./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/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_285b8378-e00e-4eec-9f3d-1870735dc7b7/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/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_285b8378-e00e-4eec-9f3d-1870735dc7b7/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 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 --- 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 13:21:39,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:21:39,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:21:39,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:21:39,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:21:39,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:21:39,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:21:39,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:21:39,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:21:39,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:21:39,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:21:39,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:21:39,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:21:39,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:21:39,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:21:39,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:21:39,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:21:39,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:21:39,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:21:39,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:21:39,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:21:39,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:21:39,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:21:39,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:21:39,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:21:39,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:21:39,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:21:39,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:21:39,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:21:39,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:21:39,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:21:39,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:21:39,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:21:39,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:21:39,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:21:39,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:21:39,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:21:39,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:21:39,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:21:39,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:21:39,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:21:39,313 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:21:39,327 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:21:39,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:21:39,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:21:39,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:21:39,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:21:39,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:21:39,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:21:39,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:21:39,328 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:21:39,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:21:39,329 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:21:39,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:21:39,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:21:39,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:21:39,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:21:39,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:21:39,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:21:39,329 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:21:39,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:21:39,329 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:21:39,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:21:39,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:21:39,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:21:39,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:21:39,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:21:39,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:21:39,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:21:39,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:21:39,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:21:39,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:21:39,331 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:21:39,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:21:39,331 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:21:39,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:21:39,331 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:21:39,331 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_285b8378-e00e-4eec-9f3d-1870735dc7b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 [2022-12-13 13:21:39,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:21:39,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:21:39,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:21:39,518 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:21:39,518 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:21:39,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2022-12-13 13:21:42,094 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:21:42,294 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:21:42,294 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2022-12-13 13:21:42,304 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/bin/uautomizer-uyxdKDjOR8/data/6caae923e/4c33841f3fca446a98a7ff5ee4f805a5/FLAG568220eff [2022-12-13 13:21:42,316 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/bin/uautomizer-uyxdKDjOR8/data/6caae923e/4c33841f3fca446a98a7ff5ee4f805a5 [2022-12-13 13:21:42,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:21:42,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:21:42,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:21:42,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:21:42,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:21:42,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:21:42" (1/1) ... [2022-12-13 13:21:42,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cebce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:21:42, skipping insertion in model container [2022-12-13 13:21:42,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:21:42" (1/1) ... [2022-12-13 13:21:42,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:21:42,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:21:42,471 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_285b8378-e00e-4eec-9f3d-1870735dc7b7/sv-benchmarks/c/pthread-wmm/rfi003_tso.i[944,957] [2022-12-13 13:21:42,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,584 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,595 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,595 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,610 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:21:42,624 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:21:42,632 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_285b8378-e00e-4eec-9f3d-1870735dc7b7/sv-benchmarks/c/pthread-wmm/rfi003_tso.i[944,957] [2022-12-13 13:21:42,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,650 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,651 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,651 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,660 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,665 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:21:42,669 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:21:42,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:21:42,688 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:21:42,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:21:42 WrapperNode [2022-12-13 13:21:42,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:21:42,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:21:42,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:21:42,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:21:42,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:21:42" (1/1) ... [2022-12-13 13:21:42,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:21:42" (1/1) ... [2022-12-13 13:21:42,725 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2022-12-13 13:21:42,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:21:42,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:21:42,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:21:42,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:21:42,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:21:42" (1/1) ... [2022-12-13 13:21:42,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:21:42" (1/1) ... [2022-12-13 13:21:42,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:21:42" (1/1) ... [2022-12-13 13:21:42,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:21:42" (1/1) ... [2022-12-13 13:21:42,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:21:42" (1/1) ... [2022-12-13 13:21:42,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:21:42" (1/1) ... [2022-12-13 13:21:42,745 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:21:42" (1/1) ... [2022-12-13 13:21:42,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:21:42" (1/1) ... [2022-12-13 13:21:42,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:21:42,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:21:42,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:21:42,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:21:42,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:21:42" (1/1) ... [2022-12-13 13:21:42,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:21:42,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:21:42,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:21:42,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:21:42,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:21:42,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 13:21:42,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:21:42,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:21:42,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:21:42,809 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 13:21:42,809 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 13:21:42,809 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 13:21:42,810 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 13:21:42,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:21:42,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 13:21:42,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:21:42,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:21:42,811 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 13:21:42,912 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:21:42,914 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:21:43,203 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:21:43,378 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:21:43,378 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:21:43,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:21:43 BoogieIcfgContainer [2022-12-13 13:21:43,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:21:43,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:21:43,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:21:43,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:21:43,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:21:42" (1/3) ... [2022-12-13 13:21:43,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf2941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:21:43, skipping insertion in model container [2022-12-13 13:21:43,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:21:42" (2/3) ... [2022-12-13 13:21:43,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf2941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:21:43, skipping insertion in model container [2022-12-13 13:21:43,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:21:43" (3/3) ... [2022-12-13 13:21:43,386 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2022-12-13 13:21:43,392 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:21:43,400 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:21:43,400 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 13:21:43,400 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:21:43,431 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:21:43,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 99 transitions, 208 flow [2022-12-13 13:21:43,487 INFO L130 PetriNetUnfolder]: 2/97 cut-off events. [2022-12-13 13:21:43,487 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:21:43,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-12-13 13:21:43,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 99 transitions, 208 flow [2022-12-13 13:21:43,493 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 97 transitions, 200 flow [2022-12-13 13:21:43,496 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:21:43,504 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 97 transitions, 200 flow [2022-12-13 13:21:43,506 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 97 transitions, 200 flow [2022-12-13 13:21:43,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 97 transitions, 200 flow [2022-12-13 13:21:43,522 INFO L130 PetriNetUnfolder]: 2/97 cut-off events. [2022-12-13 13:21:43,523 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:21:43,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-12-13 13:21:43,524 INFO L119 LiptonReduction]: Number of co-enabled transitions 1388 [2022-12-13 13:21:45,876 INFO L134 LiptonReduction]: Checked pairs total: 4438 [2022-12-13 13:21:45,877 INFO L136 LiptonReduction]: Total number of compositions: 85 [2022-12-13 13:21:45,889 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:21:45,894 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;@70a2750f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:21:45,894 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-13 13:21:45,898 INFO L130 PetriNetUnfolder]: 1/12 cut-off events. [2022-12-13 13:21:45,898 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:21:45,898 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:21:45,899 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 13:21:45,899 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 13:21:45,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:21:45,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1975771479, now seen corresponding path program 1 times [2022-12-13 13:21:45,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:21:45,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145965264] [2022-12-13 13:21:45,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:21:45,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:21:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:46,252 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 13:21:46,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:21:46,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145965264] [2022-12-13 13:21:46,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145965264] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:21:46,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:21:46,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:21:46,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754790512] [2022-12-13 13:21:46,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:21:46,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:21:46,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:21:46,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:21:46,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:21:46,285 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 184 [2022-12-13 13:21:46,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 13:21:46,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:21:46,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 184 [2022-12-13 13:21:46,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:21:46,458 INFO L130 PetriNetUnfolder]: 380/638 cut-off events. [2022-12-13 13:21:46,458 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 13:21:46,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1290 conditions, 638 events. 380/638 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2625 event pairs, 90 based on Foata normal form. 35/602 useless extension candidates. Maximal degree in co-relation 1280. Up to 466 conditions per place. [2022-12-13 13:21:46,468 INFO L137 encePairwiseOnDemand]: 180/184 looper letters, 24 selfloop transitions, 2 changer transitions 4/31 dead transitions. [2022-12-13 13:21:46,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 128 flow [2022-12-13 13:21:46,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:21:46,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:21:46,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 285 transitions. [2022-12-13 13:21:46,477 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5163043478260869 [2022-12-13 13:21:46,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 285 transitions. [2022-12-13 13:21:46,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 285 transitions. [2022-12-13 13:21:46,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:21:46,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 285 transitions. [2022-12-13 13:21:46,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 13:21:46,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 13:21:46,487 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 13:21:46,489 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 52 flow. Second operand 3 states and 285 transitions. [2022-12-13 13:21:46,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 128 flow [2022-12-13 13:21:46,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 31 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:21:46,492 INFO L231 Difference]: Finished difference. Result has 28 places, 19 transitions, 46 flow [2022-12-13 13:21:46,493 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=28, PETRI_TRANSITIONS=19} [2022-12-13 13:21:46,495 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2022-12-13 13:21:46,496 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 19 transitions, 46 flow [2022-12-13 13:21:46,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 13:21:46,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:21:46,496 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:21:46,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:21:46,496 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 13:21:46,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:21:46,497 INFO L85 PathProgramCache]: Analyzing trace with hash 342154163, now seen corresponding path program 1 times [2022-12-13 13:21:46,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:21:46,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344241536] [2022-12-13 13:21:46,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:21:46,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:21:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:46,643 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 13:21:46,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:21:46,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344241536] [2022-12-13 13:21:46,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344241536] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:21:46,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:21:46,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:21:46,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379353220] [2022-12-13 13:21:46,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:21:46,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:21:46,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:21:46,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:21:46,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:21:46,650 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 184 [2022-12-13 13:21:46,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 19 transitions, 46 flow. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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 13:21:46,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:21:46,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 184 [2022-12-13 13:21:46,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:21:46,830 INFO L130 PetriNetUnfolder]: 248/441 cut-off events. [2022-12-13 13:21:46,831 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-13 13:21:46,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 916 conditions, 441 events. 248/441 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1698 event pairs, 90 based on Foata normal form. 35/475 useless extension candidates. Maximal degree in co-relation 906. Up to 251 conditions per place. [2022-12-13 13:21:46,833 INFO L137 encePairwiseOnDemand]: 180/184 looper letters, 22 selfloop transitions, 2 changer transitions 15/40 dead transitions. [2022-12-13 13:21:46,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 40 transitions, 168 flow [2022-12-13 13:21:46,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:21:46,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:21:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 456 transitions. [2022-12-13 13:21:46,837 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4956521739130435 [2022-12-13 13:21:46,837 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 456 transitions. [2022-12-13 13:21:46,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 456 transitions. [2022-12-13 13:21:46,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:21:46,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 456 transitions. [2022-12-13 13:21:46,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 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 13:21:46,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 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 13:21:46,841 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 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 13:21:46,841 INFO L175 Difference]: Start difference. First operand has 28 places, 19 transitions, 46 flow. Second operand 5 states and 456 transitions. [2022-12-13 13:21:46,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 40 transitions, 168 flow [2022-12-13 13:21:46,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 40 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:21:46,843 INFO L231 Difference]: Finished difference. Result has 31 places, 19 transitions, 54 flow [2022-12-13 13:21:46,843 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, 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=5, PETRI_FLOW=54, PETRI_PLACES=31, PETRI_TRANSITIONS=19} [2022-12-13 13:21:46,844 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2022-12-13 13:21:46,844 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 19 transitions, 54 flow [2022-12-13 13:21:46,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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 13:21:46,844 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:21:46,845 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:21:46,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:21:46,845 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 13:21:46,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:21:46,845 INFO L85 PathProgramCache]: Analyzing trace with hash -609484528, now seen corresponding path program 1 times [2022-12-13 13:21:46,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:21:46,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911522313] [2022-12-13 13:21:46,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:21:46,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:21:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:47,465 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 13:21:47,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:21:47,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911522313] [2022-12-13 13:21:47,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911522313] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:21:47,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:21:47,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:21:47,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846761233] [2022-12-13 13:21:47,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:21:47,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:21:47,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:21:47,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:21:47,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:21:47,512 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 184 [2022-12-13 13:21:47,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 19 transitions, 54 flow. Second operand has 5 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 13:21:47,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:21:47,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 184 [2022-12-13 13:21:47,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:21:47,700 INFO L130 PetriNetUnfolder]: 256/455 cut-off events. [2022-12-13 13:21:47,700 INFO L131 PetriNetUnfolder]: For 99/99 co-relation queries the response was YES. [2022-12-13 13:21:47,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 455 events. 256/455 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1629 event pairs, 125 based on Foata normal form. 24/479 useless extension candidates. Maximal degree in co-relation 1014. Up to 226 conditions per place. [2022-12-13 13:21:47,703 INFO L137 encePairwiseOnDemand]: 180/184 looper letters, 24 selfloop transitions, 2 changer transitions 14/40 dead transitions. [2022-12-13 13:21:47,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 40 transitions, 178 flow [2022-12-13 13:21:47,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:21:47,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:21:47,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 417 transitions. [2022-12-13 13:21:47,705 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4532608695652174 [2022-12-13 13:21:47,705 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 417 transitions. [2022-12-13 13:21:47,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 417 transitions. [2022-12-13 13:21:47,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:21:47,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 417 transitions. [2022-12-13 13:21:47,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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 13:21:47,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 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 13:21:47,710 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 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 13:21:47,710 INFO L175 Difference]: Start difference. First operand has 31 places, 19 transitions, 54 flow. Second operand 5 states and 417 transitions. [2022-12-13 13:21:47,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 40 transitions, 178 flow [2022-12-13 13:21:47,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 40 transitions, 170 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-12-13 13:21:47,713 INFO L231 Difference]: Finished difference. Result has 32 places, 19 transitions, 58 flow [2022-12-13 13:21:47,713 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, 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=5, PETRI_FLOW=58, PETRI_PLACES=32, PETRI_TRANSITIONS=19} [2022-12-13 13:21:47,714 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2022-12-13 13:21:47,714 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 19 transitions, 58 flow [2022-12-13 13:21:47,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 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 13:21:47,715 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:21:47,715 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:21:47,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:21:47,715 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 13:21:47,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:21:47,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1714209182, now seen corresponding path program 1 times [2022-12-13 13:21:47,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:21:47,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210543758] [2022-12-13 13:21:47,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:21:47,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:21:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:48,526 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 13:21:48,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:21:48,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210543758] [2022-12-13 13:21:48,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210543758] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:21:48,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:21:48,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 13:21:48,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684732311] [2022-12-13 13:21:48,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:21:48,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:21:48,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:21:48,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:21:48,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:21:48,568 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 184 [2022-12-13 13:21:48,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 19 transitions, 58 flow. Second operand has 9 states, 9 states have (on average 75.33333333333333) internal successors, (678), 9 states have internal predecessors, (678), 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 13:21:48,569 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:21:48,569 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 184 [2022-12-13 13:21:48,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:21:48,773 INFO L130 PetriNetUnfolder]: 184/342 cut-off events. [2022-12-13 13:21:48,773 INFO L131 PetriNetUnfolder]: For 92/92 co-relation queries the response was YES. [2022-12-13 13:21:48,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 342 events. 184/342 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1254 event pairs, 141 based on Foata normal form. 18/360 useless extension candidates. Maximal degree in co-relation 786. Up to 301 conditions per place. [2022-12-13 13:21:48,774 INFO L137 encePairwiseOnDemand]: 175/184 looper letters, 24 selfloop transitions, 9 changer transitions 9/43 dead transitions. [2022-12-13 13:21:48,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 43 transitions, 200 flow [2022-12-13 13:21:48,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:21:48,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 13:21:48,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 638 transitions. [2022-12-13 13:21:48,776 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43342391304347827 [2022-12-13 13:21:48,776 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 638 transitions. [2022-12-13 13:21:48,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 638 transitions. [2022-12-13 13:21:48,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:21:48,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 638 transitions. [2022-12-13 13:21:48,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 79.75) internal successors, (638), 8 states have internal predecessors, (638), 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 13:21:48,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 184.0) internal successors, (1656), 9 states have internal predecessors, (1656), 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 13:21:48,780 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 184.0) internal successors, (1656), 9 states have internal predecessors, (1656), 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 13:21:48,780 INFO L175 Difference]: Start difference. First operand has 32 places, 19 transitions, 58 flow. Second operand 8 states and 638 transitions. [2022-12-13 13:21:48,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 43 transitions, 200 flow [2022-12-13 13:21:48,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 43 transitions, 183 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-12-13 13:21:48,781 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 115 flow [2022-12-13 13:21:48,781 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=115, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2022-12-13 13:21:48,782 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 9 predicate places. [2022-12-13 13:21:48,782 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 115 flow [2022-12-13 13:21:48,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 75.33333333333333) internal successors, (678), 9 states have internal predecessors, (678), 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 13:21:48,782 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:21:48,782 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:21:48,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:21:48,783 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 13:21:48,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:21:48,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1521535939, now seen corresponding path program 1 times [2022-12-13 13:21:48,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:21:48,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596133916] [2022-12-13 13:21:48,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:21:48,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:21:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:48,915 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 13:21:48,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:21:48,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596133916] [2022-12-13 13:21:48,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596133916] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:21:48,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:21:48,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:21:48,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772718653] [2022-12-13 13:21:48,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:21:48,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:21:48,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:21:48,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:21:48,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:21:48,920 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2022-12-13 13:21:48,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 115 flow. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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 13:21:48,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:21:48,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2022-12-13 13:21:48,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:21:48,995 INFO L130 PetriNetUnfolder]: 64/148 cut-off events. [2022-12-13 13:21:48,995 INFO L131 PetriNetUnfolder]: For 124/124 co-relation queries the response was YES. [2022-12-13 13:21:48,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 148 events. 64/148 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 448 event pairs, 21 based on Foata normal form. 21/168 useless extension candidates. Maximal degree in co-relation 419. Up to 93 conditions per place. [2022-12-13 13:21:48,995 INFO L137 encePairwiseOnDemand]: 180/184 looper letters, 35 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2022-12-13 13:21:48,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 230 flow [2022-12-13 13:21:48,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:21:48,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:21:48,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2022-12-13 13:21:48,997 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5018115942028986 [2022-12-13 13:21:48,997 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2022-12-13 13:21:48,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2022-12-13 13:21:48,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:21:48,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2022-12-13 13:21:48,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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 13:21:48,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 13:21:48,998 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 184.0) internal successors, (736), 4 states have internal predecessors, (736), 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 13:21:48,998 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 115 flow. Second operand 3 states and 277 transitions. [2022-12-13 13:21:48,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 230 flow [2022-12-13 13:21:48,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 39 transitions, 228 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 13:21:48,999 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 132 flow [2022-12-13 13:21:49,000 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2022-12-13 13:21:49,000 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 9 predicate places. [2022-12-13 13:21:49,000 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 132 flow [2022-12-13 13:21:49,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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 13:21:49,000 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:21:49,000 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:21:49,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:21:49,001 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 13:21:49,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:21:49,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1348431175, now seen corresponding path program 1 times [2022-12-13 13:21:49,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:21:49,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817122302] [2022-12-13 13:21:49,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:21:49,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:21:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:49,931 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 13:21:49,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:21:49,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817122302] [2022-12-13 13:21:49,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817122302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:21:49,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:21:49,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 13:21:49,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238798512] [2022-12-13 13:21:49,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:21:49,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:21:49,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:21:49,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:21:49,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:21:49,994 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 184 [2022-12-13 13:21:49,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 132 flow. Second operand has 9 states, 9 states have (on average 75.55555555555556) internal successors, (680), 9 states have internal predecessors, (680), 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 13:21:49,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:21:49,995 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 184 [2022-12-13 13:21:49,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:21:50,323 INFO L130 PetriNetUnfolder]: 62/152 cut-off events. [2022-12-13 13:21:50,323 INFO L131 PetriNetUnfolder]: For 91/91 co-relation queries the response was YES. [2022-12-13 13:21:50,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 152 events. 62/152 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 475 event pairs, 36 based on Foata normal form. 5/157 useless extension candidates. Maximal degree in co-relation 461. Up to 131 conditions per place. [2022-12-13 13:21:50,324 INFO L137 encePairwiseOnDemand]: 176/184 looper letters, 24 selfloop transitions, 11 changer transitions 5/41 dead transitions. [2022-12-13 13:21:50,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 41 transitions, 257 flow [2022-12-13 13:21:50,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:21:50,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:21:50,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 705 transitions. [2022-12-13 13:21:50,327 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4257246376811594 [2022-12-13 13:21:50,327 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 705 transitions. [2022-12-13 13:21:50,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 705 transitions. [2022-12-13 13:21:50,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:21:50,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 705 transitions. [2022-12-13 13:21:50,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 78.33333333333333) internal successors, (705), 9 states have internal predecessors, (705), 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 13:21:50,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 184.0) internal successors, (1840), 10 states have internal predecessors, (1840), 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 13:21:50,333 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 184.0) internal successors, (1840), 10 states have internal predecessors, (1840), 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 13:21:50,333 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 132 flow. Second operand 9 states and 705 transitions. [2022-12-13 13:21:50,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 41 transitions, 257 flow [2022-12-13 13:21:50,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 253 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:21:50,335 INFO L231 Difference]: Finished difference. Result has 49 places, 31 transitions, 170 flow [2022-12-13 13:21:50,335 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=170, PETRI_PLACES=49, PETRI_TRANSITIONS=31} [2022-12-13 13:21:50,336 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2022-12-13 13:21:50,336 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 31 transitions, 170 flow [2022-12-13 13:21:50,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 75.55555555555556) internal successors, (680), 9 states have internal predecessors, (680), 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 13:21:50,337 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:21:50,337 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:21:50,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:21:50,337 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 13:21:50,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:21:50,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1486063308, now seen corresponding path program 1 times [2022-12-13 13:21:50,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:21:50,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225449863] [2022-12-13 13:21:50,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:21:50,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:21:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:51,141 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 13:21:51,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:21:51,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225449863] [2022-12-13 13:21:51,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225449863] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:21:51,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:21:51,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 13:21:51,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254042245] [2022-12-13 13:21:51,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:21:51,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:21:51,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:21:51,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:21:51,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:21:51,183 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 184 [2022-12-13 13:21:51,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 31 transitions, 170 flow. Second operand has 9 states, 9 states have (on average 79.66666666666667) internal successors, (717), 9 states have internal predecessors, (717), 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 13:21:51,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:21:51,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 184 [2022-12-13 13:21:51,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:21:51,525 INFO L130 PetriNetUnfolder]: 93/225 cut-off events. [2022-12-13 13:21:51,525 INFO L131 PetriNetUnfolder]: For 231/231 co-relation queries the response was YES. [2022-12-13 13:21:51,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 773 conditions, 225 events. 93/225 cut-off events. For 231/231 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 884 event pairs, 31 based on Foata normal form. 5/230 useless extension candidates. Maximal degree in co-relation 749. Up to 91 conditions per place. [2022-12-13 13:21:51,526 INFO L137 encePairwiseOnDemand]: 175/184 looper letters, 42 selfloop transitions, 16 changer transitions 10/69 dead transitions. [2022-12-13 13:21:51,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 69 transitions, 463 flow [2022-12-13 13:21:51,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:21:51,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:21:51,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 762 transitions. [2022-12-13 13:21:51,528 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4601449275362319 [2022-12-13 13:21:51,528 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 762 transitions. [2022-12-13 13:21:51,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 762 transitions. [2022-12-13 13:21:51,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:21:51,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 762 transitions. [2022-12-13 13:21:51,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 84.66666666666667) internal successors, (762), 9 states have internal predecessors, (762), 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 13:21:51,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 184.0) internal successors, (1840), 10 states have internal predecessors, (1840), 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 13:21:51,531 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 184.0) internal successors, (1840), 10 states have internal predecessors, (1840), 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 13:21:51,531 INFO L175 Difference]: Start difference. First operand has 49 places, 31 transitions, 170 flow. Second operand 9 states and 762 transitions. [2022-12-13 13:21:51,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 69 transitions, 463 flow [2022-12-13 13:21:51,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 69 transitions, 424 flow, removed 8 selfloop flow, removed 7 redundant places. [2022-12-13 13:21:51,533 INFO L231 Difference]: Finished difference. Result has 53 places, 36 transitions, 222 flow [2022-12-13 13:21:51,533 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=222, PETRI_PLACES=53, PETRI_TRANSITIONS=36} [2022-12-13 13:21:51,534 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 24 predicate places. [2022-12-13 13:21:51,534 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 36 transitions, 222 flow [2022-12-13 13:21:51,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 79.66666666666667) internal successors, (717), 9 states have internal predecessors, (717), 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 13:21:51,534 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:21:51,534 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:21:51,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:21:51,534 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 13:21:51,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:21:51,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1211091910, now seen corresponding path program 2 times [2022-12-13 13:21:51,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:21:51,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105512535] [2022-12-13 13:21:51,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:21:51,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:21:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:52,373 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 13:21:52,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:21:52,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105512535] [2022-12-13 13:21:52,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105512535] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:21:52,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:21:52,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:21:52,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848429242] [2022-12-13 13:21:52,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:21:52,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:21:52,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:21:52,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:21:52,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:21:52,416 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 184 [2022-12-13 13:21:52,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 36 transitions, 222 flow. Second operand has 8 states, 8 states have (on average 79.875) internal successors, (639), 8 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:21:52,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:21:52,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 184 [2022-12-13 13:21:52,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:21:52,731 INFO L130 PetriNetUnfolder]: 118/299 cut-off events. [2022-12-13 13:21:52,731 INFO L131 PetriNetUnfolder]: For 513/513 co-relation queries the response was YES. [2022-12-13 13:21:52,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1123 conditions, 299 events. 118/299 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1332 event pairs, 24 based on Foata normal form. 4/303 useless extension candidates. Maximal degree in co-relation 1097. Up to 166 conditions per place. [2022-12-13 13:21:52,732 INFO L137 encePairwiseOnDemand]: 174/184 looper letters, 43 selfloop transitions, 27 changer transitions 7/78 dead transitions. [2022-12-13 13:21:52,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 78 transitions, 589 flow [2022-12-13 13:21:52,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 13:21:52,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 13:21:52,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1003 transitions. [2022-12-13 13:21:52,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4542572463768116 [2022-12-13 13:21:52,735 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1003 transitions. [2022-12-13 13:21:52,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1003 transitions. [2022-12-13 13:21:52,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:21:52,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1003 transitions. [2022-12-13 13:21:52,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 83.58333333333333) internal successors, (1003), 12 states have internal predecessors, (1003), 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 13:21:52,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 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 13:21:52,739 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 184.0) internal successors, (2392), 13 states have internal predecessors, (2392), 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 13:21:52,739 INFO L175 Difference]: Start difference. First operand has 53 places, 36 transitions, 222 flow. Second operand 12 states and 1003 transitions. [2022-12-13 13:21:52,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 78 transitions, 589 flow [2022-12-13 13:21:52,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 78 transitions, 553 flow, removed 8 selfloop flow, removed 5 redundant places. [2022-12-13 13:21:52,742 INFO L231 Difference]: Finished difference. Result has 63 places, 49 transitions, 358 flow [2022-12-13 13:21:52,742 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=358, PETRI_PLACES=63, PETRI_TRANSITIONS=49} [2022-12-13 13:21:52,742 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 34 predicate places. [2022-12-13 13:21:52,743 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 49 transitions, 358 flow [2022-12-13 13:21:52,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 79.875) internal successors, (639), 8 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:21:52,743 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:21:52,743 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:21:52,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 13:21:52,743 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 13:21:52,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:21:52,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1026590888, now seen corresponding path program 3 times [2022-12-13 13:21:52,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:21:52,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591992658] [2022-12-13 13:21:52,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:21:52,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:21:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:52,851 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 13:21:52,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:21:52,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591992658] [2022-12-13 13:21:52,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591992658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:21:52,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:21:52,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:21:52,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484714581] [2022-12-13 13:21:52,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:21:52,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:21:52,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:21:52,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:21:52,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:21:52,857 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 184 [2022-12-13 13:21:52,858 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 49 transitions, 358 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 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 13:21:52,858 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:21:52,858 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 184 [2022-12-13 13:21:52,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:21:52,932 INFO L130 PetriNetUnfolder]: 52/153 cut-off events. [2022-12-13 13:21:52,933 INFO L131 PetriNetUnfolder]: For 408/408 co-relation queries the response was YES. [2022-12-13 13:21:52,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 662 conditions, 153 events. 52/153 cut-off events. For 408/408 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 590 event pairs, 11 based on Foata normal form. 25/177 useless extension candidates. Maximal degree in co-relation 637. Up to 86 conditions per place. [2022-12-13 13:21:52,933 INFO L137 encePairwiseOnDemand]: 180/184 looper letters, 37 selfloop transitions, 5 changer transitions 20/63 dead transitions. [2022-12-13 13:21:52,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 63 transitions, 592 flow [2022-12-13 13:21:52,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:21:52,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:21:52,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2022-12-13 13:21:52,935 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48777173913043476 [2022-12-13 13:21:52,935 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 359 transitions. [2022-12-13 13:21:52,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 359 transitions. [2022-12-13 13:21:52,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:21:52,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 359 transitions. [2022-12-13 13:21:52,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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 13:21:52,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 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 13:21:52,936 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 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 13:21:52,936 INFO L175 Difference]: Start difference. First operand has 63 places, 49 transitions, 358 flow. Second operand 4 states and 359 transitions. [2022-12-13 13:21:52,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 63 transitions, 592 flow [2022-12-13 13:21:52,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 63 transitions, 495 flow, removed 38 selfloop flow, removed 9 redundant places. [2022-12-13 13:21:52,939 INFO L231 Difference]: Finished difference. Result has 55 places, 36 transitions, 218 flow [2022-12-13 13:21:52,939 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=55, PETRI_TRANSITIONS=36} [2022-12-13 13:21:52,940 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 26 predicate places. [2022-12-13 13:21:52,940 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 36 transitions, 218 flow [2022-12-13 13:21:52,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 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 13:21:52,940 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:21:52,940 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:21:52,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 13:21:52,940 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 13:21:52,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:21:52,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1417951024, now seen corresponding path program 1 times [2022-12-13 13:21:52,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:21:52,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486320842] [2022-12-13 13:21:52,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:21:52,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:21:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:53,343 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 13:21:53,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:21:53,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486320842] [2022-12-13 13:21:53,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486320842] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:21:53,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:21:53,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:21:53,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658894774] [2022-12-13 13:21:53,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:21:53,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:21:53,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:21:53,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:21:53,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:21:53,390 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 184 [2022-12-13 13:21:53,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 36 transitions, 218 flow. Second operand has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 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 13:21:53,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:21:53,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 184 [2022-12-13 13:21:53,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:21:53,525 INFO L130 PetriNetUnfolder]: 23/65 cut-off events. [2022-12-13 13:21:53,526 INFO L131 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2022-12-13 13:21:53,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 65 events. 23/65 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 139 event pairs, 0 based on Foata normal form. 1/66 useless extension candidates. Maximal degree in co-relation 251. Up to 29 conditions per place. [2022-12-13 13:21:53,526 INFO L137 encePairwiseOnDemand]: 177/184 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2022-12-13 13:21:53,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 39 transitions, 320 flow [2022-12-13 13:21:53,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:21:53,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 13:21:53,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 536 transitions. [2022-12-13 13:21:53,527 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4161490683229814 [2022-12-13 13:21:53,527 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 536 transitions. [2022-12-13 13:21:53,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 536 transitions. [2022-12-13 13:21:53,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:21:53,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 536 transitions. [2022-12-13 13:21:53,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 76.57142857142857) internal successors, (536), 7 states have internal predecessors, (536), 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 13:21:53,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 184.0) internal successors, (1472), 8 states have internal predecessors, (1472), 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 13:21:53,529 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 184.0) internal successors, (1472), 8 states have internal predecessors, (1472), 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 13:21:53,529 INFO L175 Difference]: Start difference. First operand has 55 places, 36 transitions, 218 flow. Second operand 7 states and 536 transitions. [2022-12-13 13:21:53,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 39 transitions, 320 flow [2022-12-13 13:21:53,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 264 flow, removed 12 selfloop flow, removed 10 redundant places. [2022-12-13 13:21:53,530 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2022-12-13 13:21:53,531 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=184, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2022-12-13 13:21:53,531 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 17 predicate places. [2022-12-13 13:21:53,531 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2022-12-13 13:21:53,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 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 13:21:53,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-13 13:21:53,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-13 13:21:53,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-13 13:21:53,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-13 13:21:53,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-13 13:21:53,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 13:21:53,534 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:21:53,537 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:21:53,537 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:21:53,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:21:53 BasicIcfg [2022-12-13 13:21:53,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:21:53,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:21:53,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:21:53,540 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:21:53,540 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:21:43" (3/4) ... [2022-12-13 13:21:53,542 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 13:21:53,545 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 13:21:53,546 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 13:21:53,548 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2022-12-13 13:21:53,549 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-13 13:21:53,549 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 13:21:53,549 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:21:53,571 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:21:53,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:21:53,572 INFO L158 Benchmark]: Toolchain (without parser) took 11252.29ms. Allocated memory was 117.4MB in the beginning and 249.6MB in the end (delta: 132.1MB). Free memory was 86.7MB in the beginning and 187.1MB in the end (delta: -100.4MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2022-12-13 13:21:53,572 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:21:53,572 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.36ms. Allocated memory is still 117.4MB. Free memory was 86.7MB in the beginning and 58.5MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 13:21:53,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.14ms. Allocated memory is still 117.4MB. Free memory was 58.5MB in the beginning and 55.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:21:53,572 INFO L158 Benchmark]: Boogie Preprocessor took 22.38ms. Allocated memory is still 117.4MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:21:53,573 INFO L158 Benchmark]: RCFGBuilder took 630.89ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 53.3MB in the beginning and 82.3MB in the end (delta: -29.0MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2022-12-13 13:21:53,573 INFO L158 Benchmark]: TraceAbstraction took 10158.23ms. Allocated memory was 142.6MB in the beginning and 249.6MB in the end (delta: 107.0MB). Free memory was 81.4MB in the beginning and 190.3MB in the end (delta: -108.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:21:53,573 INFO L158 Benchmark]: Witness Printer took 31.40ms. Allocated memory is still 249.6MB. Free memory was 190.3MB in the beginning and 187.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:21:53,574 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 96.5MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.36ms. Allocated memory is still 117.4MB. Free memory was 86.7MB in the beginning and 58.5MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.14ms. Allocated memory is still 117.4MB. Free memory was 58.5MB in the beginning and 55.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.38ms. Allocated memory is still 117.4MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 630.89ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 53.3MB in the beginning and 82.3MB in the end (delta: -29.0MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * TraceAbstraction took 10158.23ms. Allocated memory was 142.6MB in the beginning and 249.6MB in the end (delta: 107.0MB). Free memory was 81.4MB in the beginning and 190.3MB in the end (delta: -108.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 31.40ms. Allocated memory is still 249.6MB. Free memory was 190.3MB in the beginning and 187.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 102 PlacesBefore, 29 PlacesAfterwards, 97 TransitionsBefore, 23 TransitionsAfterwards, 1388 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 85 TotalNumberOfCompositions, 4438 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1915, independent: 1735, independent conditional: 0, independent unconditional: 1735, dependent: 180, dependent conditional: 0, dependent unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 790, independent: 751, independent conditional: 0, independent unconditional: 751, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1915, independent: 984, independent conditional: 0, independent unconditional: 984, dependent: 141, dependent conditional: 0, dependent unconditional: 141, unknown: 790, unknown conditional: 0, unknown unconditional: 790] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, 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, 120 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: 10.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 449 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 362 mSDsluCounter, 361 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 322 mSDsCounter, 158 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1149 IncrementalHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 158 mSolverCounterUnsat, 39 mSDtfsCounter, 1149 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=358occurred in iteration=8, InterpolantAutomatonStates: 65, 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, 0.3s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 1504 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 13:21:53,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_285b8378-e00e-4eec-9f3d-1870735dc7b7/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