing trace with hash -856472195, now seen corresponding path program 3 times [2022-12-13 14:10:12,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:10:12,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925685326] [2022-12-13 14:10:12,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:10:12,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:10:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:10:12,618 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 14:10:12,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:10:12,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925685326] [2022-12-13 14:10:12,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925685326] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:10:12,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:10:12,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:10:12,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101672507] [2022-12-13 14:10:12,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:10:12,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:10:12,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:10:12,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:10:12,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:10:12,626 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 182 [2022-12-13 14:10:12,626 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 69 transitions, 665 flow. Second operand has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:10:12,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:10:12,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 182 [2022-12-13 14:10:12,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:10:12,715 INFO L130 PetriNetUnfolder]: 72/183 cut-off events. [2022-12-13 14:10:12,715 INFO L131 PetriNetUnfolder]: For 773/783 co-relation queries the response was YES. [2022-12-13 14:10:12,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 978 conditions, 183 events. 72/183 cut-off events. For 773/783 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 733 event pairs, 5 based on Foata normal form. 35/217 useless extension candidates. Maximal degree in co-relation 950. Up to 85 conditions per place. [2022-12-13 14:10:12,717 INFO L137 encePairwiseOnDemand]: 177/182 looper letters, 65 selfloop transitions, 6 changer transitions 13/87 dead transitions. [2022-12-13 14:10:12,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 87 transitions, 1006 flow [2022-12-13 14:10:12,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:10:12,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:10:12,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 426 transitions. [2022-12-13 14:10:12,718 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46813186813186813 [2022-12-13 14:10:12,718 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 426 transitions. [2022-12-13 14:10:12,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 426 transitions. [2022-12-13 14:10:12,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:10:12,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 426 transitions. [2022-12-13 14:10:12,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 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 14:10:12,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 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 14:10:12,722 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 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 14:10:12,722 INFO L175 Difference]: Start difference. First operand has 72 places, 69 transitions, 665 flow. Second operand 5 states and 426 transitions. [2022-12-13 14:10:12,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 87 transitions, 1006 flow [2022-12-13 14:10:12,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 87 transitions, 900 flow, removed 36 selfloop flow, removed 9 redundant places. [2022-12-13 14:10:12,727 INFO L231 Difference]: Finished difference. Result has 67 places, 63 transitions, 564 flow [2022-12-13 14:10:12,727 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=564, PETRI_PLACES=67, PETRI_TRANSITIONS=63} [2022-12-13 14:10:12,728 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 40 predicate places. [2022-12-13 14:10:12,728 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 63 transitions, 564 flow [2022-12-13 14:10:12,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.0) internal successors, (410), 5 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:10:12,728 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:10:12,728 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:10:12,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 14:10:12,729 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:10:12,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:10:12,729 INFO L85 PathProgramCache]: Analyzing trace with hash 41710617, now seen corresponding path program 1 times [2022-12-13 14:10:12,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:10:12,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000292207] [2022-12-13 14:10:12,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:10:12,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:10:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:10:13,458 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 14:10:13,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:10:13,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000292207] [2022-12-13 14:10:13,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000292207] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:10:13,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:10:13,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:10:13,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382321145] [2022-12-13 14:10:13,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:10:13,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:10:13,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:10:13,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:10:13,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:10:13,527 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2022-12-13 14:10:13,528 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 564 flow. Second operand has 10 states, 10 states have (on average 77.7) internal successors, (777), 10 states have internal predecessors, (777), 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 14:10:13,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:10:13,528 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2022-12-13 14:10:13,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:10:13,721 INFO L130 PetriNetUnfolder]: 42/120 cut-off events. [2022-12-13 14:10:13,722 INFO L131 PetriNetUnfolder]: For 387/392 co-relation queries the response was YES. [2022-12-13 14:10:13,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 661 conditions, 120 events. 42/120 cut-off events. For 387/392 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 394 event pairs, 2 based on Foata normal form. 6/126 useless extension candidates. Maximal degree in co-relation 630. Up to 58 conditions per place. [2022-12-13 14:10:13,726 INFO L137 encePairwiseOnDemand]: 173/182 looper letters, 26 selfloop transitions, 30 changer transitions 14/73 dead transitions. [2022-12-13 14:10:13,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 73 transitions, 766 flow [2022-12-13 14:10:13,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:10:13,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 14:10:13,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 799 transitions. [2022-12-13 14:10:13,728 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.439010989010989 [2022-12-13 14:10:13,729 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 799 transitions. [2022-12-13 14:10:13,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 799 transitions. [2022-12-13 14:10:13,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:10:13,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 799 transitions. [2022-12-13 14:10:13,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.9) internal successors, (799), 10 states have internal predecessors, (799), 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 14:10:13,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 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 14:10:13,734 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 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 14:10:13,734 INFO L175 Difference]: Start difference. First operand has 67 places, 63 transitions, 564 flow. Second operand 10 states and 799 transitions. [2022-12-13 14:10:13,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 73 transitions, 766 flow [2022-12-13 14:10:13,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 73 transitions, 678 flow, removed 18 selfloop flow, removed 10 redundant places. [2022-12-13 14:10:13,739 INFO L231 Difference]: Finished difference. Result has 67 places, 55 transitions, 481 flow [2022-12-13 14:10:13,739 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=481, PETRI_PLACES=67, PETRI_TRANSITIONS=55} [2022-12-13 14:10:13,739 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 40 predicate places. [2022-12-13 14:10:13,740 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 55 transitions, 481 flow [2022-12-13 14:10:13,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.7) internal successors, (777), 10 states have internal predecessors, (777), 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 14:10:13,740 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:10:13,740 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:10:13,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 14:10:13,741 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:10:13,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:10:13,741 INFO L85 PathProgramCache]: Analyzing trace with hash -921771517, now seen corresponding path program 2 times [2022-12-13 14:10:13,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:10:13,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097067529] [2022-12-13 14:10:13,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:10:13,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:10:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:10:14,630 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 14:10:14,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:10:14,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097067529] [2022-12-13 14:10:14,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097067529] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:10:14,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:10:14,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:10:14,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814260823] [2022-12-13 14:10:14,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:10:14,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:10:14,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:10:14,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:10:14,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:10:14,724 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2022-12-13 14:10:14,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 481 flow. Second operand has 10 states, 10 states have (on average 77.7) internal successors, (777), 10 states have internal predecessors, (777), 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 14:10:14,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:10:14,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2022-12-13 14:10:14,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:10:14,881 INFO L130 PetriNetUnfolder]: 34/104 cut-off events. [2022-12-13 14:10:14,882 INFO L131 PetriNetUnfolder]: For 246/249 co-relation queries the response was YES. [2022-12-13 14:10:14,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 104 events. 34/104 cut-off events. For 246/249 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 307 event pairs, 5 based on Foata normal form. 4/108 useless extension candidates. Maximal degree in co-relation 501. Up to 46 conditions per place. [2022-12-13 14:10:14,882 INFO L137 encePairwiseOnDemand]: 174/182 looper letters, 20 selfloop transitions, 8 changer transitions 37/67 dead transitions. [2022-12-13 14:10:14,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 67 transitions, 659 flow [2022-12-13 14:10:14,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:10:14,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 14:10:14,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 643 transitions. [2022-12-13 14:10:14,883 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4416208791208791 [2022-12-13 14:10:14,884 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 643 transitions. [2022-12-13 14:10:14,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 643 transitions. [2022-12-13 14:10:14,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:10:14,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 643 transitions. [2022-12-13 14:10:14,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 80.375) internal successors, (643), 8 states have internal predecessors, (643), 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 14:10:14,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 182.0) internal successors, (1638), 9 states have internal predecessors, (1638), 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 14:10:14,886 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 182.0) internal successors, (1638), 9 states have internal predecessors, (1638), 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 14:10:14,886 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 481 flow. Second operand 8 states and 643 transitions. [2022-12-13 14:10:14,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 67 transitions, 659 flow [2022-12-13 14:10:14,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 67 transitions, 582 flow, removed 3 selfloop flow, removed 13 redundant places. [2022-12-13 14:10:14,888 INFO L231 Difference]: Finished difference. Result has 63 places, 29 transitions, 207 flow [2022-12-13 14:10:14,888 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=207, PETRI_PLACES=63, PETRI_TRANSITIONS=29} [2022-12-13 14:10:14,888 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 36 predicate places. [2022-12-13 14:10:14,889 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 29 transitions, 207 flow [2022-12-13 14:10:14,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.7) internal successors, (777), 10 states have internal predecessors, (777), 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 14:10:14,889 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:10:14,889 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:10:14,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 14:10:14,889 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-13 14:10:14,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:10:14,889 INFO L85 PathProgramCache]: Analyzing trace with hash 565590597, now seen corresponding path program 3 times [2022-12-13 14:10:14,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:10:14,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154066417] [2022-12-13 14:10:14,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:10:14,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:10:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:10:15,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:10:15,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:10:15,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154066417] [2022-12-13 14:10:15,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154066417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:10:15,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:10:15,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 14:10:15,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395375720] [2022-12-13 14:10:15,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:10:15,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:10:15,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:10:15,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:10:15,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:10:15,355 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 182 [2022-12-13 14:10:15,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 29 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 states have internal predecessors, (383), 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 14:10:15,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:10:15,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 182 [2022-12-13 14:10:15,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:10:15,426 INFO L130 PetriNetUnfolder]: 14/46 cut-off events. [2022-12-13 14:10:15,426 INFO L131 PetriNetUnfolder]: For 83/83 co-relation queries the response was YES. [2022-12-13 14:10:15,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 46 events. 14/46 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 79 event pairs, 2 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 220. Up to 28 conditions per place. [2022-12-13 14:10:15,427 INFO L137 encePairwiseOnDemand]: 177/182 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2022-12-13 14:10:15,427 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 31 transitions, 287 flow [2022-12-13 14:10:15,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:10:15,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 14:10:15,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 386 transitions. [2022-12-13 14:10:15,429 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42417582417582417 [2022-12-13 14:10:15,429 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 386 transitions. [2022-12-13 14:10:15,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 386 transitions. [2022-12-13 14:10:15,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:10:15,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 386 transitions. [2022-12-13 14:10:15,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 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 14:10:15,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 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 14:10:15,432 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 182.0) internal successors, (1092), 6 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 14:10:15,432 INFO L175 Difference]: Start difference. First operand has 63 places, 29 transitions, 207 flow. Second operand 5 states and 386 transitions. [2022-12-13 14:10:15,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 31 transitions, 287 flow [2022-12-13 14:10:15,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 31 transitions, 204 flow, removed 13 selfloop flow, removed 19 redundant places. [2022-12-13 14:10:15,434 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2022-12-13 14:10:15,434 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2022-12-13 14:10:15,435 INFO L288 CegarLoopForPetriNet]: 27 programPoint places, 13 predicate places. [2022-12-13 14:10:15,435 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2022-12-13 14:10:15,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 states have internal predecessors, (383), 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 14:10:15,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-13 14:10:15,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-13 14:10:15,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-13 14:10:15,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-13 14:10:15,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-13 14:10:15,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 14:10:15,438 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1] [2022-12-13 14:10:15,442 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 14:10:15,442 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:10:15,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:10:15 BasicIcfg [2022-12-13 14:10:15,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:10:15,446 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:10:15,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:10:15,446 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:10:15,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:10:00" (3/4) ... [2022-12-13 14:10:15,448 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 14:10:15,452 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 14:10:15,452 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 14:10:15,456 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-12-13 14:10:15,456 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-13 14:10:15,456 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 14:10:15,456 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 14:10:15,478 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7618a24-a7e1-4767-9821-6c92c23dbc48/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:10:15,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:10:15,478 INFO L158 Benchmark]: Toolchain (without parser) took 15838.00ms. Allocated memory was 121.6MB in the beginning and 264.2MB in the end (delta: 142.6MB). Free memory was 82.2MB in the beginning and 127.1MB in the end (delta: -44.8MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. [2022-12-13 14:10:15,479 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 96.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:10:15,479 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.48ms. Allocated memory is still 121.6MB. Free memory was 82.2MB in the beginning and 54.6MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 14:10:15,479 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.94ms. Allocated memory is still 121.6MB. Free memory was 54.6MB in the beginning and 51.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:10:15,479 INFO L158 Benchmark]: Boogie Preprocessor took 31.51ms. Allocated memory is still 121.6MB. Free memory was 51.2MB in the beginning and 49.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:10:15,479 INFO L158 Benchmark]: RCFGBuilder took 558.87ms. Allocated memory was 121.6MB in the beginning and 151.0MB in the end (delta: 29.4MB). Free memory was 49.1MB in the beginning and 82.1MB in the end (delta: -33.0MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2022-12-13 14:10:15,479 INFO L158 Benchmark]: TraceAbstraction took 14715.19ms. Allocated memory was 151.0MB in the beginning and 264.2MB in the end (delta: 113.2MB). Free memory was 81.7MB in the beginning and 130.2MB in the end (delta: -48.5MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2022-12-13 14:10:15,480 INFO L158 Benchmark]: Witness Printer took 32.49ms. Allocated memory is still 264.2MB. Free memory was 130.2MB in the beginning and 127.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:10:15,481 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 121.6MB. Free memory is still 96.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 441.48ms. Allocated memory is still 121.6MB. Free memory was 82.2MB in the beginning and 54.6MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.94ms. Allocated memory is still 121.6MB. Free memory was 54.6MB in the beginning and 51.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.51ms. Allocated memory is still 121.6MB. Free memory was 51.2MB in the beginning and 49.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 558.87ms. Allocated memory was 121.6MB in the beginning and 151.0MB in the end (delta: 29.4MB). Free memory was 49.1MB in the beginning and 82.1MB in the end (delta: -33.0MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * TraceAbstraction took 14715.19ms. Allocated memory was 151.0MB in the beginning and 264.2MB in the end (delta: 113.2MB). Free memory was 81.7MB in the beginning and 130.2MB in the end (delta: -48.5MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. * Witness Printer took 32.49ms. Allocated memory is still 264.2MB. Free memory was 130.2MB in the beginning and 127.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 100 PlacesBefore, 27 PlacesAfterwards, 95 TransitionsBefore, 21 TransitionsAfterwards, 1292 CoEnabledTransitionPairs, 7 FixpointIterations, 38 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 85 TotalNumberOfCompositions, 3894 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1752, independent: 1574, independent conditional: 0, independent unconditional: 1574, dependent: 178, dependent conditional: 0, dependent unconditional: 178, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 717, independent: 680, independent conditional: 0, independent unconditional: 680, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1752, independent: 894, independent conditional: 0, independent unconditional: 894, dependent: 141, dependent conditional: 0, dependent unconditional: 141, unknown: 717, unknown conditional: 0, unknown unconditional: 717] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 46, Positive conditional cache size: 0, Positive unconditional cache size: 46, 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 - 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 5 procedures, 117 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 634 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 501 mSDsluCounter, 657 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 608 mSDsCounter, 258 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1970 IncrementalHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 258 mSolverCounterUnsat, 49 mSDtfsCounter, 1970 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=665occurred in iteration=8, InterpolantAutomatonStates: 90, 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, 0.4s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 2666 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 14:10:15,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7618a24-a7e1-4767-9821-6c92c23dbc48/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