./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix035_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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/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_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/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_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/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 08616d057728e0055484e74bd2f5263dad899fb9ef1c1289b69e87b2c2f7002b --- 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 11:24:15,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:24:15,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:24:15,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:24:15,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:24:15,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:24:15,282 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:24:15,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:24:15,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:24:15,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:24:15,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:24:15,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:24:15,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:24:15,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:24:15,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:24:15,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:24:15,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:24:15,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:24:15,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:24:15,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:24:15,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:24:15,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:24:15,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:24:15,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:24:15,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:24:15,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:24:15,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:24:15,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:24:15,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:24:15,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:24:15,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:24:15,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:24:15,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:24:15,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:24:15,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:24:15,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:24:15,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:24:15,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:24:15,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:24:15,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:24:15,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:24:15,314 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:24:15,334 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:24:15,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:24:15,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:24:15,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:24:15,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:24:15,336 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:24:15,336 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:24:15,336 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:24:15,337 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:24:15,337 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:24:15,337 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:24:15,337 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:24:15,337 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:24:15,338 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:24:15,338 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:24:15,338 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:24:15,338 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:24:15,338 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:24:15,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:24:15,339 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:24:15,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:24:15,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:24:15,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:24:15,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:24:15,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:24:15,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:24:15,341 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:24:15,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:24:15,341 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:24:15,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:24:15,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:24:15,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:24:15,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:24:15,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:24:15,342 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:24:15,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:24:15,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:24:15,343 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:24:15,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:24:15,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:24:15,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:24:15,343 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_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08616d057728e0055484e74bd2f5263dad899fb9ef1c1289b69e87b2c2f7002b [2022-12-14 11:24:15,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:24:15,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:24:15,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:24:15,529 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:24:15,529 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:24:15,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i [2022-12-14 11:24:17,996 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:24:18,210 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:24:18,210 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i [2022-12-14 11:24:18,223 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/bin/utaipan-gh47qXpMRh/data/2d663a27a/9599262a085c423f8e311d52c9bfe2b2/FLAGa83e8b0d6 [2022-12-14 11:24:18,569 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/bin/utaipan-gh47qXpMRh/data/2d663a27a/9599262a085c423f8e311d52c9bfe2b2 [2022-12-14 11:24:18,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:24:18,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:24:18,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:24:18,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:24:18,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:24:18,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:24:18" (1/1) ... [2022-12-14 11:24:18,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12a8011f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:18, skipping insertion in model container [2022-12-14 11:24:18,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:24:18" (1/1) ... [2022-12-14 11:24:18,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:24:18,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:24:18,730 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_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i[956,969] [2022-12-14 11:24:18,827 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,827 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,827 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,839 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,845 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:24:18,869 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:24:18,877 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_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/sv-benchmarks/c/pthread-wmm/mix035_pso.opt_tso.opt.i[956,969] [2022-12-14 11:24:18,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,910 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,914 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 11:24:18,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 11:24:18,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:24:18,955 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:24:18,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:18 WrapperNode [2022-12-14 11:24:18,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:24:18,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:24:18,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:24:18,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:24:18,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:18" (1/1) ... [2022-12-14 11:24:18,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:18" (1/1) ... [2022-12-14 11:24:18,997 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 137 [2022-12-14 11:24:18,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:24:18,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:24:18,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:24:18,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:24:19,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:18" (1/1) ... [2022-12-14 11:24:19,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:18" (1/1) ... [2022-12-14 11:24:19,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:18" (1/1) ... [2022-12-14 11:24:19,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:18" (1/1) ... [2022-12-14 11:24:19,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:18" (1/1) ... [2022-12-14 11:24:19,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:18" (1/1) ... [2022-12-14 11:24:19,021 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:18" (1/1) ... [2022-12-14 11:24:19,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:18" (1/1) ... [2022-12-14 11:24:19,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:24:19,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:24:19,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:24:19,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:24:19,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:18" (1/1) ... [2022-12-14 11:24:19,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:24:19,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:24:19,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:24:19,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:24:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:24:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 11:24:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:24:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:24:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:24:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-14 11:24:19,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-14 11:24:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-14 11:24:19,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-14 11:24:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-14 11:24:19,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-14 11:24:19,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:24:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 11:24:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:24:19,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:24:19,091 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 11:24:19,198 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:24:19,200 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:24:19,449 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:24:19,525 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:24:19,525 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:24:19,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:24:19 BoogieIcfgContainer [2022-12-14 11:24:19,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:24:19,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:24:19,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:24:19,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:24:19,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:24:18" (1/3) ... [2022-12-14 11:24:19,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155df872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:24:19, skipping insertion in model container [2022-12-14 11:24:19,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:18" (2/3) ... [2022-12-14 11:24:19,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155df872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:24:19, skipping insertion in model container [2022-12-14 11:24:19,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:24:19" (3/3) ... [2022-12-14 11:24:19,534 INFO L112 eAbstractionObserver]: Analyzing ICFG mix035_pso.opt_tso.opt.i [2022-12-14 11:24:19,540 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 11:24:19,548 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:24:19,548 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 11:24:19,549 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 11:24:19,590 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 11:24:19,622 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 11:24:19,633 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 118 transitions, 251 flow [2022-12-14 11:24:19,636 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 118 transitions, 251 flow [2022-12-14 11:24:19,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 118 transitions, 251 flow [2022-12-14 11:24:19,683 INFO L130 PetriNetUnfolder]: 2/115 cut-off events. [2022-12-14 11:24:19,683 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 11:24:19,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 115 events. 2/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2022-12-14 11:24:19,691 INFO L119 LiptonReduction]: Number of co-enabled transitions 2016 [2022-12-14 11:24:22,706 INFO L134 LiptonReduction]: Checked pairs total: 4491 [2022-12-14 11:24:22,706 INFO L136 LiptonReduction]: Total number of compositions: 103 [2022-12-14 11:24:22,713 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 27 transitions, 69 flow [2022-12-14 11:24:22,778 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 634 states, 631 states have (on average 3.283676703645008) internal successors, (2072), 633 states have internal predecessors, (2072), 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 11:24:22,795 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:24:22,801 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;@4bfb8fa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:24:22,802 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 11:24:22,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 634 states, 631 states have (on average 3.283676703645008) internal successors, (2072), 633 states have internal predecessors, (2072), 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 11:24:22,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 11:24:22,808 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:22,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:22,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-14 11:24:22,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:22,814 INFO L85 PathProgramCache]: Analyzing trace with hash -273455521, now seen corresponding path program 1 times [2022-12-14 11:24:22,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:22,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787305291] [2022-12-14 11:24:22,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:22,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:23,132 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 11:24:23,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:23,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787305291] [2022-12-14 11:24:23,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787305291] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:23,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:23,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 11:24:23,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272194926] [2022-12-14 11:24:23,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:23,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:24:23,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:23,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:24:23,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:24:23,157 INFO L87 Difference]: Start difference. First operand has 634 states, 631 states have (on average 3.283676703645008) internal successors, (2072), 633 states have internal predecessors, (2072), 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 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 11:24:23,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:23,231 INFO L93 Difference]: Finished difference Result 538 states and 1640 transitions. [2022-12-14 11:24:23,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:24:23,233 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 11:24:23,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:23,246 INFO L225 Difference]: With dead ends: 538 [2022-12-14 11:24:23,246 INFO L226 Difference]: Without dead ends: 522 [2022-12-14 11:24:23,246 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 11:24:23,248 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:23,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:24:23,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-12-14 11:24:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2022-12-14 11:24:23,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 521 states have (on average 3.071017274472169) internal successors, (1600), 521 states have internal predecessors, (1600), 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 11:24:23,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 1600 transitions. [2022-12-14 11:24:23,301 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 1600 transitions. Word has length 7 [2022-12-14 11:24:23,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:23,302 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 1600 transitions. [2022-12-14 11:24:23,302 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 11:24:23,302 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 1600 transitions. [2022-12-14 11:24:23,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 11:24:23,303 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:23,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:23,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:24:23,303 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-14 11:24:23,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:23,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1040716590, now seen corresponding path program 1 times [2022-12-14 11:24:23,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:23,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523806964] [2022-12-14 11:24:23,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:23,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:23,457 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 11:24:23,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:23,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523806964] [2022-12-14 11:24:23,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523806964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:23,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:23,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:24:23,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122389136] [2022-12-14 11:24:23,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:23,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:24:23,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:23,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:24:23,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:24:23,461 INFO L87 Difference]: Start difference. First operand 522 states and 1600 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:23,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:23,545 INFO L93 Difference]: Finished difference Result 554 states and 1632 transitions. [2022-12-14 11:24:23,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:24:23,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 11:24:23,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:23,550 INFO L225 Difference]: With dead ends: 554 [2022-12-14 11:24:23,551 INFO L226 Difference]: Without dead ends: 458 [2022-12-14 11:24:23,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:24:23,552 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:23,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 10 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:24:23,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-12-14 11:24:23,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2022-12-14 11:24:23,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 457 states have (on average 3.010940919037199) internal successors, (1376), 457 states have internal predecessors, (1376), 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 11:24:23,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 1376 transitions. [2022-12-14 11:24:23,566 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 1376 transitions. Word has length 10 [2022-12-14 11:24:23,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:23,566 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 1376 transitions. [2022-12-14 11:24:23,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:23,567 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 1376 transitions. [2022-12-14 11:24:23,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 11:24:23,568 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:23,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:23,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:24:23,568 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-14 11:24:23,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:23,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1335064629, now seen corresponding path program 1 times [2022-12-14 11:24:23,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:23,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845354344] [2022-12-14 11:24:23,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:23,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:23,728 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 11:24:23,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:23,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845354344] [2022-12-14 11:24:23,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845354344] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:23,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:23,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:24:23,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715346655] [2022-12-14 11:24:23,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:23,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:24:23,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:23,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:24:23,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:24:23,731 INFO L87 Difference]: Start difference. First operand 458 states and 1376 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 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 11:24:23,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:23,798 INFO L93 Difference]: Finished difference Result 410 states and 1069 transitions. [2022-12-14 11:24:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:24:23,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 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 11:24:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:23,800 INFO L225 Difference]: With dead ends: 410 [2022-12-14 11:24:23,800 INFO L226 Difference]: Without dead ends: 314 [2022-12-14 11:24:23,800 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 11:24:23,801 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 38 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:23,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 6 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:24:23,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-12-14 11:24:23,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2022-12-14 11:24:23,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 2.5559105431309903) internal successors, (800), 313 states have internal predecessors, (800), 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 11:24:23,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 800 transitions. [2022-12-14 11:24:23,813 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 800 transitions. Word has length 12 [2022-12-14 11:24:23,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:23,813 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 800 transitions. [2022-12-14 11:24:23,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 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 11:24:23,814 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 800 transitions. [2022-12-14 11:24:23,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 11:24:23,815 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:23,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:23,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:24:23,816 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-14 11:24:23,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:23,816 INFO L85 PathProgramCache]: Analyzing trace with hash -561412185, now seen corresponding path program 1 times [2022-12-14 11:24:23,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:23,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099682054] [2022-12-14 11:24:23,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:23,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:23,959 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 11:24:23,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:23,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099682054] [2022-12-14 11:24:23,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099682054] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:23,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:23,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:24:23,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193434544] [2022-12-14 11:24:23,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:23,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:24:23,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:23,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:24:23,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:24:23,961 INFO L87 Difference]: Start difference. First operand 314 states and 800 transitions. Second operand has 5 states, 5 states have (on average 3.0) 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 11:24:24,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:24,043 INFO L93 Difference]: Finished difference Result 233 states and 532 transitions. [2022-12-14 11:24:24,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:24:24,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) 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 11:24:24,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:24,045 INFO L225 Difference]: With dead ends: 233 [2022-12-14 11:24:24,045 INFO L226 Difference]: Without dead ends: 182 [2022-12-14 11:24:24,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 11:24:24,047 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 61 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:24,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 8 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:24:24,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-12-14 11:24:24,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2022-12-14 11:24:24,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.2320441988950277) internal successors, (404), 181 states have internal predecessors, (404), 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 11:24:24,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 404 transitions. [2022-12-14 11:24:24,053 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 404 transitions. Word has length 15 [2022-12-14 11:24:24,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:24,054 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 404 transitions. [2022-12-14 11:24:24,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) 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 11:24:24,054 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 404 transitions. [2022-12-14 11:24:24,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 11:24:24,055 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:24,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:24,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 11:24:24,055 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-14 11:24:24,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:24,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1530351791, now seen corresponding path program 1 times [2022-12-14 11:24:24,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:24,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105157914] [2022-12-14 11:24:24,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:24,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:24,259 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 11:24:24,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:24,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105157914] [2022-12-14 11:24:24,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105157914] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:24,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:24,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:24:24,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128782636] [2022-12-14 11:24:24,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:24,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:24:24,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:24,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:24:24,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:24:24,261 INFO L87 Difference]: Start difference. First operand 182 states and 404 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 11:24:24,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:24,400 INFO L93 Difference]: Finished difference Result 259 states and 553 transitions. [2022-12-14 11:24:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:24:24,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2022-12-14 11:24:24,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:24,402 INFO L225 Difference]: With dead ends: 259 [2022-12-14 11:24:24,402 INFO L226 Difference]: Without dead ends: 186 [2022-12-14 11:24:24,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-14 11:24:24,403 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 48 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:24,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 12 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:24:24,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-12-14 11:24:24,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 182. [2022-12-14 11:24:24,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.088397790055249) internal successors, (378), 181 states have internal predecessors, (378), 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 11:24:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 378 transitions. [2022-12-14 11:24:24,409 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 378 transitions. Word has length 18 [2022-12-14 11:24:24,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:24,410 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 378 transitions. [2022-12-14 11:24:24,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 11:24:24,410 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 378 transitions. [2022-12-14 11:24:24,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 11:24:24,411 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:24,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:24,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:24:24,411 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-14 11:24:24,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:24,412 INFO L85 PathProgramCache]: Analyzing trace with hash -773314479, now seen corresponding path program 2 times [2022-12-14 11:24:24,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:24,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739153704] [2022-12-14 11:24:24,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:24,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:24,578 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 11:24:24,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:24,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739153704] [2022-12-14 11:24:24,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739153704] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:24,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:24,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:24:24,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153803789] [2022-12-14 11:24:24,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:24,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:24:24,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:24,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:24:24,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:24:24,581 INFO L87 Difference]: Start difference. First operand 182 states and 378 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 11:24:24,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:24,659 INFO L93 Difference]: Finished difference Result 154 states and 321 transitions. [2022-12-14 11:24:24,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:24:24,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2022-12-14 11:24:24,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:24,660 INFO L225 Difference]: With dead ends: 154 [2022-12-14 11:24:24,660 INFO L226 Difference]: Without dead ends: 94 [2022-12-14 11:24:24,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-12-14 11:24:24,661 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 81 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:24,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 5 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:24:24,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-12-14 11:24:24,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-12-14 11:24:24,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 2.0) internal successors, (186), 93 states have internal predecessors, (186), 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 11:24:24,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 186 transitions. [2022-12-14 11:24:24,665 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 186 transitions. Word has length 18 [2022-12-14 11:24:24,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:24,665 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 186 transitions. [2022-12-14 11:24:24,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 11:24:24,666 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 186 transitions. [2022-12-14 11:24:24,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 11:24:24,666 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:24,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:24,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 11:24:24,667 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-14 11:24:24,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:24,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1796120476, now seen corresponding path program 1 times [2022-12-14 11:24:24,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:24,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690288120] [2022-12-14 11:24:24,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:24,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:24,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:24:24,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:24,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690288120] [2022-12-14 11:24:24,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690288120] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:24,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:24,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:24:24,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938176088] [2022-12-14 11:24:24,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:24,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:24:24,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:24,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:24:24,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:24:24,854 INFO L87 Difference]: Start difference. First operand 94 states and 186 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 11:24:24,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:24,938 INFO L93 Difference]: Finished difference Result 124 states and 240 transitions. [2022-12-14 11:24:24,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:24:24,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2022-12-14 11:24:24,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:24,939 INFO L225 Difference]: With dead ends: 124 [2022-12-14 11:24:24,939 INFO L226 Difference]: Without dead ends: 43 [2022-12-14 11:24:24,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 11:24:24,940 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:24,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 7 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:24:24,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-14 11:24:24,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-12-14 11:24:24,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.6428571428571428) internal successors, (69), 42 states have internal predecessors, (69), 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 11:24:24,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 69 transitions. [2022-12-14 11:24:24,942 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 69 transitions. Word has length 21 [2022-12-14 11:24:24,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:24,942 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 69 transitions. [2022-12-14 11:24:24,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 11:24:24,942 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 69 transitions. [2022-12-14 11:24:24,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 11:24:24,943 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:24,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:24,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 11:24:24,943 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-14 11:24:24,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:24,943 INFO L85 PathProgramCache]: Analyzing trace with hash 807251760, now seen corresponding path program 2 times [2022-12-14 11:24:24,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:24,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264159840] [2022-12-14 11:24:24,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:24,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:25,300 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 11:24:25,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:25,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264159840] [2022-12-14 11:24:25,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264159840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:25,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:25,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:24:25,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790086279] [2022-12-14 11:24:25,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:25,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 11:24:25,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:25,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 11:24:25,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 11:24:25,302 INFO L87 Difference]: Start difference. First operand 43 states and 69 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 11:24:25,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:25,403 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2022-12-14 11:24:25,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 11:24:25,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2022-12-14 11:24:25,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:25,404 INFO L225 Difference]: With dead ends: 54 [2022-12-14 11:24:25,404 INFO L226 Difference]: Without dead ends: 31 [2022-12-14 11:24:25,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 11:24:25,405 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:25,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:24:25,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-14 11:24:25,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-12-14 11:24:25,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 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 11:24:25,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2022-12-14 11:24:25,407 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 21 [2022-12-14 11:24:25,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:25,407 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2022-12-14 11:24:25,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 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 11:24:25,407 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2022-12-14 11:24:25,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 11:24:25,408 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:25,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:25,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 11:24:25,408 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-12-14 11:24:25,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:25,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1757879888, now seen corresponding path program 3 times [2022-12-14 11:24:25,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:25,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115884493] [2022-12-14 11:24:25,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:25,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:24:25,441 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:24:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:24:25,487 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 11:24:25,487 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:24:25,488 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-12-14 11:24:25,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-12-14 11:24:25,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-12-14 11:24:25,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2022-12-14 11:24:25,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2022-12-14 11:24:25,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-12-14 11:24:25,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 11:24:25,492 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2022-12-14 11:24:25,496 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 11:24:25,496 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:24:25,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:24:25 BasicIcfg [2022-12-14 11:24:25,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:24:25,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:24:25,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:24:25,550 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:24:25,550 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:24:19" (3/4) ... [2022-12-14 11:24:25,552 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 11:24:25,620 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 11:24:25,620 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:24:25,621 INFO L158 Benchmark]: Toolchain (without parser) took 7047.61ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 78.6MB in the beginning and 100.5MB in the end (delta: -22.0MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2022-12-14 11:24:25,621 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 115.3MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:24:25,621 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.54ms. Allocated memory is still 115.3MB. Free memory was 78.3MB in the beginning and 52.2MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-14 11:24:25,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.47ms. Allocated memory is still 115.3MB. Free memory was 52.2MB in the beginning and 49.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:24:25,622 INFO L158 Benchmark]: Boogie Preprocessor took 26.10ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 49.8MB in the beginning and 108.6MB in the end (delta: -58.9MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2022-12-14 11:24:25,622 INFO L158 Benchmark]: RCFGBuilder took 502.22ms. Allocated memory is still 138.4MB. Free memory was 108.6MB in the beginning and 81.8MB in the end (delta: 26.7MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-12-14 11:24:25,622 INFO L158 Benchmark]: TraceAbstraction took 6020.58ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 81.1MB in the beginning and 109.9MB in the end (delta: -28.9MB). Peak memory consumption was 179.7kB. Max. memory is 16.1GB. [2022-12-14 11:24:25,623 INFO L158 Benchmark]: Witness Printer took 70.47ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 100.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 11:24:25,625 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 115.3MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.54ms. Allocated memory is still 115.3MB. Free memory was 78.3MB in the beginning and 52.2MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.47ms. Allocated memory is still 115.3MB. Free memory was 52.2MB in the beginning and 49.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.10ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 49.8MB in the beginning and 108.6MB in the end (delta: -58.9MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * RCFGBuilder took 502.22ms. Allocated memory is still 138.4MB. Free memory was 108.6MB in the beginning and 81.8MB in the end (delta: 26.7MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6020.58ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 81.1MB in the beginning and 109.9MB in the end (delta: -28.9MB). Peak memory consumption was 179.7kB. Max. memory is 16.1GB. * Witness Printer took 70.47ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 100.5MB in the end (delta: 9.4MB). 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: 3.1s, 126 PlacesBefore, 36 PlacesAfterwards, 118 TransitionsBefore, 27 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 103 TotalNumberOfCompositions, 4491 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2425, independent: 2273, independent conditional: 0, independent unconditional: 2273, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1364, independent: 1324, independent conditional: 0, independent unconditional: 1324, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1364, independent: 1317, independent conditional: 0, independent unconditional: 1317, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 47, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 245, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 237, dependent conditional: 0, dependent unconditional: 237, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2425, independent: 949, independent conditional: 0, independent unconditional: 949, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 1364, unknown conditional: 0, unknown unconditional: 1364] , Statistics on independence cache: Total cache size (in pairs): 123, Positive cache size: 104, Positive conditional cache size: 0, Positive unconditional cache size: 104, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: 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_p2_EAX = 0; [L717] 0 int __unbuffered_p2_EBX = 0; [L719] 0 int a = 0; [L720] 0 _Bool main$tmp_guard0; [L721] 0 _Bool main$tmp_guard1; [L723] 0 int x = 0; [L725] 0 int y = 0; [L726] 0 _Bool y$flush_delayed; [L727] 0 int y$mem_tmp; [L728] 0 _Bool y$r_buff0_thd0; [L729] 0 _Bool y$r_buff0_thd1; [L730] 0 _Bool y$r_buff0_thd2; [L731] 0 _Bool y$r_buff0_thd3; [L732] 0 _Bool y$r_buff1_thd0; [L733] 0 _Bool y$r_buff1_thd1; [L734] 0 _Bool y$r_buff1_thd2; [L735] 0 _Bool y$r_buff1_thd3; [L736] 0 _Bool y$read_delayed; [L737] 0 int *y$read_delayed_var; [L738] 0 int y$w_buff0; [L739] 0 _Bool y$w_buff0_used; [L740] 0 int y$w_buff1; [L741] 0 _Bool y$w_buff1_used; [L743] 0 int z = 0; [L744] 0 _Bool weak$$choice0; [L745] 0 _Bool weak$$choice2; [L835] 0 pthread_t t922; [L836] FCALL, FORK 0 pthread_create(&t922, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t922, ((void *)0), P0, ((void *)0))=-3, t922={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L837] 0 pthread_t t923; [L838] FCALL, FORK 0 pthread_create(&t923, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t923, ((void *)0), P1, ((void *)0))=-2, t922={5:0}, t923={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L839] 0 pthread_t t924; [L840] FCALL, FORK 0 pthread_create(&t924, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t924, ((void *)0), P2, ((void *)0))=-1, t922={5:0}, t923={6:0}, t924={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L792] 3 y$w_buff1 = y$w_buff0 [L793] 3 y$w_buff0 = 1 [L794] 3 y$w_buff1_used = y$w_buff0_used [L795] 3 y$w_buff0_used = (_Bool)1 [L796] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L796] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L797] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L798] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L799] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L800] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L801] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L804] 3 z = 1 [L807] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L810] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L749] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L752] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L757] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L759] 1 return 0; [L764] 2 x = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L767] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L768] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L769] 2 y$flush_delayed = weak$$choice2 [L770] 2 y$mem_tmp = y [L771] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L772] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L773] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L774] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L775] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L776] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L777] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] 2 __unbuffered_p1_EAX = y [L779] 2 y = y$flush_delayed ? y$mem_tmp : y [L780] 2 y$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L813] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L814] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L815] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L816] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L817] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L820] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L822] 3 return 0; [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L787] 2 return 0; [L842] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t922={5:0}, t923={6:0}, t924={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L844] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L844] RET 0 assume_abort_if_not(main$tmp_guard0) [L846] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L847] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L848] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L849] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L850] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t922={5:0}, t923={6:0}, t924={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L853] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L855] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: 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: 836]: 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: 838]: 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: 840]: 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 7 procedures, 145 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 292 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 292 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 652 IncrementalHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 23 mSDtfsCounter, 652 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=634occurred in iteration=0, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 587 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 11:24:25,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d15ca737-ed07-4a3b-8c95-c1a0242b2f1c/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