./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/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_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60cd4209446f80c263553fdb6a481b4dd4e668058f5fe80fa8786bdb8310f6e8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 08:04:32,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:04:32,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:04:32,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:04:32,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:04:32,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:04:32,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:04:32,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:04:32,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:04:32,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:04:32,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:04:32,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:04:32,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:04:32,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:04:32,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:04:32,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:04:32,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:04:32,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:04:32,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:04:32,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:04:32,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:04:32,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:04:32,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:04:32,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:04:32,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:04:32,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:04:32,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:04:32,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:04:32,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:04:32,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:04:32,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:04:32,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:04:32,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:04:32,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:04:32,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:04:32,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:04:32,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:04:32,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:04:32,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:04:32,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:04:32,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:04:32,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 08:04:32,234 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:04:32,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:04:32,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:04:32,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:04:32,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:04:32,235 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:04:32,235 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:04:32,235 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:04:32,235 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:04:32,236 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:04:32,236 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:04:32,236 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:04:32,236 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:04:32,236 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:04:32,236 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:04:32,236 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:04:32,236 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:04:32,236 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:04:32,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 08:04:32,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 08:04:32,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:04:32,237 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:04:32,237 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:04:32,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:04:32,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:04:32,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:04:32,238 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 08:04:32,238 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 08:04:32,238 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 08:04:32,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:04:32,238 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 08:04:32,238 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:04:32,239 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:04:32,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:04:32,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:04:32,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:04:32,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:04:32,239 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:04:32,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:04:32,239 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:04:32,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:04:32,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:04:32,240 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_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60cd4209446f80c263553fdb6a481b4dd4e668058f5fe80fa8786bdb8310f6e8 [2022-12-14 08:04:32,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:04:32,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:04:32,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:04:32,441 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:04:32,442 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:04:32,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-14 08:04:34,999 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:04:35,172 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:04:35,172 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-14 08:04:35,183 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/data/c4245f27d/3d803e7d324a4efd84b60c02c6449440/FLAGbabc2bbeb [2022-12-14 08:04:35,194 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/data/c4245f27d/3d803e7d324a4efd84b60c02c6449440 [2022-12-14 08:04:35,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:04:35,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:04:35,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:04:35,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:04:35,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:04:35,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:04:35" (1/1) ... [2022-12-14 08:04:35,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e67801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:35, skipping insertion in model container [2022-12-14 08:04:35,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:04:35" (1/1) ... [2022-12-14 08:04:35,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:04:35,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:04:35,360 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_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[995,1008] [2022-12-14 08:04:35,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,479 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,481 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,481 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,482 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:04:35,492 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:04:35,501 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_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[995,1008] [2022-12-14 08:04:35,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,531 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:35,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:35,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:04:35,555 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:04:35,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:35 WrapperNode [2022-12-14 08:04:35,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:04:35,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:04:35,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:04:35,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:04:35,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:35" (1/1) ... [2022-12-14 08:04:35,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:35" (1/1) ... [2022-12-14 08:04:35,589 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 113 [2022-12-14 08:04:35,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:04:35,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:04:35,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:04:35,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:04:35,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:35" (1/1) ... [2022-12-14 08:04:35,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:35" (1/1) ... [2022-12-14 08:04:35,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:35" (1/1) ... [2022-12-14 08:04:35,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:35" (1/1) ... [2022-12-14 08:04:35,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:35" (1/1) ... [2022-12-14 08:04:35,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:35" (1/1) ... [2022-12-14 08:04:35,608 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:35" (1/1) ... [2022-12-14 08:04:35,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:35" (1/1) ... [2022-12-14 08:04:35,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:04:35,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:04:35,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:04:35,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:04:35,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:35" (1/1) ... [2022-12-14 08:04:35,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:04:35,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:04:35,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:04:35,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:04:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:04:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 08:04:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:04:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:04:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:04:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-14 08:04:35,673 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-14 08:04:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-14 08:04:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-14 08:04:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:04:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 08:04:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:04:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:04:35,675 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 08:04:35,776 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:04:35,778 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:04:36,020 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:04:36,136 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:04:36,136 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:04:36,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:04:36 BoogieIcfgContainer [2022-12-14 08:04:36,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:04:36,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:04:36,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:04:36,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:04:36,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:04:35" (1/3) ... [2022-12-14 08:04:36,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568cec97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:04:36, skipping insertion in model container [2022-12-14 08:04:36,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:35" (2/3) ... [2022-12-14 08:04:36,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568cec97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:04:36, skipping insertion in model container [2022-12-14 08:04:36,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:04:36" (3/3) ... [2022-12-14 08:04:36,148 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-14 08:04:36,163 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:04:36,164 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-12-14 08:04:36,164 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 08:04:36,225 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 08:04:36,257 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:04:36,273 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 104 transitions, 218 flow [2022-12-14 08:04:36,276 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 104 transitions, 218 flow [2022-12-14 08:04:36,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 104 transitions, 218 flow [2022-12-14 08:04:36,321 INFO L130 PetriNetUnfolder]: 2/102 cut-off events. [2022-12-14 08:04:36,321 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 08:04:36,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 102 events. 2/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2022-12-14 08:04:36,328 INFO L119 LiptonReduction]: Number of co-enabled transitions 1360 [2022-12-14 08:04:38,901 INFO L134 LiptonReduction]: Checked pairs total: 3379 [2022-12-14 08:04:38,901 INFO L136 LiptonReduction]: Total number of compositions: 103 [2022-12-14 08:04:38,907 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 27 transitions, 64 flow [2022-12-14 08:04:38,930 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:38,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:04:38,950 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@312635c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:04:38,950 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-14 08:04:38,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:38,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 08:04:38,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:38,955 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 08:04:38,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:38,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:38,959 INFO L85 PathProgramCache]: Analyzing trace with hash 460, now seen corresponding path program 1 times [2022-12-14 08:04:38,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:04:38,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473723129] [2022-12-14 08:04:38,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:38,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:04:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:04:39,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:04:39,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:04:39,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473723129] [2022-12-14 08:04:39,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473723129] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:39,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:04:39,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 08:04:39,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107056762] [2022-12-14 08:04:39,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:39,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:04:39,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:04:39,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:04:39,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:04:39,065 INFO L87 Difference]: Start difference. First operand has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:39,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:04:39,117 INFO L93 Difference]: Finished difference Result 242 states and 592 transitions. [2022-12-14 08:04:39,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:04:39,120 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-12-14 08:04:39,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:04:39,130 INFO L225 Difference]: With dead ends: 242 [2022-12-14 08:04:39,131 INFO L226 Difference]: Without dead ends: 242 [2022-12-14 08:04:39,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:04:39,135 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:04:39,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:04:39,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-12-14 08:04:39,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2022-12-14 08:04:39,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 2.49789029535865) internal successors, (592), 241 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:39,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 592 transitions. [2022-12-14 08:04:39,181 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 592 transitions. Word has length 1 [2022-12-14 08:04:39,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:04:39,181 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 592 transitions. [2022-12-14 08:04:39,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:39,182 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 592 transitions. [2022-12-14 08:04:39,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 08:04:39,182 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:39,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 08:04:39,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:04:39,182 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:39,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:39,183 INFO L85 PathProgramCache]: Analyzing trace with hash 453611, now seen corresponding path program 1 times [2022-12-14 08:04:39,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:04:39,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186925992] [2022-12-14 08:04:39,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:39,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:04:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:04:39,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:04:39,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:04:39,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186925992] [2022-12-14 08:04:39,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186925992] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:39,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:04:39,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:04:39,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234883571] [2022-12-14 08:04:39,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:39,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:04:39,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:04:39,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:04:39,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:04:39,352 INFO L87 Difference]: Start difference. First operand 242 states and 592 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:39,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:04:39,394 INFO L93 Difference]: Finished difference Result 198 states and 475 transitions. [2022-12-14 08:04:39,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:04:39,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 08:04:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:04:39,396 INFO L225 Difference]: With dead ends: 198 [2022-12-14 08:04:39,396 INFO L226 Difference]: Without dead ends: 192 [2022-12-14 08:04:39,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:04:39,398 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:04:39,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:04:39,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-12-14 08:04:39,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-12-14 08:04:39,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 190 states have (on average 2.442105263157895) internal successors, (464), 191 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:39,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 464 transitions. [2022-12-14 08:04:39,412 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 464 transitions. Word has length 3 [2022-12-14 08:04:39,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:04:39,412 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 464 transitions. [2022-12-14 08:04:39,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:39,412 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 464 transitions. [2022-12-14 08:04:39,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 08:04:39,413 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:39,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:04:39,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:04:39,414 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:39,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:39,414 INFO L85 PathProgramCache]: Analyzing trace with hash 177866399, now seen corresponding path program 1 times [2022-12-14 08:04:39,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:04:39,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459238250] [2022-12-14 08:04:39,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:39,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:04:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:04:39,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:04:39,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:04:39,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459238250] [2022-12-14 08:04:39,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459238250] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:39,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:04:39,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:04:39,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694193959] [2022-12-14 08:04:39,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:39,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:04:39,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:04:39,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:04:39,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:04:39,668 INFO L87 Difference]: Start difference. First operand 192 states and 464 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:39,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:04:39,719 INFO L93 Difference]: Finished difference Result 162 states and 385 transitions. [2022-12-14 08:04:39,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:04:39,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 08:04:39,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:04:39,721 INFO L225 Difference]: With dead ends: 162 [2022-12-14 08:04:39,721 INFO L226 Difference]: Without dead ends: 162 [2022-12-14 08:04:39,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:04:39,722 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:04:39,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:04:39,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-12-14 08:04:39,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2022-12-14 08:04:39,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 2.391304347826087) internal successors, (385), 161 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:39,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 385 transitions. [2022-12-14 08:04:39,732 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 385 transitions. Word has length 8 [2022-12-14 08:04:39,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:04:39,733 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 385 transitions. [2022-12-14 08:04:39,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:39,733 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 385 transitions. [2022-12-14 08:04:39,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 08:04:39,734 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:39,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:04:39,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:04:39,734 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:39,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:39,735 INFO L85 PathProgramCache]: Analyzing trace with hash 177866375, now seen corresponding path program 1 times [2022-12-14 08:04:39,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:04:39,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140972947] [2022-12-14 08:04:39,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:39,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:04:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:04:39,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:04:39,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:04:39,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140972947] [2022-12-14 08:04:39,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140972947] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:39,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:04:39,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:04:39,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100676671] [2022-12-14 08:04:39,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:39,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:04:39,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:04:39,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:04:39,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:04:39,861 INFO L87 Difference]: Start difference. First operand 162 states and 385 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:39,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:04:39,941 INFO L93 Difference]: Finished difference Result 188 states and 424 transitions. [2022-12-14 08:04:39,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:04:39,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 08:04:39,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:04:39,943 INFO L225 Difference]: With dead ends: 188 [2022-12-14 08:04:39,943 INFO L226 Difference]: Without dead ends: 158 [2022-12-14 08:04:39,943 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 08:04:39,944 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:04:39,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:04:39,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-12-14 08:04:39,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2022-12-14 08:04:39,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 2.375796178343949) internal successors, (373), 157 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:39,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 373 transitions. [2022-12-14 08:04:39,949 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 373 transitions. Word has length 8 [2022-12-14 08:04:39,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:04:39,949 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 373 transitions. [2022-12-14 08:04:39,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:39,949 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 373 transitions. [2022-12-14 08:04:39,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 08:04:39,950 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:39,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:04:39,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:04:39,950 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:39,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:39,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1221567898, now seen corresponding path program 1 times [2022-12-14 08:04:39,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:04:39,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830981401] [2022-12-14 08:04:39,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:39,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:04:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:04:40,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:04:40,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:04:40,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830981401] [2022-12-14 08:04:40,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830981401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:40,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:04:40,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:04:40,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939273466] [2022-12-14 08:04:40,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:40,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:04:40,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:04:40,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:04:40,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:04:40,047 INFO L87 Difference]: Start difference. First operand 158 states and 373 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:40,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:04:40,177 INFO L93 Difference]: Finished difference Result 242 states and 532 transitions. [2022-12-14 08:04:40,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 08:04:40,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 08:04:40,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:04:40,179 INFO L225 Difference]: With dead ends: 242 [2022-12-14 08:04:40,179 INFO L226 Difference]: Without dead ends: 175 [2022-12-14 08:04:40,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 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 08:04:40,180 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 34 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:04:40,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 8 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:04:40,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-12-14 08:04:40,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 151. [2022-12-14 08:04:40,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 2.2733333333333334) internal successors, (341), 150 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:40,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 341 transitions. [2022-12-14 08:04:40,185 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 341 transitions. Word has length 9 [2022-12-14 08:04:40,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:04:40,186 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 341 transitions. [2022-12-14 08:04:40,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:40,186 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 341 transitions. [2022-12-14 08:04:40,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 08:04:40,187 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:40,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:04:40,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:04:40,188 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:40,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:40,188 INFO L85 PathProgramCache]: Analyzing trace with hash -784853225, now seen corresponding path program 1 times [2022-12-14 08:04:40,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:04:40,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343802363] [2022-12-14 08:04:40,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:40,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:04:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:04:40,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:04:40,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:04:40,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343802363] [2022-12-14 08:04:40,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343802363] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:40,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:04:40,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:04:40,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924250488] [2022-12-14 08:04:40,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:40,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:04:40,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:04:40,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:04:40,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:04:40,258 INFO L87 Difference]: Start difference. First operand 151 states and 341 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 08:04:40,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:04:40,299 INFO L93 Difference]: Finished difference Result 83 states and 141 transitions. [2022-12-14 08:04:40,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:04:40,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 08:04:40,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:04:40,300 INFO L225 Difference]: With dead ends: 83 [2022-12-14 08:04:40,300 INFO L226 Difference]: Without dead ends: 83 [2022-12-14 08:04:40,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:04:40,300 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:04:40,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:04:40,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-12-14 08:04:40,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-12-14 08:04:40,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.7195121951219512) internal successors, (141), 82 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:40,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 141 transitions. [2022-12-14 08:04:40,303 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 141 transitions. Word has length 10 [2022-12-14 08:04:40,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:04:40,303 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 141 transitions. [2022-12-14 08:04:40,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 08:04:40,304 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 141 transitions. [2022-12-14 08:04:40,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 08:04:40,304 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:40,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:04:40,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 08:04:40,305 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:40,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:40,305 INFO L85 PathProgramCache]: Analyzing trace with hash -507940254, now seen corresponding path program 1 times [2022-12-14 08:04:40,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:04:40,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113272815] [2022-12-14 08:04:40,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:40,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:04:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:04:40,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:04:40,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:04:40,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113272815] [2022-12-14 08:04:40,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113272815] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:40,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:04:40,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:04:40,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165411690] [2022-12-14 08:04:40,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:40,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:04:40,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:04:40,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:04:40,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:04:40,422 INFO L87 Difference]: Start difference. First operand 83 states and 141 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:40,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:04:40,464 INFO L93 Difference]: Finished difference Result 49 states and 75 transitions. [2022-12-14 08:04:40,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:04:40,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 08:04:40,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:04:40,465 INFO L225 Difference]: With dead ends: 49 [2022-12-14 08:04:40,465 INFO L226 Difference]: Without dead ends: 43 [2022-12-14 08:04:40,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:04:40,466 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:04:40,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:04:40,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-14 08:04:40,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2022-12-14 08:04:40,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.564102564102564) internal successors, (61), 39 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:40,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 61 transitions. [2022-12-14 08:04:40,468 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 61 transitions. Word has length 13 [2022-12-14 08:04:40,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:04:40,469 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 61 transitions. [2022-12-14 08:04:40,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:40,469 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 61 transitions. [2022-12-14 08:04:40,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 08:04:40,470 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:40,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:04:40,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 08:04:40,470 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:40,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:40,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1695200060, now seen corresponding path program 1 times [2022-12-14 08:04:40,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:04:40,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913850137] [2022-12-14 08:04:40,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:40,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:04:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:04:40,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:04:40,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:04:40,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913850137] [2022-12-14 08:04:40,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913850137] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:40,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:04:40,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:04:40,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173745115] [2022-12-14 08:04:40,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:40,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:04:40,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:04:40,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:04:40,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:04:40,616 INFO L87 Difference]: Start difference. First operand 40 states and 61 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:40,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:04:40,675 INFO L93 Difference]: Finished difference Result 58 states and 86 transitions. [2022-12-14 08:04:40,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:04:40,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2022-12-14 08:04:40,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:04:40,675 INFO L225 Difference]: With dead ends: 58 [2022-12-14 08:04:40,675 INFO L226 Difference]: Without dead ends: 36 [2022-12-14 08:04:40,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:04:40,676 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:04:40,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:04:40,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-14 08:04:40,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-12-14 08:04:40,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 35 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:40,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 53 transitions. [2022-12-14 08:04:40,677 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 53 transitions. Word has length 17 [2022-12-14 08:04:40,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:04:40,678 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 53 transitions. [2022-12-14 08:04:40,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:40,678 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2022-12-14 08:04:40,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 08:04:40,678 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:40,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:04:40,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 08:04:40,678 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:40,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:40,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1455671260, now seen corresponding path program 2 times [2022-12-14 08:04:40,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:04:40,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234077525] [2022-12-14 08:04:40,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:40,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:04:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:04:40,711 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:04:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:04:40,750 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:04:40,750 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:04:40,751 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-12-14 08:04:40,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2022-12-14 08:04:40,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-12-14 08:04:40,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-12-14 08:04:40,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-12-14 08:04:40,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2022-12-14 08:04:40,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2022-12-14 08:04:40,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2022-12-14 08:04:40,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2022-12-14 08:04:40,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-12-14 08:04:40,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 08:04:40,755 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:04:40,759 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 08:04:40,759 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:04:40,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:04:40 BasicIcfg [2022-12-14 08:04:40,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:04:40,789 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:04:40,789 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:04:40,789 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:04:40,789 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:04:36" (3/4) ... [2022-12-14 08:04:40,791 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:04:40,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:04:40,791 INFO L158 Benchmark]: Toolchain (without parser) took 5594.20ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 127.7MB in the beginning and 144.7MB in the end (delta: -17.0MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2022-12-14 08:04:40,792 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 167.8MB. Free memory was 110.5MB in the beginning and 110.4MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:04:40,792 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.81ms. Allocated memory is still 167.8MB. Free memory was 127.7MB in the beginning and 102.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-14 08:04:40,792 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.16ms. Allocated memory is still 167.8MB. Free memory was 102.5MB in the beginning and 100.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:04:40,792 INFO L158 Benchmark]: Boogie Preprocessor took 21.14ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 98.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:04:40,792 INFO L158 Benchmark]: RCFGBuilder took 526.94ms. Allocated memory is still 167.8MB. Free memory was 98.3MB in the beginning and 66.5MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-12-14 08:04:40,792 INFO L158 Benchmark]: TraceAbstraction took 4646.74ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 65.6MB in the beginning and 144.7MB in the end (delta: -79.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:04:40,793 INFO L158 Benchmark]: Witness Printer took 2.56ms. Allocated memory is still 201.3MB. Free memory was 144.7MB in the beginning and 144.7MB in the end (delta: 112B). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:04:40,794 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 167.8MB. Free memory was 110.5MB in the beginning and 110.4MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.81ms. Allocated memory is still 167.8MB. Free memory was 127.7MB in the beginning and 102.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.16ms. Allocated memory is still 167.8MB. Free memory was 102.5MB in the beginning and 100.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.14ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 98.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 526.94ms. Allocated memory is still 167.8MB. Free memory was 98.3MB in the beginning and 66.5MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4646.74ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 65.6MB in the beginning and 144.7MB in the end (delta: -79.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.56ms. Allocated memory is still 201.3MB. Free memory was 144.7MB in the beginning and 144.7MB in the end (delta: 112B). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 109 PlacesBefore, 33 PlacesAfterwards, 104 TransitionsBefore, 27 TransitionsAfterwards, 1360 CoEnabledTransitionPairs, 6 FixpointIterations, 47 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 103 TotalNumberOfCompositions, 3379 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1905, independent: 1786, independent conditional: 0, independent unconditional: 1786, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 972, independent: 944, independent conditional: 0, independent unconditional: 944, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 972, independent: 929, independent conditional: 0, independent unconditional: 929, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 149, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1905, independent: 842, independent conditional: 0, independent unconditional: 842, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 972, unknown conditional: 0, unknown unconditional: 972] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 87, Positive conditional cache size: 0, Positive unconditional cache size: 87, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L717] 0 _Bool x$flush_delayed; [L718] 0 int x$mem_tmp; [L719] 0 _Bool x$r_buff0_thd0; [L720] 0 _Bool x$r_buff0_thd1; [L721] 0 _Bool x$r_buff0_thd2; [L722] 0 _Bool x$r_buff1_thd0; [L723] 0 _Bool x$r_buff1_thd1; [L724] 0 _Bool x$r_buff1_thd2; [L725] 0 _Bool x$read_delayed; [L726] 0 int *x$read_delayed_var; [L727] 0 int x$w_buff0; [L728] 0 _Bool x$w_buff0_used; [L729] 0 int x$w_buff1; [L730] 0 _Bool x$w_buff1_used; [L732] 0 int y = 0; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L810] 0 pthread_t t1705; [L811] FCALL, FORK 0 pthread_create(&t1705, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1705, ((void *)0), P0, ((void *)0))=-2, t1705={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L812] 0 pthread_t t1706; [L738] 1 x$w_buff1 = x$w_buff0 [L739] 1 x$w_buff0 = 1 [L740] 1 x$w_buff1_used = x$w_buff0_used [L741] 1 x$w_buff0_used = (_Bool)1 [L742] CALL 1 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L742] RET 1 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L743] 1 x$r_buff1_thd0 = x$r_buff0_thd0 [L744] 1 x$r_buff1_thd1 = x$r_buff0_thd1 [L745] 1 x$r_buff1_thd2 = x$r_buff0_thd2 [L746] 1 x$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L813] FCALL, FORK 0 pthread_create(&t1706, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1706, ((void *)0), P1, ((void *)0))=-1, t1705={5:0}, t1706={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L749] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L766] 2 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L769] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L772] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L773] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L774] 2 x$flush_delayed = weak$$choice2 [L775] 2 x$mem_tmp = x [L776] 2 x = !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L777] 2 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L778] 2 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L779] 2 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L780] 2 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L781] 2 x$r_buff0_thd2 = weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L782] 2 x$r_buff1_thd2 = weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] 2 __unbuffered_p1_EBX = x [L784] 2 x = x$flush_delayed ? x$mem_tmp : x [L785] 2 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=65, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L788] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L789] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L790] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L791] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L792] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=65, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L795] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 2 return 0; [L752] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L753] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L754] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L755] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L756] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=65, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L761] 1 return 0; [L815] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L817] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L817] RET 0 assume_abort_if_not(main$tmp_guard0) [L819] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L820] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L821] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L822] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L823] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1705={5:0}, t1706={3:0}, weak$$choice0=65, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L826] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p1_EAX == 2 && __unbuffered_p1_EBX == 0) [L828] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=65, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 813]: 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: 811]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 123 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 94 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 343 IncrementalHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 21 mSDtfsCounter, 343 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=0, InterpolantAutomatonStates: 32, 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, 27 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 264 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 could not prove your program: unable to determine feasibility of some traces [2022-12-14 08:04:40,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/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_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60cd4209446f80c263553fdb6a481b4dd4e668058f5fe80fa8786bdb8310f6e8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 08:04:42,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:04:42,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:04:42,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:04:42,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:04:42,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:04:42,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:04:42,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:04:42,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:04:42,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:04:42,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:04:42,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:04:42,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:04:42,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:04:42,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:04:42,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:04:42,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:04:42,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:04:42,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:04:42,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:04:42,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:04:42,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:04:42,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:04:42,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:04:42,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:04:42,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:04:42,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:04:42,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:04:42,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:04:42,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:04:42,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:04:42,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:04:42,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:04:42,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:04:42,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:04:42,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:04:42,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:04:42,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:04:42,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:04:42,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:04:42,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:04:42,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 08:04:42,461 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:04:42,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:04:42,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:04:42,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:04:42,462 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:04:42,462 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:04:42,462 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:04:42,463 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:04:42,463 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:04:42,463 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:04:42,463 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:04:42,463 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:04:42,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 08:04:42,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 08:04:42,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:04:42,465 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:04:42,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:04:42,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:04:42,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:04:42,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:04:42,466 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 08:04:42,466 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 08:04:42,466 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 08:04:42,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:04:42,467 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 08:04:42,467 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 08:04:42,467 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 08:04:42,467 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:04:42,467 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:04:42,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:04:42,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 08:04:42,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:04:42,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:04:42,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:04:42,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:04:42,473 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 08:04:42,473 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 08:04:42,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:04:42,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 08:04:42,474 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/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_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 60cd4209446f80c263553fdb6a481b4dd4e668058f5fe80fa8786bdb8310f6e8 [2022-12-14 08:04:42,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:04:42,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:04:42,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:04:42,733 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:04:42,733 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:04:42,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-14 08:04:45,335 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:04:45,540 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:04:45,541 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-14 08:04:45,553 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/data/0191e9d1c/d5ec840db86b44c3807966fc9f0d0ecb/FLAGea614549b [2022-12-14 08:04:45,903 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/data/0191e9d1c/d5ec840db86b44c3807966fc9f0d0ecb [2022-12-14 08:04:45,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:04:45,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:04:45,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:04:45,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:04:45,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:04:45,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:04:45" (1/1) ... [2022-12-14 08:04:45,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26eaf366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:45, skipping insertion in model container [2022-12-14 08:04:45,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:04:45" (1/1) ... [2022-12-14 08:04:45,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:04:45,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:04:46,069 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_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[995,1008] [2022-12-14 08:04:46,167 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,169 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,169 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,170 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,170 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,171 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,172 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,172 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,172 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,173 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,173 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,173 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,173 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,178 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,178 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,180 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,180 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,180 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,184 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,184 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,185 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,186 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,187 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:04:46,198 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:04:46,207 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_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/sv-benchmarks/c/pthread-wmm/rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[995,1008] [2022-12-14 08:04:46,222 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 08:04:46,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 08:04:46,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:04:46,259 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:04:46,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:46 WrapperNode [2022-12-14 08:04:46,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:04:46,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:04:46,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:04:46,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:04:46,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:46" (1/1) ... [2022-12-14 08:04:46,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:46" (1/1) ... [2022-12-14 08:04:46,310 INFO L138 Inliner]: procedures = 178, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 114 [2022-12-14 08:04:46,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:04:46,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:04:46,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:04:46,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:04:46,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:46" (1/1) ... [2022-12-14 08:04:46,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:46" (1/1) ... [2022-12-14 08:04:46,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:46" (1/1) ... [2022-12-14 08:04:46,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:46" (1/1) ... [2022-12-14 08:04:46,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:46" (1/1) ... [2022-12-14 08:04:46,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:46" (1/1) ... [2022-12-14 08:04:46,337 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:46" (1/1) ... [2022-12-14 08:04:46,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:46" (1/1) ... [2022-12-14 08:04:46,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:04:46,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:04:46,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:04:46,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:04:46,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:46" (1/1) ... [2022-12-14 08:04:46,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:04:46,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:04:46,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:04:46,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:04:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 08:04:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:04:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:04:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:04:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 08:04:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 08:04:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-14 08:04:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-14 08:04:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-14 08:04:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-14 08:04:46,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 08:04:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:04:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:04:46,413 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 08:04:46,523 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:04:46,525 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:04:46,796 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:04:46,889 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:04:46,889 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:04:46,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:04:46 BoogieIcfgContainer [2022-12-14 08:04:46,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:04:46,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:04:46,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:04:46,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:04:46,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:04:45" (1/3) ... [2022-12-14 08:04:46,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e8046f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:04:46, skipping insertion in model container [2022-12-14 08:04:46,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:04:46" (2/3) ... [2022-12-14 08:04:46,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e8046f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:04:46, skipping insertion in model container [2022-12-14 08:04:46,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:04:46" (3/3) ... [2022-12-14 08:04:46,898 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi007_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-12-14 08:04:46,912 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:04:46,912 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-12-14 08:04:46,912 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 08:04:46,955 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 08:04:46,980 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:04:46,991 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 105 transitions, 220 flow [2022-12-14 08:04:46,993 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 105 transitions, 220 flow [2022-12-14 08:04:46,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 105 transitions, 220 flow [2022-12-14 08:04:47,025 INFO L130 PetriNetUnfolder]: 2/103 cut-off events. [2022-12-14 08:04:47,026 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 08:04:47,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 103 events. 2/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2022-12-14 08:04:47,030 INFO L119 LiptonReduction]: Number of co-enabled transitions 1360 [2022-12-14 08:04:51,573 INFO L134 LiptonReduction]: Checked pairs total: 3579 [2022-12-14 08:04:51,573 INFO L136 LiptonReduction]: Total number of compositions: 106 [2022-12-14 08:04:51,580 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 27 transitions, 64 flow [2022-12-14 08:04:51,610 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:51,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:04:51,629 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@9dc46f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:04:51,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-14 08:04:51,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:51,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 08:04:51,635 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:51,636 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 08:04:51,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:51,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:51,641 INFO L85 PathProgramCache]: Analyzing trace with hash 468, now seen corresponding path program 1 times [2022-12-14 08:04:51,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:04:51,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795095345] [2022-12-14 08:04:51,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:51,653 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:04:51,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:04:51,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 08:04:51,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 08:04:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:04:51,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 08:04:51,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:04:51,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:04:51,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:04:51,733 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:04:51,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795095345] [2022-12-14 08:04:51,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795095345] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:51,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:04:51,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 08:04:51,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677536968] [2022-12-14 08:04:51,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:51,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:04:51,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:04:51,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:04:51,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:04:51,772 INFO L87 Difference]: Start difference. First operand has 256 states, 245 states have (on average 2.6612244897959183) internal successors, (652), 255 states have internal predecessors, (652), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:51,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:04:51,837 INFO L93 Difference]: Finished difference Result 242 states and 592 transitions. [2022-12-14 08:04:51,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:04:51,840 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-12-14 08:04:51,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:04:51,852 INFO L225 Difference]: With dead ends: 242 [2022-12-14 08:04:51,852 INFO L226 Difference]: Without dead ends: 242 [2022-12-14 08:04:51,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:04:51,856 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:04:51,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:04:51,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-12-14 08:04:51,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2022-12-14 08:04:51,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 2.49789029535865) internal successors, (592), 241 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:51,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 592 transitions. [2022-12-14 08:04:51,909 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 592 transitions. Word has length 1 [2022-12-14 08:04:51,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:04:51,909 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 592 transitions. [2022-12-14 08:04:51,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:51,910 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 592 transitions. [2022-12-14 08:04:51,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 08:04:51,910 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:51,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 08:04:51,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:04:52,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:04:52,112 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:52,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:52,114 INFO L85 PathProgramCache]: Analyzing trace with hash 459442, now seen corresponding path program 1 times [2022-12-14 08:04:52,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:04:52,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4951341] [2022-12-14 08:04:52,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:52,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:04:52,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:04:52,121 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 08:04:52,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 08:04:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:04:52,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 08:04:52,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:04:52,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:04:52,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:04:52,239 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:04:52,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4951341] [2022-12-14 08:04:52,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4951341] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:52,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:04:52,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:04:52,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618595202] [2022-12-14 08:04:52,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:52,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:04:52,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:04:52,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:04:52,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:04:52,242 INFO L87 Difference]: Start difference. First operand 242 states and 592 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:52,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:04:52,305 INFO L93 Difference]: Finished difference Result 198 states and 475 transitions. [2022-12-14 08:04:52,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:04:52,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 08:04:52,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:04:52,308 INFO L225 Difference]: With dead ends: 198 [2022-12-14 08:04:52,308 INFO L226 Difference]: Without dead ends: 192 [2022-12-14 08:04:52,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:04:52,309 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:04:52,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:04:52,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-12-14 08:04:52,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2022-12-14 08:04:52,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 190 states have (on average 2.442105263157895) internal successors, (464), 191 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:52,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 464 transitions. [2022-12-14 08:04:52,326 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 464 transitions. Word has length 3 [2022-12-14 08:04:52,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:04:52,327 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 464 transitions. [2022-12-14 08:04:52,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:52,327 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 464 transitions. [2022-12-14 08:04:52,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 08:04:52,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:52,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:04:52,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 08:04:52,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:04:52,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:52,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:52,532 INFO L85 PathProgramCache]: Analyzing trace with hash -501828009, now seen corresponding path program 1 times [2022-12-14 08:04:52,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:04:52,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877803286] [2022-12-14 08:04:52,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:52,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:04:52,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:04:52,539 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 08:04:52,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-14 08:04:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:04:52,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 08:04:52,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:04:52,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:04:52,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:04:52,680 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:04:52,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877803286] [2022-12-14 08:04:52,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877803286] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:52,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:04:52,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:04:52,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182852686] [2022-12-14 08:04:52,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:52,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:04:52,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:04:52,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:04:52,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:04:52,681 INFO L87 Difference]: Start difference. First operand 192 states and 464 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:52,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:04:52,739 INFO L93 Difference]: Finished difference Result 92 states and 164 transitions. [2022-12-14 08:04:52,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:04:52,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 08:04:52,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:04:52,740 INFO L225 Difference]: With dead ends: 92 [2022-12-14 08:04:52,740 INFO L226 Difference]: Without dead ends: 92 [2022-12-14 08:04:52,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:04:52,741 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:04:52,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:04:52,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-12-14 08:04:52,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-12-14 08:04:52,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 90 states have (on average 1.8222222222222222) internal successors, (164), 91 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:52,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 164 transitions. [2022-12-14 08:04:52,745 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 164 transitions. Word has length 8 [2022-12-14 08:04:52,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:04:52,745 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 164 transitions. [2022-12-14 08:04:52,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:52,745 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 164 transitions. [2022-12-14 08:04:52,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 08:04:52,746 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:52,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:04:52,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-14 08:04:52,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:04:52,948 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:52,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:52,949 INFO L85 PathProgramCache]: Analyzing trace with hash 301237327, now seen corresponding path program 1 times [2022-12-14 08:04:52,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:04:52,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116892074] [2022-12-14 08:04:52,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:52,950 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:04:52,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:04:52,953 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 08:04:52,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 08:04:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:04:53,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 08:04:53,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:04:53,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:04:53,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:04:53,104 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:04:53,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116892074] [2022-12-14 08:04:53,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116892074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:53,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:04:53,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:04:53,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472199787] [2022-12-14 08:04:53,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:53,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:04:53,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:04:53,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:04:53,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:04:53,106 INFO L87 Difference]: Start difference. First operand 92 states and 164 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 08:04:53,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:04:53,184 INFO L93 Difference]: Finished difference Result 47 states and 74 transitions. [2022-12-14 08:04:53,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:04:53,185 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 08:04:53,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:04:53,185 INFO L225 Difference]: With dead ends: 47 [2022-12-14 08:04:53,185 INFO L226 Difference]: Without dead ends: 47 [2022-12-14 08:04:53,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:04:53,186 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:04:53,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 8 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:04:53,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-12-14 08:04:53,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-12-14 08:04:53,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.6444444444444444) internal successors, (74), 46 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:53,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 74 transitions. [2022-12-14 08:04:53,188 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 74 transitions. Word has length 12 [2022-12-14 08:04:53,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:04:53,189 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 74 transitions. [2022-12-14 08:04:53,189 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 08:04:53,189 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 74 transitions. [2022-12-14 08:04:53,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 08:04:53,189 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:53,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:04:53,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-14 08:04:53,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:04:53,390 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:53,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:53,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1068118159, now seen corresponding path program 1 times [2022-12-14 08:04:53,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:04:53,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942471600] [2022-12-14 08:04:53,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:53,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:04:53,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:04:53,395 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 08:04:53,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 08:04:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:04:53,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 08:04:53,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:04:53,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:04:53,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:04:53,660 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:04:53,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942471600] [2022-12-14 08:04:53,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942471600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:53,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:04:53,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:04:53,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896675862] [2022-12-14 08:04:53,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:53,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:04:53,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:04:53,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:04:53,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:04:53,661 INFO L87 Difference]: Start difference. First operand 47 states and 74 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:53,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:04:53,741 INFO L93 Difference]: Finished difference Result 46 states and 73 transitions. [2022-12-14 08:04:53,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:04:53,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-12-14 08:04:53,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:04:53,742 INFO L225 Difference]: With dead ends: 46 [2022-12-14 08:04:53,742 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 08:04:53,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:04:53,743 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:04:53,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:04:53,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 08:04:53,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-14 08:04:53,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 45 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:53,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 73 transitions. [2022-12-14 08:04:53,746 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 73 transitions. Word has length 17 [2022-12-14 08:04:53,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:04:53,747 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 73 transitions. [2022-12-14 08:04:53,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:53,747 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 73 transitions. [2022-12-14 08:04:53,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 08:04:53,748 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:53,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:04:53,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 08:04:53,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:04:53,949 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:53,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:53,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1068118141, now seen corresponding path program 1 times [2022-12-14 08:04:53,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:04:53,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040454644] [2022-12-14 08:04:53,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:04:53,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:04:53,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:04:53,955 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 08:04:53,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-14 08:04:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:04:54,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 08:04:54,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:04:54,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:04:54,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:04:54,122 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:04:54,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040454644] [2022-12-14 08:04:54,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040454644] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:04:54,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:04:54,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:04:54,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734307773] [2022-12-14 08:04:54,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:04:54,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:04:54,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:04:54,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:04:54,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:04:54,123 INFO L87 Difference]: Start difference. First operand 46 states and 73 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:54,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:04:54,191 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2022-12-14 08:04:54,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:04:54,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2022-12-14 08:04:54,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:04:54,192 INFO L225 Difference]: With dead ends: 64 [2022-12-14 08:04:54,192 INFO L226 Difference]: Without dead ends: 36 [2022-12-14 08:04:54,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:04:54,192 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:04:54,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:04:54,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-14 08:04:54,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-12-14 08:04:54,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 35 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:54,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 53 transitions. [2022-12-14 08:04:54,194 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 53 transitions. Word has length 17 [2022-12-14 08:04:54,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:04:54,194 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 53 transitions. [2022-12-14 08:04:54,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:04:54,194 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2022-12-14 08:04:54,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 08:04:54,195 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:04:54,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:04:54,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-14 08:04:54,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:04:54,397 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-14 08:04:54,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:04:54,398 INFO L85 PathProgramCache]: Analyzing trace with hash -682916007, now seen corresponding path program 2 times [2022-12-14 08:04:54,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:04:54,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741267751] [2022-12-14 08:04:54,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 08:04:54,400 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:04:54,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:04:54,403 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 08:04:54,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-14 08:04:54,523 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 08:04:54,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-14 08:04:54,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:04:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:04:54,603 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 08:04:54,603 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:04:54,604 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-12-14 08:04:54,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2022-12-14 08:04:54,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-12-14 08:04:54,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-12-14 08:04:54,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-12-14 08:04:54,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2022-12-14 08:04:54,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2022-12-14 08:04:54,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2022-12-14 08:04:54,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2022-12-14 08:04:54,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-12-14 08:04:54,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-14 08:04:54,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 08:04:54,813 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-12-14 08:04:54,827 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 08:04:54,827 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:04:54,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:04:54 BasicIcfg [2022-12-14 08:04:54,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:04:54,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:04:54,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:04:54,876 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:04:54,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:04:46" (3/4) ... [2022-12-14 08:04:54,878 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:04:54,878 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:04:54,879 INFO L158 Benchmark]: Toolchain (without parser) took 8969.38ms. Allocated memory is still 75.5MB. Free memory was 38.2MB in the beginning and 37.9MB in the end (delta: 348.8kB). Peak memory consumption was 187.1kB. Max. memory is 16.1GB. [2022-12-14 08:04:54,879 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 58.7MB. Free memory was 37.2MB in the beginning and 37.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:04:54,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.93ms. Allocated memory is still 75.5MB. Free memory was 37.9MB in the beginning and 33.7MB in the end (delta: 4.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 08:04:54,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.92ms. Allocated memory is still 75.5MB. Free memory was 33.7MB in the beginning and 53.1MB in the end (delta: -19.4MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2022-12-14 08:04:54,880 INFO L158 Benchmark]: Boogie Preprocessor took 30.82ms. Allocated memory is still 75.5MB. Free memory was 52.8MB in the beginning and 51.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:04:54,880 INFO L158 Benchmark]: RCFGBuilder took 548.81ms. Allocated memory is still 75.5MB. Free memory was 51.0MB in the beginning and 33.6MB in the end (delta: 17.4MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2022-12-14 08:04:54,880 INFO L158 Benchmark]: TraceAbstraction took 7982.74ms. Allocated memory is still 75.5MB. Free memory was 33.3MB in the beginning and 37.9MB in the end (delta: -4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:04:54,880 INFO L158 Benchmark]: Witness Printer took 2.86ms. Allocated memory is still 75.5MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:04:54,882 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 58.7MB. Free memory was 37.2MB in the beginning and 37.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.93ms. Allocated memory is still 75.5MB. Free memory was 37.9MB in the beginning and 33.7MB in the end (delta: 4.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.92ms. Allocated memory is still 75.5MB. Free memory was 33.7MB in the beginning and 53.1MB in the end (delta: -19.4MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.82ms. Allocated memory is still 75.5MB. Free memory was 52.8MB in the beginning and 51.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 548.81ms. Allocated memory is still 75.5MB. Free memory was 51.0MB in the beginning and 33.6MB in the end (delta: 17.4MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7982.74ms. Allocated memory is still 75.5MB. Free memory was 33.3MB in the beginning and 37.9MB in the end (delta: -4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.86ms. Allocated memory is still 75.5MB. Free memory is still 37.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6s, 110 PlacesBefore, 33 PlacesAfterwards, 105 TransitionsBefore, 27 TransitionsAfterwards, 1360 CoEnabledTransitionPairs, 7 FixpointIterations, 50 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 106 TotalNumberOfCompositions, 3579 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1992, independent: 1855, independent conditional: 0, independent unconditional: 1855, dependent: 137, dependent conditional: 0, dependent unconditional: 137, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 981, independent: 953, independent conditional: 0, independent unconditional: 953, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 981, independent: 934, independent conditional: 0, independent unconditional: 934, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 47, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 150, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1992, independent: 902, independent conditional: 0, independent unconditional: 902, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 981, unknown conditional: 0, unknown unconditional: 981] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L717] 0 _Bool x$flush_delayed; [L718] 0 int x$mem_tmp; [L719] 0 _Bool x$r_buff0_thd0; [L720] 0 _Bool x$r_buff0_thd1; [L721] 0 _Bool x$r_buff0_thd2; [L722] 0 _Bool x$r_buff1_thd0; [L723] 0 _Bool x$r_buff1_thd1; [L724] 0 _Bool x$r_buff1_thd2; [L725] 0 _Bool x$read_delayed; [L726] 0 int *x$read_delayed_var; [L727] 0 int x$w_buff0; [L728] 0 _Bool x$w_buff0_used; [L729] 0 int x$w_buff1; [L730] 0 _Bool x$w_buff1_used; [L732] 0 int y = 0; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L810] 0 pthread_t t1705; [L811] FCALL, FORK 0 pthread_create(&t1705, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1705, ((void *)0), P0, ((void *)0))=-1, t1705={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L812] 0 pthread_t t1706; [L813] FCALL, FORK 0 pthread_create(&t1706, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1706, ((void *)0), P1, ((void *)0))=0, t1705={3:0}, t1706={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L738] 1 x$w_buff1 = x$w_buff0 [L739] 1 x$w_buff0 = 1 [L740] 1 x$w_buff1_used = x$w_buff0_used [L741] 1 x$w_buff0_used = (_Bool)1 [L742] CALL 1 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L742] RET 1 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L743] 1 x$r_buff1_thd0 = x$r_buff0_thd0 [L744] 1 x$r_buff1_thd1 = x$r_buff0_thd1 [L745] 1 x$r_buff1_thd2 = x$r_buff0_thd2 [L746] 1 x$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L749] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L766] 2 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L769] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L772] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L773] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L774] 2 x$flush_delayed = weak$$choice2 [L775] 2 x$mem_tmp = x [L776] 2 x = !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L777] 2 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L778] 2 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L779] 2 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L780] 2 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L781] 2 x$r_buff0_thd2 = weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L782] 2 x$r_buff1_thd2 = weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] 2 __unbuffered_p1_EBX = x [L784] 2 x = x$flush_delayed ? x$mem_tmp : x [L785] 2 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L788] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L789] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L790] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L791] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L792] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L795] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 2 return 0; [L752] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L753] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L754] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L755] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L756] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L761] 1 return 0; [L815] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L817] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L817] RET 0 assume_abort_if_not(main$tmp_guard0) [L819] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L820] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L821] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L822] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L823] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1705={3:0}, t1706={7:0}, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L826] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p1_EAX == 2 && __unbuffered_p1_EBX == 0) [L828] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 808]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 813]: 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: 811]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 124 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 233 IncrementalHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 15 mSDtfsCounter, 233 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 52 ConstructedInterpolants, 14 QuantifiedInterpolants, 436 SizeOfPredicates, 9 NumberOfNonLiveVariables, 535 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 08:04:54,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f7749e-fd5d-4546-bbdb-0ace23c6e6bc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample