./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi010.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi010.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 582aea72bf150e6792f444cf029a22a25cb033a365b198fc215f246088fb4d39 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:36:20,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:36:20,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:36:20,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:36:20,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:36:20,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:36:20,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:36:20,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:36:20,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:36:20,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:36:20,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:36:20,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:36:20,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:36:20,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:36:20,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:36:20,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:36:20,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:36:20,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:36:20,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:36:20,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:36:20,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:36:20,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:36:20,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:36:20,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:36:20,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:36:20,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:36:20,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:36:20,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:36:20,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:36:20,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:36:20,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:36:20,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:36:20,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:36:20,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:36:20,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:36:20,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:36:20,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:36:20,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:36:20,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:36:20,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:36:20,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:36:20,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:36:20,460 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:36:20,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:36:20,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:36:20,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:36:20,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:36:20,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:36:20,462 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:36:20,462 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:36:20,462 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:36:20,462 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:36:20,462 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:36:20,463 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:36:20,463 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:36:20,463 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:36:20,463 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:36:20,463 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:36:20,463 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:36:20,464 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:36:20,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:36:20,465 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:36:20,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:36:20,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:36:20,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:36:20,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:36:20,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:36:20,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:36:20,466 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:36:20,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:36:20,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:36:20,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:36:20,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:36:20,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:36:20,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:36:20,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:36:20,467 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:36:20,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:36:20,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:36:20,468 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:36:20,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:36:20,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:36:20,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:36:20,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 582aea72bf150e6792f444cf029a22a25cb033a365b198fc215f246088fb4d39 [2022-11-25 22:36:20,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:36:20,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:36:20,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:36:20,829 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:36:20,830 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:36:20,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-wmm/rfi010.i [2022-11-25 22:36:23,987 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:36:24,269 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:36:24,276 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/sv-benchmarks/c/pthread-wmm/rfi010.i [2022-11-25 22:36:24,293 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/data/731a7814f/917a6d02611641b9b5a6f58769a04ccb/FLAG340abcbaa [2022-11-25 22:36:24,308 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/data/731a7814f/917a6d02611641b9b5a6f58769a04ccb [2022-11-25 22:36:24,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:36:24,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:36:24,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:36:24,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:36:24,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:36:24,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:36:24" (1/1) ... [2022-11-25 22:36:24,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ded842c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:24, skipping insertion in model container [2022-11-25 22:36:24,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:36:24" (1/1) ... [2022-11-25 22:36:24,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:36:24,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:36:24,585 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_575459db-4ee0-456e-893e-a2aa8b668d4d/sv-benchmarks/c/pthread-wmm/rfi010.i[983,996] [2022-11-25 22:36:24,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:24,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:24,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:24,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:24,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:24,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:24,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:24,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:24,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:24,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:24,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:24,896 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:24,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:24,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:24,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:24,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:24,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:24,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:24,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:24,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:24,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:24,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:24,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:24,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:24,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:24,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:24,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:36:24,971 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:36:24,986 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_575459db-4ee0-456e-893e-a2aa8b668d4d/sv-benchmarks/c/pthread-wmm/rfi010.i[983,996] [2022-11-25 22:36:25,027 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:25,030 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:25,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:25,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:25,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:25,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:25,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:25,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:25,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:25,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:25,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:25,057 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:25,058 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:25,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:25,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:25,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:25,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:25,072 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:25,074 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:25,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:25,078 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:25,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:25,087 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:25,088 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:25,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:36:25,091 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:36:25,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:36:25,135 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:36:25,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:25 WrapperNode [2022-11-25 22:36:25,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:36:25,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:36:25,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:36:25,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:36:25,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:25" (1/1) ... [2022-11-25 22:36:25,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:25" (1/1) ... [2022-11-25 22:36:25,247 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 132 [2022-11-25 22:36:25,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:36:25,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:36:25,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:36:25,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:36:25,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:25" (1/1) ... [2022-11-25 22:36:25,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:25" (1/1) ... [2022-11-25 22:36:25,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:25" (1/1) ... [2022-11-25 22:36:25,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:25" (1/1) ... [2022-11-25 22:36:25,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:25" (1/1) ... [2022-11-25 22:36:25,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:25" (1/1) ... [2022-11-25 22:36:25,299 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:25" (1/1) ... [2022-11-25 22:36:25,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:25" (1/1) ... [2022-11-25 22:36:25,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:36:25,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:36:25,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:36:25,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:36:25,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:25" (1/1) ... [2022-11-25 22:36:25,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:36:25,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:36:25,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:36:25,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:36:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:36:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 22:36:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:36:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:36:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:36:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 22:36:25,418 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 22:36:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 22:36:25,419 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 22:36:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:36:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 22:36:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:36:25,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:36:25,421 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 22:36:25,642 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:36:25,644 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:36:26,035 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:36:26,341 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:36:26,341 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:36:26,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:36:26 BoogieIcfgContainer [2022-11-25 22:36:26,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:36:26,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:36:26,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:36:26,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:36:26,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:36:24" (1/3) ... [2022-11-25 22:36:26,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6213f14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:36:26, skipping insertion in model container [2022-11-25 22:36:26,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:25" (2/3) ... [2022-11-25 22:36:26,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6213f14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:36:26, skipping insertion in model container [2022-11-25 22:36:26,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:36:26" (3/3) ... [2022-11-25 22:36:26,355 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi010.i [2022-11-25 22:36:26,365 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 22:36:26,378 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:36:26,378 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:36:26,378 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 22:36:26,432 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 22:36:26,468 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:36:26,486 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 96 transitions, 202 flow [2022-11-25 22:36:26,490 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 96 transitions, 202 flow [2022-11-25 22:36:26,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 96 transitions, 202 flow [2022-11-25 22:36:26,574 INFO L130 PetriNetUnfolder]: 2/94 cut-off events. [2022-11-25 22:36:26,574 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 22:36:26,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2022-11-25 22:36:26,584 INFO L119 LiptonReduction]: Number of co-enabled transitions 1122 [2022-11-25 22:36:31,262 INFO L134 LiptonReduction]: Checked pairs total: 2726 [2022-11-25 22:36:31,262 INFO L136 LiptonReduction]: Total number of compositions: 89 [2022-11-25 22:36:31,272 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 21 transitions, 52 flow [2022-11-25 22:36:31,301 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 158 states, 155 states have (on average 2.574193548387097) internal successors, (399), 157 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:31,321 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:36:31,328 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=FINITE_AUTOMATA, 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;@53a5fcbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:36:31,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-25 22:36:31,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 155 states have (on average 2.574193548387097) internal successors, (399), 157 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:31,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:36:31,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:31,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:36:31,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-25 22:36:31,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:31,344 INFO L85 PathProgramCache]: Analyzing trace with hash 429570996, now seen corresponding path program 1 times [2022-11-25 22:36:31,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:31,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624546870] [2022-11-25 22:36:31,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:31,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:36:31,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:31,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624546870] [2022-11-25 22:36:31,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624546870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:31,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:31,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:36:31,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764389591] [2022-11-25 22:36:31,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:31,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:36:31,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:31,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:36:31,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:31,867 INFO L87 Difference]: Start difference. First operand has 158 states, 155 states have (on average 2.574193548387097) internal successors, (399), 157 states have internal predecessors, (399), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:31,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:31,967 INFO L93 Difference]: Finished difference Result 134 states and 309 transitions. [2022-11-25 22:36:31,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:36:31,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2022-11-25 22:36:31,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:31,985 INFO L225 Difference]: With dead ends: 134 [2022-11-25 22:36:31,985 INFO L226 Difference]: Without dead ends: 130 [2022-11-25 22:36:31,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:36:31,991 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:31,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:36:32,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-25 22:36:32,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2022-11-25 22:36:32,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 2.3410852713178296) internal successors, (302), 129 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 302 transitions. [2022-11-25 22:36:32,065 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 302 transitions. Word has length 5 [2022-11-25 22:36:32,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:32,067 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 302 transitions. [2022-11-25 22:36:32,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:32,069 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 302 transitions. [2022-11-25 22:36:32,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:36:32,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:32,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:32,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:36:32,072 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)] === [2022-11-25 22:36:32,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:32,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1651739127, now seen corresponding path program 1 times [2022-11-25 22:36:32,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:32,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383183181] [2022-11-25 22:36:32,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:32,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:32,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:36:32,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:32,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383183181] [2022-11-25 22:36:32,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383183181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:32,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:32,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:36:32,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069355782] [2022-11-25 22:36:32,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:32,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:36:32,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:32,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:36:32,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:36:32,456 INFO L87 Difference]: Start difference. First operand 130 states and 302 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:32,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:32,607 INFO L93 Difference]: Finished difference Result 146 states and 320 transitions. [2022-11-25 22:36:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:36:32,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2022-11-25 22:36:32,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:32,613 INFO L225 Difference]: With dead ends: 146 [2022-11-25 22:36:32,613 INFO L226 Difference]: Without dead ends: 122 [2022-11-25 22:36:32,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:36:32,615 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:32,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:36:32,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-25 22:36:32,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-11-25 22:36:32,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 2.2975206611570247) internal successors, (278), 121 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:32,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 278 transitions. [2022-11-25 22:36:32,624 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 278 transitions. Word has length 8 [2022-11-25 22:36:32,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:32,624 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 278 transitions. [2022-11-25 22:36:32,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:32,625 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 278 transitions. [2022-11-25 22:36:32,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 22:36:32,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:32,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:32,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:36:32,627 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)] === [2022-11-25 22:36:32,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:32,627 INFO L85 PathProgramCache]: Analyzing trace with hash 945692508, now seen corresponding path program 1 times [2022-11-25 22:36:32,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:32,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592539484] [2022-11-25 22:36:32,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:32,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:32,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:36:32,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:32,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592539484] [2022-11-25 22:36:32,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592539484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:32,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:32,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:36:32,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389287424] [2022-11-25 22:36:32,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:32,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:36:32,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:32,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:36:32,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:36:32,852 INFO L87 Difference]: Start difference. First operand 122 states and 278 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:32,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:32,967 INFO L93 Difference]: Finished difference Result 94 states and 175 transitions. [2022-11-25 22:36:32,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:36:32,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2022-11-25 22:36:32,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:32,968 INFO L225 Difference]: With dead ends: 94 [2022-11-25 22:36:32,968 INFO L226 Difference]: Without dead ends: 70 [2022-11-25 22:36:32,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:36:32,970 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:32,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 5 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:36:32,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-25 22:36:32,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-25 22:36:32,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.7681159420289856) internal successors, (122), 69 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 122 transitions. [2022-11-25 22:36:32,980 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 122 transitions. Word has length 10 [2022-11-25 22:36:32,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:32,981 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 122 transitions. [2022-11-25 22:36:32,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:32,981 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 122 transitions. [2022-11-25 22:36:32,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 22:36:32,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:32,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:32,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:36:32,982 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)] === [2022-11-25 22:36:32,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:32,983 INFO L85 PathProgramCache]: Analyzing trace with hash 676302182, now seen corresponding path program 1 times [2022-11-25 22:36:32,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:32,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869320670] [2022-11-25 22:36:32,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:32,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:33,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:36:33,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:33,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869320670] [2022-11-25 22:36:33,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869320670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:33,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:33,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:36:33,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287761771] [2022-11-25 22:36:33,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:33,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:36:33,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:33,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:36:33,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:36:33,277 INFO L87 Difference]: Start difference. First operand 70 states and 122 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:33,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:33,374 INFO L93 Difference]: Finished difference Result 72 states and 121 transitions. [2022-11-25 22:36:33,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:36:33,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) Word has length 11 [2022-11-25 22:36:33,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:33,377 INFO L225 Difference]: With dead ends: 72 [2022-11-25 22:36:33,377 INFO L226 Difference]: Without dead ends: 66 [2022-11-25 22:36:33,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:36:33,382 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:33,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:36:33,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-25 22:36:33,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-11-25 22:36:33,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.7538461538461538) internal successors, (114), 65 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:33,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 114 transitions. [2022-11-25 22:36:33,404 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 114 transitions. Word has length 11 [2022-11-25 22:36:33,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:33,404 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 114 transitions. [2022-11-25 22:36:33,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:33,406 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 114 transitions. [2022-11-25 22:36:33,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 22:36:33,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:33,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:33,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:36:33,409 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)] === [2022-11-25 22:36:33,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:33,409 INFO L85 PathProgramCache]: Analyzing trace with hash 863856100, now seen corresponding path program 1 times [2022-11-25 22:36:33,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:33,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300668380] [2022-11-25 22:36:33,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:33,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:33,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:36:33,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:33,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300668380] [2022-11-25 22:36:33,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300668380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:33,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:33,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:36:33,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979003969] [2022-11-25 22:36:33,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:33,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:36:33,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:33,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:36:33,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:36:33,743 INFO L87 Difference]: Start difference. First operand 66 states and 114 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:33,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:33,870 INFO L93 Difference]: Finished difference Result 47 states and 74 transitions. [2022-11-25 22:36:33,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:36:33,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) Word has length 13 [2022-11-25 22:36:33,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:33,871 INFO L225 Difference]: With dead ends: 47 [2022-11-25 22:36:33,871 INFO L226 Difference]: Without dead ends: 38 [2022-11-25 22:36:33,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:36:33,872 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:33,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 5 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:36:33,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-25 22:36:33,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-25 22:36:33,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 37 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:33,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 58 transitions. [2022-11-25 22:36:33,875 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 58 transitions. Word has length 13 [2022-11-25 22:36:33,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:33,875 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 58 transitions. [2022-11-25 22:36:33,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:33,876 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 58 transitions. [2022-11-25 22:36:33,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 22:36:33,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:33,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:33,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:36:33,877 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)] === [2022-11-25 22:36:33,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:33,877 INFO L85 PathProgramCache]: Analyzing trace with hash -110638165, now seen corresponding path program 1 times [2022-11-25 22:36:33,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:33,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430926954] [2022-11-25 22:36:33,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:33,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:36:35,662 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:35,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430926954] [2022-11-25 22:36:35,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430926954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:35,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:35,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:36:35,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669281774] [2022-11-25 22:36:35,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:35,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:36:35,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:35,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:36:35,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:36:35,665 INFO L87 Difference]: Start difference. First operand 38 states and 58 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:35,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:35,930 INFO L93 Difference]: Finished difference Result 56 states and 80 transitions. [2022-11-25 22:36:35,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 22:36:35,931 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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) Word has length 16 [2022-11-25 22:36:35,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:35,932 INFO L225 Difference]: With dead ends: 56 [2022-11-25 22:36:35,932 INFO L226 Difference]: Without dead ends: 45 [2022-11-25 22:36:35,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:36:35,933 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 11 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:36:35,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 7 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 22:36:35,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-25 22:36:35,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 34. [2022-11-25 22:36:35,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 33 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:35,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 50 transitions. [2022-11-25 22:36:35,937 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 50 transitions. Word has length 16 [2022-11-25 22:36:35,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:35,937 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 50 transitions. [2022-11-25 22:36:35,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:36:35,938 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 50 transitions. [2022-11-25 22:36:35,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 22:36:35,938 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:35,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:35,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:36:35,939 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)] === [2022-11-25 22:36:35,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:35,940 INFO L85 PathProgramCache]: Analyzing trace with hash -2057947793, now seen corresponding path program 2 times [2022-11-25 22:36:35,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:35,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20462763] [2022-11-25 22:36:35,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:35,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:36:36,020 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:36:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:36:36,123 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:36:36,124 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:36:36,125 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-11-25 22:36:36,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-11-25 22:36:36,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-11-25 22:36:36,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-11-25 22:36:36,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-11-25 22:36:36,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 22:36:36,130 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-11-25 22:36:36,137 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 22:36:36,137 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:36:36,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:36:36 BasicIcfg [2022-11-25 22:36:36,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:36:36,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:36:36,218 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:36:36,218 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:36:36,230 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:36:26" (3/4) ... [2022-11-25 22:36:36,233 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 22:36:36,349 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:36:36,349 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:36:36,350 INFO L158 Benchmark]: Toolchain (without parser) took 12037.41ms. Allocated memory was 136.3MB in the beginning and 272.6MB in the end (delta: 136.3MB). Free memory was 69.3MB in the beginning and 130.7MB in the end (delta: -61.4MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2022-11-25 22:36:36,351 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 136.3MB. Free memory is still 110.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:36:36,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 822.04ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 69.1MB in the beginning and 137.4MB in the end (delta: -68.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2022-11-25 22:36:36,351 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.76ms. Allocated memory is still 188.7MB. Free memory was 137.1MB in the beginning and 134.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:36:36,352 INFO L158 Benchmark]: Boogie Preprocessor took 70.75ms. Allocated memory is still 188.7MB. Free memory was 134.1MB in the beginning and 132.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:36:36,352 INFO L158 Benchmark]: RCFGBuilder took 1025.02ms. Allocated memory is still 188.7MB. Free memory was 132.1MB in the beginning and 132.5MB in the end (delta: -444.0kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 22:36:36,353 INFO L158 Benchmark]: TraceAbstraction took 9870.74ms. Allocated memory was 188.7MB in the beginning and 272.6MB in the end (delta: 83.9MB). Free memory was 131.4MB in the beginning and 138.0MB in the end (delta: -6.6MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. [2022-11-25 22:36:36,353 INFO L158 Benchmark]: Witness Printer took 131.44ms. Allocated memory is still 272.6MB. Free memory was 138.0MB in the beginning and 130.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 22:36:36,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 136.3MB. Free memory is still 110.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 822.04ms. Allocated memory was 136.3MB in the beginning and 188.7MB in the end (delta: 52.4MB). Free memory was 69.1MB in the beginning and 137.4MB in the end (delta: -68.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.76ms. Allocated memory is still 188.7MB. Free memory was 137.1MB in the beginning and 134.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.75ms. Allocated memory is still 188.7MB. Free memory was 134.1MB in the beginning and 132.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1025.02ms. Allocated memory is still 188.7MB. Free memory was 132.1MB in the beginning and 132.5MB in the end (delta: -444.0kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9870.74ms. Allocated memory was 188.7MB in the beginning and 272.6MB in the end (delta: 83.9MB). Free memory was 131.4MB in the beginning and 138.0MB in the end (delta: -6.6MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. * Witness Printer took 131.44ms. Allocated memory is still 272.6MB. Free memory was 138.0MB in the beginning and 130.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.8s, 101 PlacesBefore, 27 PlacesAfterwards, 96 TransitionsBefore, 21 TransitionsAfterwards, 1122 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 89 TotalNumberOfCompositions, 2726 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1579, independent: 1470, independent conditional: 0, independent unconditional: 1470, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 888, independent: 849, independent conditional: 0, independent unconditional: 849, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 888, independent: 831, independent conditional: 0, independent unconditional: 831, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 57, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 441, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 406, dependent conditional: 0, dependent unconditional: 406, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1579, independent: 621, independent conditional: 0, independent unconditional: 621, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 888, unknown conditional: 0, unknown unconditional: 888] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff1_thd0; [L728] 0 _Bool y$r_buff1_thd1; [L729] 0 _Bool y$r_buff1_thd2; [L730] 0 _Bool y$read_delayed; [L731] 0 int *y$read_delayed_var; [L732] 0 int y$w_buff0; [L733] 0 _Bool y$w_buff0_used; [L734] 0 int y$w_buff1; [L735] 0 _Bool y$w_buff1_used; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L823] 0 pthread_t t1761; [L824] FCALL, FORK 0 pthread_create(&t1761, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1761, ((void *)0), P0, ((void *)0))=-2, t1761={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L825] 0 pthread_t t1762; [L826] FCALL, FORK 0 pthread_create(&t1762, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1762, ((void *)0), P1, ((void *)0))=-1, t1761={5:0}, t1762={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L771] 2 y$w_buff1 = y$w_buff0 [L772] 2 y$w_buff0 = 1 [L773] 2 y$w_buff1_used = y$w_buff0_used [L774] 2 y$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L776] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L777] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L778] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L779] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L782] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L783] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L784] 2 y$flush_delayed = weak$$choice2 [L785] 2 y$mem_tmp = y [L786] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L787] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L788] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L789] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L790] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L791] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L792] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L793] 2 __unbuffered_p1_EAX = y [L794] 2 y = y$flush_delayed ? y$mem_tmp : y [L795] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L798] 2 __unbuffered_p1_EBX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L741] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L746] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L747] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L748] 1 y$flush_delayed = weak$$choice2 [L749] 1 y$mem_tmp = y [L750] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L751] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L752] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L753] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L754] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L755] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L756] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L757] 1 __unbuffered_p0_EAX = y [L758] 1 y = y$flush_delayed ? y$mem_tmp : y [L759] 1 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 1 return 0; [L801] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L802] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L803] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L804] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L805] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L808] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 2 return 0; [L828] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L830] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L830] RET 0 assume_abort_if_not(main$tmp_guard0) [L832] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L833] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L834] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L835] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L836] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1761={5:0}, t1762={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L839] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L841] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 826]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 824]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 114 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 9.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 399 IncrementalHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 10 mSDtfsCounter, 399 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 453 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-25 22:36:36,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_575459db-4ee0-456e-893e-a2aa8b668d4d/bin/utaipan-ByfvJB40ur/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE