./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh --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 0d984378a3d93078f60e6a73f83b588890817628b7e21c558fe1824f195f48ce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 08:32:58,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:32:58,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:32:58,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:32:58,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:32:58,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:32:58,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:32:58,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:32:58,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:32:58,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:32:58,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:32:58,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:32:58,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:32:58,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:32:58,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:32:58,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:32:58,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:32:58,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:32:58,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:32:58,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:32:58,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:32:58,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:32:58,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:32:58,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:32:58,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:32:58,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:32:58,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:32:58,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:32:58,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:32:58,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:32:58,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:32:58,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:32:58,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:32:58,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:32:58,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:32:58,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:32:58,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:32:58,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:32:58,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:32:58,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:32:58,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:32:58,985 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:32:59,006 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:32:59,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:32:59,007 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:32:59,007 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:32:59,007 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:32:59,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:32:59,008 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:32:59,008 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:32:59,008 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:32:59,008 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:32:59,009 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:32:59,009 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:32:59,009 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:32:59,009 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:32:59,009 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:32:59,010 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:32:59,010 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:32:59,010 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:32:59,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:32:59,011 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:32:59,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:32:59,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:32:59,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:32:59,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:32:59,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:32:59,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:32:59,012 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:32:59,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:32:59,012 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:32:59,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:32:59,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:32:59,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:32:59,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:32:59,013 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:32:59,014 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:32:59,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:32:59,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:32:59,014 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:32:59,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:32:59,014 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:32:59,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:32:59,015 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_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d984378a3d93078f60e6a73f83b588890817628b7e21c558fe1824f195f48ce [2022-12-14 08:32:59,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:32:59,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:32:59,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:32:59,229 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:32:59,230 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:32:59,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i [2022-12-14 08:33:01,859 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:33:02,048 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:33:02,049 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i [2022-12-14 08:33:02,061 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/data/3fdedc1b1/3b595e377c764745bbeb366950b6b93e/FLAG3c29f891c [2022-12-14 08:33:02,072 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/data/3fdedc1b1/3b595e377c764745bbeb366950b6b93e [2022-12-14 08:33:02,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:33:02,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:33:02,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:33:02,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:33:02,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:33:02,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:33:02" (1/1) ... [2022-12-14 08:33:02,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bbca1a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:33:02, skipping insertion in model container [2022-12-14 08:33:02,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:33:02" (1/1) ... [2022-12-14 08:33:02,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:33:02,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:33:02,258 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_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i[999,1012] [2022-12-14 08:33:02,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:33:02,429 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:33:02,442 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_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i[999,1012] [2022-12-14 08:33:02,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,481 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,482 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,482 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:33:02,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:33:02,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:33:02,515 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:33:02,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:33:02 WrapperNode [2022-12-14 08:33:02,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:33:02,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:33:02,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:33:02,516 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:33:02,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:33:02" (1/1) ... [2022-12-14 08:33:02,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:33:02" (1/1) ... [2022-12-14 08:33:02,560 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 121 [2022-12-14 08:33:02,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:33:02,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:33:02,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:33:02,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:33:02,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:33:02" (1/1) ... [2022-12-14 08:33:02,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:33:02" (1/1) ... [2022-12-14 08:33:02,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:33:02" (1/1) ... [2022-12-14 08:33:02,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:33:02" (1/1) ... [2022-12-14 08:33:02,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:33:02" (1/1) ... [2022-12-14 08:33:02,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:33:02" (1/1) ... [2022-12-14 08:33:02,584 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:33:02" (1/1) ... [2022-12-14 08:33:02,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:33:02" (1/1) ... [2022-12-14 08:33:02,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:33:02,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:33:02,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:33:02,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:33:02,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:33:02" (1/1) ... [2022-12-14 08:33:02,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:33:02,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:33:02,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:33:02,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:33:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:33:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 08:33:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:33:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:33:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:33:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-14 08:33:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-14 08:33:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-14 08:33:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-14 08:33:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:33:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 08:33:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:33:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:33:02,660 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 08:33:02,768 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:33:02,770 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:33:02,986 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:33:03,101 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:33:03,101 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:33:03,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:33:03 BoogieIcfgContainer [2022-12-14 08:33:03,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:33:03,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:33:03,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:33:03,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:33:03,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:33:02" (1/3) ... [2022-12-14 08:33:03,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de2c142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:33:03, skipping insertion in model container [2022-12-14 08:33:03,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:33:02" (2/3) ... [2022-12-14 08:33:03,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de2c142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:33:03, skipping insertion in model container [2022-12-14 08:33:03,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:33:03" (3/3) ... [2022-12-14 08:33:03,112 INFO L112 eAbstractionObserver]: Analyzing ICFG mix034_pso.opt_tso.opt.i [2022-12-14 08:33:03,118 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 08:33:03,126 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:33:03,126 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 08:33:03,126 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 08:33:03,164 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 08:33:03,191 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:33:03,203 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 98 transitions, 206 flow [2022-12-14 08:33:03,206 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 98 transitions, 206 flow [2022-12-14 08:33:03,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 98 transitions, 206 flow [2022-12-14 08:33:03,251 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2022-12-14 08:33:03,251 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 08:33:03,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 96 events. 2/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2022-12-14 08:33:03,257 INFO L119 LiptonReduction]: Number of co-enabled transitions 1196 [2022-12-14 08:33:05,884 INFO L134 LiptonReduction]: Checked pairs total: 2761 [2022-12-14 08:33:05,884 INFO L136 LiptonReduction]: Total number of compositions: 93 [2022-12-14 08:33:05,891 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 20 transitions, 50 flow [2022-12-14 08:33:05,913 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 130 states, 127 states have (on average 2.409448818897638) internal successors, (306), 129 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:05,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:33:05,930 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;@3c7e7cef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:33:05,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-14 08:33:05,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 127 states have (on average 2.409448818897638) internal successors, (306), 129 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:05,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 08:33:05,935 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:33:05,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 08:33:05,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 08:33:05,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:33:05,939 INFO L85 PathProgramCache]: Analyzing trace with hash 408495437, now seen corresponding path program 1 times [2022-12-14 08:33:05,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:33:05,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398001641] [2022-12-14 08:33:05,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:33:05,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:33:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:33:06,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:33:06,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:33:06,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398001641] [2022-12-14 08:33:06,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398001641] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:33:06,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:33:06,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:33:06,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627722507] [2022-12-14 08:33:06,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:33:06,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:33:06,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:33:06,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:33:06,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:33:06,251 INFO L87 Difference]: Start difference. First operand has 130 states, 127 states have (on average 2.409448818897638) internal successors, (306), 129 states have internal predecessors, (306), 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) [2022-12-14 08:33:06,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:33:06,304 INFO L93 Difference]: Finished difference Result 110 states and 247 transitions. [2022-12-14 08:33:06,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:33:06,306 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 [2022-12-14 08:33:06,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:33:06,313 INFO L225 Difference]: With dead ends: 110 [2022-12-14 08:33:06,313 INFO L226 Difference]: Without dead ends: 106 [2022-12-14 08:33:06,313 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 [2022-12-14 08:33:06,316 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:33:06,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:33:06,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-12-14 08:33:06,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-12-14 08:33:06,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 2.2857142857142856) internal successors, (240), 105 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:06,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 240 transitions. [2022-12-14 08:33:06,345 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 240 transitions. Word has length 5 [2022-12-14 08:33:06,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:33:06,345 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 240 transitions. [2022-12-14 08:33:06,345 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) [2022-12-14 08:33:06,345 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 240 transitions. [2022-12-14 08:33:06,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 08:33:06,346 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:33:06,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:33:06,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:33:06,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 08:33:06,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:33:06,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1722168690, now seen corresponding path program 1 times [2022-12-14 08:33:06,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:33:06,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613183184] [2022-12-14 08:33:06,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:33:06,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:33:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:33:06,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:33:06,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:33:06,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613183184] [2022-12-14 08:33:06,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613183184] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:33:06,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:33:06,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:33:06,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323504576] [2022-12-14 08:33:06,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:33:06,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:33:06,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:33:06,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:33:06,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:33:06,478 INFO L87 Difference]: Start difference. First operand 106 states and 240 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:06,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:33:06,518 INFO L93 Difference]: Finished difference Result 102 states and 228 transitions. [2022-12-14 08:33:06,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:33:06,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-12-14 08:33:06,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:33:06,520 INFO L225 Difference]: With dead ends: 102 [2022-12-14 08:33:06,520 INFO L226 Difference]: Without dead ends: 102 [2022-12-14 08:33:06,520 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 [2022-12-14 08:33:06,521 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:33:06,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:33:06,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-12-14 08:33:06,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-12-14 08:33:06,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 2.257425742574257) internal successors, (228), 101 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:06,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 228 transitions. [2022-12-14 08:33:06,531 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 228 transitions. Word has length 7 [2022-12-14 08:33:06,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:33:06,531 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 228 transitions. [2022-12-14 08:33:06,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:06,532 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 228 transitions. [2022-12-14 08:33:06,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 08:33:06,532 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:33:06,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:33:06,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:33:06,533 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 08:33:06,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:33:06,533 INFO L85 PathProgramCache]: Analyzing trace with hash 424903207, now seen corresponding path program 1 times [2022-12-14 08:33:06,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:33:06,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486030765] [2022-12-14 08:33:06,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:33:06,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:33:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:33:06,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:33:06,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:33:06,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486030765] [2022-12-14 08:33:06,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486030765] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:33:06,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:33:06,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:33:06,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367626545] [2022-12-14 08:33:06,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:33:06,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:33:06,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:33:06,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:33:06,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:33:06,708 INFO L87 Difference]: Start difference. First operand 102 states and 228 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:06,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:33:06,742 INFO L93 Difference]: Finished difference Result 98 states and 218 transitions. [2022-12-14 08:33:06,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:33:06,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-12-14 08:33:06,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:33:06,743 INFO L225 Difference]: With dead ends: 98 [2022-12-14 08:33:06,743 INFO L226 Difference]: Without dead ends: 98 [2022-12-14 08:33:06,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:33:06,744 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:33:06,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:33:06,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-14 08:33:06,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-12-14 08:33:06,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 2.247422680412371) internal successors, (218), 97 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:06,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 218 transitions. [2022-12-14 08:33:06,752 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 218 transitions. Word has length 9 [2022-12-14 08:33:06,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:33:06,752 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 218 transitions. [2022-12-14 08:33:06,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:06,752 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 218 transitions. [2022-12-14 08:33:06,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 08:33:06,753 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:33:06,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:33:06,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:33:06,753 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 08:33:06,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:33:06,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1378524857, now seen corresponding path program 1 times [2022-12-14 08:33:06,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:33:06,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849767443] [2022-12-14 08:33:06,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:33:06,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:33:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:33:06,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:33:06,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:33:06,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849767443] [2022-12-14 08:33:06,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849767443] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:33:06,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:33:06,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:33:06,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008592286] [2022-12-14 08:33:06,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:33:06,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:33:06,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:33:06,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:33:06,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:33:06,917 INFO L87 Difference]: Start difference. First operand 98 states and 218 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:06,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:33:06,986 INFO L93 Difference]: Finished difference Result 83 states and 154 transitions. [2022-12-14 08:33:06,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:33:06,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-12-14 08:33:06,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:33:06,987 INFO L225 Difference]: With dead ends: 83 [2022-12-14 08:33:06,987 INFO L226 Difference]: Without dead ends: 59 [2022-12-14 08:33:06,988 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 [2022-12-14 08:33:06,989 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:33:06,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 5 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:33:06,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-12-14 08:33:06,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-12-14 08:33:06,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.7413793103448276) internal successors, (101), 58 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:06,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 101 transitions. [2022-12-14 08:33:06,993 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 101 transitions. Word has length 9 [2022-12-14 08:33:06,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:33:06,994 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 101 transitions. [2022-12-14 08:33:06,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:06,994 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 101 transitions. [2022-12-14 08:33:06,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 08:33:06,994 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:33:06,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:33:06,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:33:06,995 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 08:33:06,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:33:06,995 INFO L85 PathProgramCache]: Analyzing trace with hash 642361529, now seen corresponding path program 1 times [2022-12-14 08:33:06,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:33:06,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675023919] [2022-12-14 08:33:06,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:33:06,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:33:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:33:07,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:33:07,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:33:07,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675023919] [2022-12-14 08:33:07,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675023919] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:33:07,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:33:07,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:33:07,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556695806] [2022-12-14 08:33:07,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:33:07,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:33:07,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:33:07,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:33:07,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:33:07,167 INFO L87 Difference]: Start difference. First operand 59 states and 101 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:07,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:33:07,236 INFO L93 Difference]: Finished difference Result 46 states and 73 transitions. [2022-12-14 08:33:07,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:33:07,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2022-12-14 08:33:07,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:33:07,237 INFO L225 Difference]: With dead ends: 46 [2022-12-14 08:33:07,237 INFO L226 Difference]: Without dead ends: 37 [2022-12-14 08:33:07,237 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 [2022-12-14 08:33:07,238 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:33:07,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 5 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:33:07,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-12-14 08:33:07,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-12-14 08:33:07,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 36 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:07,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2022-12-14 08:33:07,241 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 12 [2022-12-14 08:33:07,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:33:07,241 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2022-12-14 08:33:07,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:07,241 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2022-12-14 08:33:07,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 08:33:07,242 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:33:07,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:33:07,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:33:07,242 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 08:33:07,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:33:07,242 INFO L85 PathProgramCache]: Analyzing trace with hash 88489116, now seen corresponding path program 1 times [2022-12-14 08:33:07,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:33:07,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137244804] [2022-12-14 08:33:07,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:33:07,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:33:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:33:07,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:33:07,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:33:07,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137244804] [2022-12-14 08:33:07,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137244804] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:33:07,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:33:07,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:33:07,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155888045] [2022-12-14 08:33:07,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:33:07,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:33:07,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:33:07,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:33:07,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:33:07,359 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:07,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:33:07,405 INFO L93 Difference]: Finished difference Result 48 states and 71 transitions. [2022-12-14 08:33:07,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:33:07,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2022-12-14 08:33:07,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:33:07,406 INFO L225 Difference]: With dead ends: 48 [2022-12-14 08:33:07,406 INFO L226 Difference]: Without dead ends: 22 [2022-12-14 08:33:07,406 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 [2022-12-14 08:33:07,407 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:33:07,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:33:07,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-12-14 08:33:07,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-12-14 08:33:07,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:07,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-12-14 08:33:07,408 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 15 [2022-12-14 08:33:07,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:33:07,409 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-12-14 08:33:07,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:33:07,409 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-12-14 08:33:07,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 08:33:07,409 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:33:07,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:33:07,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 08:33:07,409 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 08:33:07,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:33:07,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1055906114, now seen corresponding path program 2 times [2022-12-14 08:33:07,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:33:07,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425990238] [2022-12-14 08:33:07,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:33:07,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:33:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:33:07,430 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:33:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:33:07,464 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:33:07,465 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:33:07,465 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-14 08:33:07,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-14 08:33:07,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-14 08:33:07,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-14 08:33:07,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-12-14 08:33:07,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 08:33:07,469 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-12-14 08:33:07,473 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 08:33:07,473 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:33:07,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:33:07 BasicIcfg [2022-12-14 08:33:07,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:33:07,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:33:07,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:33:07,500 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:33:07,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:33:03" (3/4) ... [2022-12-14 08:33:07,501 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 08:33:07,540 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 08:33:07,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:33:07,541 INFO L158 Benchmark]: Toolchain (without parser) took 5465.32ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 96.6MB in the beginning and 45.0MB in the end (delta: 51.6MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. [2022-12-14 08:33:07,541 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 134.2MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:33:07,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.49ms. Allocated memory is still 134.2MB. Free memory was 96.0MB in the beginning and 71.3MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-14 08:33:07,541 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.90ms. Allocated memory is still 134.2MB. Free memory was 71.3MB in the beginning and 68.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:33:07,542 INFO L158 Benchmark]: Boogie Preprocessor took 28.45ms. Allocated memory is still 134.2MB. Free memory was 68.7MB in the beginning and 67.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:33:07,542 INFO L158 Benchmark]: RCFGBuilder took 514.19ms. Allocated memory is still 134.2MB. Free memory was 67.2MB in the beginning and 94.9MB in the end (delta: -27.7MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2022-12-14 08:33:07,542 INFO L158 Benchmark]: TraceAbstraction took 4392.93ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 94.9MB in the beginning and 52.3MB in the end (delta: 42.6MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2022-12-14 08:33:07,542 INFO L158 Benchmark]: Witness Printer took 41.06ms. Allocated memory is still 161.5MB. Free memory was 52.3MB in the beginning and 45.0MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 08:33:07,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 134.2MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.49ms. Allocated memory is still 134.2MB. Free memory was 96.0MB in the beginning and 71.3MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.90ms. Allocated memory is still 134.2MB. Free memory was 71.3MB in the beginning and 68.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.45ms. Allocated memory is still 134.2MB. Free memory was 68.7MB in the beginning and 67.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 514.19ms. Allocated memory is still 134.2MB. Free memory was 67.2MB in the beginning and 94.9MB in the end (delta: -27.7MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4392.93ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 94.9MB in the beginning and 52.3MB in the end (delta: 42.6MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. * Witness Printer took 41.06ms. Allocated memory is still 161.5MB. Free memory was 52.3MB in the beginning and 45.0MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 103 PlacesBefore, 26 PlacesAfterwards, 98 TransitionsBefore, 20 TransitionsAfterwards, 1196 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 93 TotalNumberOfCompositions, 2761 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1536, independent: 1408, independent conditional: 0, independent unconditional: 1408, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 911, independent: 870, independent conditional: 0, independent unconditional: 870, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 911, independent: 858, independent conditional: 0, independent unconditional: 858, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 53, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 273, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 260, dependent conditional: 0, dependent unconditional: 260, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1536, independent: 538, independent conditional: 0, independent unconditional: 538, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 911, unknown conditional: 0, unknown unconditional: 911] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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; [L720] 0 _Bool x$flush_delayed; [L721] 0 int x$mem_tmp; [L722] 0 _Bool x$r_buff0_thd0; [L723] 0 _Bool x$r_buff0_thd1; [L724] 0 _Bool x$r_buff0_thd2; [L725] 0 _Bool x$r_buff1_thd0; [L726] 0 _Bool x$r_buff1_thd1; [L727] 0 _Bool x$r_buff1_thd2; [L728] 0 _Bool x$read_delayed; [L729] 0 int *x$read_delayed_var; [L730] 0 int x$w_buff0; [L731] 0 _Bool x$w_buff0_used; [L732] 0 int x$w_buff1; [L733] 0 _Bool x$w_buff1_used; [L735] 0 int y = 0; [L737] 0 int z = 0; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L813] 0 pthread_t t903; [L814] FCALL, FORK 0 pthread_create(&t903, ((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(&t903, ((void *)0), P0, ((void *)0))=-2, t903={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L815] 0 pthread_t t904; [L816] FCALL, FORK 0 pthread_create(&t904, ((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(&t904, ((void *)0), P1, ((void *)0))=-1, t903={5:0}, t904={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L771] 2 x$w_buff1 = x$w_buff0 [L772] 2 x$w_buff0 = 1 [L773] 2 x$w_buff1_used = x$w_buff0_used [L774] 2 x$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L776] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L777] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L778] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L779] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L782] 2 y = 1 [L785] 2 __unbuffered_p1_EAX = y 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$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L788] 2 __unbuffered_p1_EBX = z 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$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L743] 1 z = 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$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L746] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L747] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L748] 1 x$flush_delayed = weak$$choice2 [L749] 1 x$mem_tmp = x [L750] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L751] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L752] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L753] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L754] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L755] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L756] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L757] 1 __unbuffered_p0_EAX = x [L758] 1 x = x$flush_delayed ? x$mem_tmp : x [L759] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 1 return 0; [L791] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L792] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L793] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L794] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L795] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L798] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L800] 2 return 0; [L818] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L820] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L820] RET 0 assume_abort_if_not(main$tmp_guard0) [L822] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L823] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L824] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L825] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L826] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t903={5:0}, t904={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L829] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L831] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] - 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: 814]: 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: 816]: 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, 117 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 244 IncrementalHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 8 mSDtfsCounter, 244 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 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! [2022-12-14 08:33:07,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbb15c1-4aa3-48fc-b625-09c1ea7073af/bin/utaipan-gh47qXpMRh/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