./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur --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 0b278c8af08551c2e27294e2c5dca8c5bd0f6f00874366f88466c32210c557af --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:25:28,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:25:28,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:25:28,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:25:28,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:25:28,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:25:28,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:25:28,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:25:28,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:25:28,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:25:28,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:25:28,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:25:28,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:25:28,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:25:28,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:25:28,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:25:28,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:25:28,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:25:28,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:25:28,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:25:28,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:25:28,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:25:28,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:25:28,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:25:28,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:25:28,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:25:28,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:25:28,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:25:28,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:25:28,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:25:28,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:25:28,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:25:28,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:25:28,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:25:28,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:25:28,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:25:28,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:25:28,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:25:28,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:25:28,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:25:28,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:25:28,493 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-25 23:25:28,539 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:25:28,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:25:28,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:25:28,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:25:28,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:25:28,541 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:25:28,541 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:25:28,541 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:25:28,541 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:25:28,542 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:25:28,542 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:25:28,542 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:25:28,542 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:25:28,543 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:25:28,543 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:25:28,543 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:25:28,543 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:25:28,543 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:25:28,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 23:25:28,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 23:25:28,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:25:28,545 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:25:28,545 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:25:28,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:25:28,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:25:28,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:25:28,546 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 23:25:28,546 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 23:25:28,546 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 23:25:28,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:25:28,547 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:25:28,547 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:25:28,547 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:25:28,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:25:28,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:25:28,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:25:28,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:25:28,548 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:25:28,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:25:28,549 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:25:28,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:25:28,549 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:25:28,549 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_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b278c8af08551c2e27294e2c5dca8c5bd0f6f00874366f88466c32210c557af [2022-11-25 23:25:28,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:25:28,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:25:28,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:25:28,949 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:25:28,950 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:25:28,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i [2022-11-25 23:25:32,464 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:25:32,837 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:25:32,838 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i [2022-11-25 23:25:32,853 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/data/d48f4350f/e0afe3c210dc4411b644001084736657/FLAGbcf8fae7b [2022-11-25 23:25:32,870 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/data/d48f4350f/e0afe3c210dc4411b644001084736657 [2022-11-25 23:25:32,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:25:32,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:25:32,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:25:32,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:25:32,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:25:32,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:25:32" (1/1) ... [2022-11-25 23:25:32,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a237b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:32, skipping insertion in model container [2022-11-25 23:25:32,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:25:32" (1/1) ... [2022-11-25 23:25:32,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:25:32,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:25:33,144 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_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i[966,979] [2022-11-25 23:25:33,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,357 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,357 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,358 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:25:33,474 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:25:33,494 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_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i[966,979] [2022-11-25 23:25:33,530 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:25:33,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:25:33,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:25:33,651 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:25:33,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:33 WrapperNode [2022-11-25 23:25:33,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:25:33,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:25:33,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:25:33,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:25:33,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:33" (1/1) ... [2022-11-25 23:25:33,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:33" (1/1) ... [2022-11-25 23:25:33,797 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 159 [2022-11-25 23:25:33,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:25:33,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:25:33,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:25:33,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:25:33,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:33" (1/1) ... [2022-11-25 23:25:33,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:33" (1/1) ... [2022-11-25 23:25:33,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:33" (1/1) ... [2022-11-25 23:25:33,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:33" (1/1) ... [2022-11-25 23:25:33,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:33" (1/1) ... [2022-11-25 23:25:33,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:33" (1/1) ... [2022-11-25 23:25:33,853 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:33" (1/1) ... [2022-11-25 23:25:33,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:33" (1/1) ... [2022-11-25 23:25:33,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:25:33,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:25:33,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:25:33,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:25:33,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:33" (1/1) ... [2022-11-25 23:25:33,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:25:33,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:25:33,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:25:33,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:25:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:25:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 23:25:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:25:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:25:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:25:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 23:25:33,974 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 23:25:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 23:25:33,974 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 23:25:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 23:25:33,975 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 23:25:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-25 23:25:33,975 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-25 23:25:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:25:33,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 23:25:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:25:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:25:33,978 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 23:25:34,213 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:25:34,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:25:34,690 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:25:34,890 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:25:34,890 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:25:34,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:25:34 BoogieIcfgContainer [2022-11-25 23:25:34,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:25:34,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:25:34,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:25:34,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:25:34,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:25:32" (1/3) ... [2022-11-25 23:25:34,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a934e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:25:34, skipping insertion in model container [2022-11-25 23:25:34,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:33" (2/3) ... [2022-11-25 23:25:34,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a934e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:25:34, skipping insertion in model container [2022-11-25 23:25:34,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:25:34" (3/3) ... [2022-11-25 23:25:34,908 INFO L112 eAbstractionObserver]: Analyzing ICFG mix029_power.opt_pso.opt_rmo.opt.i [2022-11-25 23:25:34,927 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:25:34,928 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-25 23:25:34,935 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 23:25:35,024 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 23:25:35,078 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 23:25:35,096 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 148 transitions, 316 flow [2022-11-25 23:25:35,104 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 148 transitions, 316 flow [2022-11-25 23:25:35,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 148 transitions, 316 flow [2022-11-25 23:25:35,233 INFO L130 PetriNetUnfolder]: 2/144 cut-off events. [2022-11-25 23:25:35,233 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 23:25:35,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 144 events. 2/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 104 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-11-25 23:25:35,245 INFO L119 LiptonReduction]: Number of co-enabled transitions 3552 [2022-11-25 23:25:42,851 INFO L134 LiptonReduction]: Checked pairs total: 10130 [2022-11-25 23:25:42,851 INFO L136 LiptonReduction]: Total number of compositions: 141 [2022-11-25 23:25:42,860 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 44 transitions, 108 flow [2022-11-25 23:25:43,164 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5140 states, 5125 states have (on average 4.099121951219512) internal successors, (21008), 5139 states have internal predecessors, (21008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:43,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:25:43,195 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;@5aaf7df1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:25:43,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-25 23:25:43,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 5140 states, 5125 states have (on average 4.099121951219512) internal successors, (21008), 5139 states have internal predecessors, (21008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:43,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-25 23:25:43,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:43,221 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-25 23:25:43,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:25:43,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:43,230 INFO L85 PathProgramCache]: Analyzing trace with hash 611, now seen corresponding path program 1 times [2022-11-25 23:25:43,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:43,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9259716] [2022-11-25 23:25:43,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:43,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:43,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:43,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:43,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9259716] [2022-11-25 23:25:43,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9259716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:43,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:43,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 23:25:43,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204244049] [2022-11-25 23:25:43,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:43,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:25:43,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:43,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:25:43,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:25:43,465 INFO L87 Difference]: Start difference. First operand has 5140 states, 5125 states have (on average 4.099121951219512) internal successors, (21008), 5139 states have internal predecessors, (21008), 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) [2022-11-25 23:25:43,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:43,629 INFO L93 Difference]: Finished difference Result 4850 states and 19358 transitions. [2022-11-25 23:25:43,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:25:43,632 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 [2022-11-25 23:25:43,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:43,779 INFO L225 Difference]: With dead ends: 4850 [2022-11-25 23:25:43,779 INFO L226 Difference]: Without dead ends: 4850 [2022-11-25 23:25:43,780 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 [2022-11-25 23:25:43,785 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:43,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:25:43,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4850 states. [2022-11-25 23:25:44,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4850 to 4850. [2022-11-25 23:25:44,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4850 states, 4845 states have (on average 3.995459236326109) internal successors, (19358), 4849 states have internal predecessors, (19358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:44,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4850 states to 4850 states and 19358 transitions. [2022-11-25 23:25:44,165 INFO L78 Accepts]: Start accepts. Automaton has 4850 states and 19358 transitions. Word has length 1 [2022-11-25 23:25:44,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:44,167 INFO L495 AbstractCegarLoop]: Abstraction has 4850 states and 19358 transitions. [2022-11-25 23:25:44,171 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) [2022-11-25 23:25:44,255 INFO L276 IsEmpty]: Start isEmpty. Operand 4850 states and 19358 transitions. [2022-11-25 23:25:44,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 23:25:44,255 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:44,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:44,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:25:44,256 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:25:44,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:44,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1303940140, now seen corresponding path program 1 times [2022-11-25 23:25:44,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:44,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515920767] [2022-11-25 23:25:44,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:44,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:44,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:44,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:44,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515920767] [2022-11-25 23:25:44,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515920767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:44,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:44,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:25:44,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708512556] [2022-11-25 23:25:44,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:44,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:25:44,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:44,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:25:44,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:25:44,663 INFO L87 Difference]: Start difference. First operand 4850 states and 19358 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:44,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:44,813 INFO L93 Difference]: Finished difference Result 3970 states and 15654 transitions. [2022-11-25 23:25:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:25:44,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 23:25:44,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:44,855 INFO L225 Difference]: With dead ends: 3970 [2022-11-25 23:25:44,855 INFO L226 Difference]: Without dead ends: 3850 [2022-11-25 23:25:44,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:25:44,857 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 15 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:44,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 10 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:25:44,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2022-11-25 23:25:45,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 3850. [2022-11-25 23:25:45,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 3848 states have (on average 3.9625779625779627) internal successors, (15248), 3849 states have internal predecessors, (15248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:45,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 15248 transitions. [2022-11-25 23:25:45,075 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 15248 transitions. Word has length 7 [2022-11-25 23:25:45,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:45,076 INFO L495 AbstractCegarLoop]: Abstraction has 3850 states and 15248 transitions. [2022-11-25 23:25:45,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:45,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 15248 transitions. [2022-11-25 23:25:45,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:25:45,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:45,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:45,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:25:45,079 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:25:45,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:45,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1652670574, now seen corresponding path program 1 times [2022-11-25 23:25:45,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:45,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909441323] [2022-11-25 23:25:45,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:45,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:46,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:46,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:46,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909441323] [2022-11-25 23:25:46,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909441323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:46,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:46,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:25:46,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115925749] [2022-11-25 23:25:46,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:46,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:25:46,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:46,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:25:46,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:25:46,801 INFO L87 Difference]: Start difference. First operand 3850 states and 15248 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:47,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:47,065 INFO L93 Difference]: Finished difference Result 5394 states and 21055 transitions. [2022-11-25 23:25:47,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:25:47,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 23:25:47,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:47,107 INFO L225 Difference]: With dead ends: 5394 [2022-11-25 23:25:47,107 INFO L226 Difference]: Without dead ends: 5394 [2022-11-25 23:25:47,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:25:47,109 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 31 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:47,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 7 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:25:47,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5394 states. [2022-11-25 23:25:47,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5394 to 3930. [2022-11-25 23:25:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3930 states, 3928 states have (on average 3.9694501018329937) internal successors, (15592), 3929 states have internal predecessors, (15592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3930 states to 3930 states and 15592 transitions. [2022-11-25 23:25:47,331 INFO L78 Accepts]: Start accepts. Automaton has 3930 states and 15592 transitions. Word has length 11 [2022-11-25 23:25:47,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:47,332 INFO L495 AbstractCegarLoop]: Abstraction has 3930 states and 15592 transitions. [2022-11-25 23:25:47,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:47,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3930 states and 15592 transitions. [2022-11-25 23:25:47,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 23:25:47,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:47,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:47,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:25:47,336 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:25:47,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:47,336 INFO L85 PathProgramCache]: Analyzing trace with hash 304970304, now seen corresponding path program 1 times [2022-11-25 23:25:47,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:47,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222765254] [2022-11-25 23:25:47,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:47,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:48,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:48,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:48,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222765254] [2022-11-25 23:25:48,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222765254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:48,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:48,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:25:48,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120492673] [2022-11-25 23:25:48,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:48,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:25:48,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:48,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:25:48,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:25:48,846 INFO L87 Difference]: Start difference. First operand 3930 states and 15592 transitions. Second operand has 4 states, 3 states have (on average 4.0) 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) [2022-11-25 23:25:49,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:49,103 INFO L93 Difference]: Finished difference Result 4810 states and 18736 transitions. [2022-11-25 23:25:49,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:25:49,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) 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 [2022-11-25 23:25:49,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:49,135 INFO L225 Difference]: With dead ends: 4810 [2022-11-25 23:25:49,136 INFO L226 Difference]: Without dead ends: 4810 [2022-11-25 23:25:49,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:25:49,139 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 22 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:49,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 14 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:25:49,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2022-11-25 23:25:49,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 3730. [2022-11-25 23:25:49,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3730 states, 3728 states have (on average 3.9490343347639487) internal successors, (14722), 3729 states have internal predecessors, (14722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:49,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 14722 transitions. [2022-11-25 23:25:49,378 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 14722 transitions. Word has length 12 [2022-11-25 23:25:49,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:49,379 INFO L495 AbstractCegarLoop]: Abstraction has 3730 states and 14722 transitions. [2022-11-25 23:25:49,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) 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) [2022-11-25 23:25:49,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 14722 transitions. [2022-11-25 23:25:49,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 23:25:49,380 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:49,380 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:49,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:25:49,381 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:25:49,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:49,381 INFO L85 PathProgramCache]: Analyzing trace with hash 306820720, now seen corresponding path program 1 times [2022-11-25 23:25:49,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:49,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344596720] [2022-11-25 23:25:49,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:49,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:50,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:50,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:50,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344596720] [2022-11-25 23:25:50,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344596720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:50,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:50,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:25:50,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373756619] [2022-11-25 23:25:50,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:50,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:25:50,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:50,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:25:50,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:25:50,199 INFO L87 Difference]: Start difference. First operand 3730 states and 14722 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 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) [2022-11-25 23:25:50,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:50,664 INFO L93 Difference]: Finished difference Result 3130 states and 12212 transitions. [2022-11-25 23:25:50,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:25:50,664 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 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 [2022-11-25 23:25:50,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:50,680 INFO L225 Difference]: With dead ends: 3130 [2022-11-25 23:25:50,680 INFO L226 Difference]: Without dead ends: 2530 [2022-11-25 23:25:50,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:25:50,681 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 54 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:50,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 80 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:25:50,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2022-11-25 23:25:50,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2530. [2022-11-25 23:25:50,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2529 states have (on average 3.804665875840253) internal successors, (9622), 2529 states have internal predecessors, (9622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:50,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 9622 transitions. [2022-11-25 23:25:50,812 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 9622 transitions. Word has length 12 [2022-11-25 23:25:50,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:50,813 INFO L495 AbstractCegarLoop]: Abstraction has 2530 states and 9622 transitions. [2022-11-25 23:25:50,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 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) [2022-11-25 23:25:50,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 9622 transitions. [2022-11-25 23:25:50,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:25:50,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:50,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:50,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:25:50,817 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:25:50,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:50,818 INFO L85 PathProgramCache]: Analyzing trace with hash 860299381, now seen corresponding path program 1 times [2022-11-25 23:25:50,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:50,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816992339] [2022-11-25 23:25:50,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:50,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:51,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:51,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:51,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816992339] [2022-11-25 23:25:51,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816992339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:51,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:51,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:25:51,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863176765] [2022-11-25 23:25:51,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:51,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:25:51,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:51,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:25:51,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:25:51,543 INFO L87 Difference]: Start difference. First operand 2530 states and 9622 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) 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) [2022-11-25 23:25:51,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:51,643 INFO L93 Difference]: Finished difference Result 2450 states and 9278 transitions. [2022-11-25 23:25:51,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:25:51,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) 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 [2022-11-25 23:25:51,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:51,658 INFO L225 Difference]: With dead ends: 2450 [2022-11-25 23:25:51,658 INFO L226 Difference]: Without dead ends: 2450 [2022-11-25 23:25:51,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:25:51,662 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 14 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:51,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 9 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:25:51,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2022-11-25 23:25:51,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2450. [2022-11-25 23:25:51,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2449 states have (on average 3.7884850959575336) internal successors, (9278), 2449 states have internal predecessors, (9278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:51,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 9278 transitions. [2022-11-25 23:25:51,776 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 9278 transitions. Word has length 13 [2022-11-25 23:25:51,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:51,777 INFO L495 AbstractCegarLoop]: Abstraction has 2450 states and 9278 transitions. [2022-11-25 23:25:51,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) 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) [2022-11-25 23:25:51,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 9278 transitions. [2022-11-25 23:25:51,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 23:25:51,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:51,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:51,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:25:51,781 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:25:51,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:51,781 INFO L85 PathProgramCache]: Analyzing trace with hash 129710129, now seen corresponding path program 1 times [2022-11-25 23:25:51,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:51,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117455277] [2022-11-25 23:25:51,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:51,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:52,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:52,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:52,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117455277] [2022-11-25 23:25:52,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117455277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:52,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:52,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:25:52,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380417786] [2022-11-25 23:25:52,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:52,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:25:52,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:52,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:25:52,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:25:52,291 INFO L87 Difference]: Start difference. First operand 2450 states and 9278 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:52,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:52,418 INFO L93 Difference]: Finished difference Result 2922 states and 10972 transitions. [2022-11-25 23:25:52,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:25:52,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-11-25 23:25:52,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:52,432 INFO L225 Difference]: With dead ends: 2922 [2022-11-25 23:25:52,432 INFO L226 Difference]: Without dead ends: 2922 [2022-11-25 23:25:52,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:25:52,433 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 32 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:52,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 13 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:25:52,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2022-11-25 23:25:52,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2818. [2022-11-25 23:25:52,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2817 states have (on average 3.777067802626908) internal successors, (10640), 2817 states have internal predecessors, (10640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:52,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 10640 transitions. [2022-11-25 23:25:52,524 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 10640 transitions. Word has length 14 [2022-11-25 23:25:52,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:52,525 INFO L495 AbstractCegarLoop]: Abstraction has 2818 states and 10640 transitions. [2022-11-25 23:25:52,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:52,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 10640 transitions. [2022-11-25 23:25:52,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 23:25:52,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:52,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:52,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:25:52,530 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:25:52,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:52,531 INFO L85 PathProgramCache]: Analyzing trace with hash 751100304, now seen corresponding path program 1 times [2022-11-25 23:25:52,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:52,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439474824] [2022-11-25 23:25:52,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:52,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:52,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:52,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:52,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439474824] [2022-11-25 23:25:52,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439474824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:52,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:52,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:25:52,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073054290] [2022-11-25 23:25:52,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:52,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:25:52,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:52,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:25:52,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:25:52,813 INFO L87 Difference]: Start difference. First operand 2818 states and 10640 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:52,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:52,964 INFO L93 Difference]: Finished difference Result 2901 states and 9998 transitions. [2022-11-25 23:25:52,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:25:52,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-25 23:25:52,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:52,974 INFO L225 Difference]: With dead ends: 2901 [2022-11-25 23:25:52,975 INFO L226 Difference]: Without dead ends: 2157 [2022-11-25 23:25:52,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:25:52,977 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 40 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:52,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 25 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:25:52,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157 states. [2022-11-25 23:25:53,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157 to 2157. [2022-11-25 23:25:53,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2157 states, 2156 states have (on average 3.4081632653061225) internal successors, (7348), 2156 states have internal predecessors, (7348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:53,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 7348 transitions. [2022-11-25 23:25:53,066 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 7348 transitions. Word has length 16 [2022-11-25 23:25:53,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:53,066 INFO L495 AbstractCegarLoop]: Abstraction has 2157 states and 7348 transitions. [2022-11-25 23:25:53,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:53,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 7348 transitions. [2022-11-25 23:25:53,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 23:25:53,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:53,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:53,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 23:25:53,072 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:25:53,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:53,075 INFO L85 PathProgramCache]: Analyzing trace with hash 786100699, now seen corresponding path program 1 times [2022-11-25 23:25:53,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:53,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902626946] [2022-11-25 23:25:53,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:53,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:53,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:53,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:53,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902626946] [2022-11-25 23:25:53,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902626946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:53,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:53,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:25:53,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654628425] [2022-11-25 23:25:53,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:53,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:25:53,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:53,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:25:53,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:25:53,409 INFO L87 Difference]: Start difference. First operand 2157 states and 7348 transitions. Second operand has 5 states, 5 states have (on average 3.4) 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) [2022-11-25 23:25:53,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:53,593 INFO L93 Difference]: Finished difference Result 1838 states and 5792 transitions. [2022-11-25 23:25:53,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:25:53,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) 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 [2022-11-25 23:25:53,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:53,601 INFO L225 Difference]: With dead ends: 1838 [2022-11-25 23:25:53,602 INFO L226 Difference]: Without dead ends: 1382 [2022-11-25 23:25:53,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:25:53,604 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 65 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:53,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 35 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:25:53,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-11-25 23:25:53,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1382. [2022-11-25 23:25:53,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1381 states have (on average 3.0876176683562635) internal successors, (4264), 1381 states have internal predecessors, (4264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:53,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 4264 transitions. [2022-11-25 23:25:53,662 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 4264 transitions. Word has length 17 [2022-11-25 23:25:53,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:53,663 INFO L495 AbstractCegarLoop]: Abstraction has 1382 states and 4264 transitions. [2022-11-25 23:25:53,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) 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) [2022-11-25 23:25:53,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 4264 transitions. [2022-11-25 23:25:53,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 23:25:53,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:53,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:53,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 23:25:53,671 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:25:53,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:53,672 INFO L85 PathProgramCache]: Analyzing trace with hash 561037650, now seen corresponding path program 1 times [2022-11-25 23:25:53,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:53,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614806402] [2022-11-25 23:25:53,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:53,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:53,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:53,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:53,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614806402] [2022-11-25 23:25:53,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614806402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:53,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:53,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:25:53,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981327619] [2022-11-25 23:25:53,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:53,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:25:53,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:53,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:25:53,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:25:53,991 INFO L87 Difference]: Start difference. First operand 1382 states and 4264 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:54,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:54,196 INFO L93 Difference]: Finished difference Result 1216 states and 3730 transitions. [2022-11-25 23:25:54,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:25:54,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2022-11-25 23:25:54,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:54,201 INFO L225 Difference]: With dead ends: 1216 [2022-11-25 23:25:54,201 INFO L226 Difference]: Without dead ends: 1078 [2022-11-25 23:25:54,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:25:54,202 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 77 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:54,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 40 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:25:54,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-11-25 23:25:54,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 934. [2022-11-25 23:25:54,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 933 states have (on average 3.0943193997856375) internal successors, (2887), 933 states have internal predecessors, (2887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:54,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 2887 transitions. [2022-11-25 23:25:54,237 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 2887 transitions. Word has length 20 [2022-11-25 23:25:54,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:54,239 INFO L495 AbstractCegarLoop]: Abstraction has 934 states and 2887 transitions. [2022-11-25 23:25:54,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:54,239 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 2887 transitions. [2022-11-25 23:25:54,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 23:25:54,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:54,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:54,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 23:25:54,243 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:25:54,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:54,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1630731374, now seen corresponding path program 1 times [2022-11-25 23:25:54,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:54,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451327553] [2022-11-25 23:25:54,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:54,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:55,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:55,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:55,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451327553] [2022-11-25 23:25:55,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451327553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:55,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:55,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:25:55,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809868615] [2022-11-25 23:25:55,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:55,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:25:55,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:55,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:25:55,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:25:55,632 INFO L87 Difference]: Start difference. First operand 934 states and 2887 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:56,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:56,011 INFO L93 Difference]: Finished difference Result 1370 states and 4175 transitions. [2022-11-25 23:25:56,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:25:56,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 23 [2022-11-25 23:25:56,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:56,017 INFO L225 Difference]: With dead ends: 1370 [2022-11-25 23:25:56,017 INFO L226 Difference]: Without dead ends: 1091 [2022-11-25 23:25:56,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:25:56,018 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 65 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:56,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 19 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:25:56,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2022-11-25 23:25:56,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 934. [2022-11-25 23:25:56,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 933 states have (on average 3.0117899249732045) internal successors, (2810), 933 states have internal predecessors, (2810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:56,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 2810 transitions. [2022-11-25 23:25:56,047 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 2810 transitions. Word has length 23 [2022-11-25 23:25:56,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:56,048 INFO L495 AbstractCegarLoop]: Abstraction has 934 states and 2810 transitions. [2022-11-25 23:25:56,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:56,048 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 2810 transitions. [2022-11-25 23:25:56,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 23:25:56,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:56,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:56,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 23:25:56,052 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:25:56,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:56,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1373706012, now seen corresponding path program 2 times [2022-11-25 23:25:56,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:56,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590993021] [2022-11-25 23:25:56,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:56,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:56,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:56,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:56,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590993021] [2022-11-25 23:25:56,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590993021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:56,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:56,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:25:56,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094310841] [2022-11-25 23:25:56,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:56,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:25:56,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:56,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:25:56,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:25:56,378 INFO L87 Difference]: Start difference. First operand 934 states and 2810 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:56,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:56,580 INFO L93 Difference]: Finished difference Result 904 states and 2749 transitions. [2022-11-25 23:25:56,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:25:56,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 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 23 [2022-11-25 23:25:56,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:56,582 INFO L225 Difference]: With dead ends: 904 [2022-11-25 23:25:56,582 INFO L226 Difference]: Without dead ends: 474 [2022-11-25 23:25:56,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:56,583 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 85 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:56,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 36 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:25:56,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-11-25 23:25:56,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 442. [2022-11-25 23:25:56,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 441 states have (on average 2.8458049886621315) internal successors, (1255), 441 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:56,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 1255 transitions. [2022-11-25 23:25:56,596 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 1255 transitions. Word has length 23 [2022-11-25 23:25:56,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:56,596 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 1255 transitions. [2022-11-25 23:25:56,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:56,596 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 1255 transitions. [2022-11-25 23:25:56,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 23:25:56,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:56,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:56,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 23:25:56,599 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:25:56,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:56,599 INFO L85 PathProgramCache]: Analyzing trace with hash 380741021, now seen corresponding path program 1 times [2022-11-25 23:25:56,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:56,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136257940] [2022-11-25 23:25:56,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:56,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:57,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:57,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:57,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136257940] [2022-11-25 23:25:57,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136257940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:57,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:57,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:25:57,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260317220] [2022-11-25 23:25:57,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:57,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:25:57,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:57,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:25:57,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:25:57,725 INFO L87 Difference]: Start difference. First operand 442 states and 1255 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:58,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:58,005 INFO L93 Difference]: Finished difference Result 668 states and 1836 transitions. [2022-11-25 23:25:58,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:25:58,006 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-25 23:25:58,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:58,008 INFO L225 Difference]: With dead ends: 668 [2022-11-25 23:25:58,008 INFO L226 Difference]: Without dead ends: 446 [2022-11-25 23:25:58,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-11-25 23:25:58,008 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 80 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:58,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 28 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:25:58,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-11-25 23:25:58,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 374. [2022-11-25 23:25:58,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 373 states have (on average 2.7640750670241285) internal successors, (1031), 373 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:58,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 1031 transitions. [2022-11-25 23:25:58,019 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 1031 transitions. Word has length 27 [2022-11-25 23:25:58,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:58,019 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 1031 transitions. [2022-11-25 23:25:58,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:25:58,020 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 1031 transitions. [2022-11-25 23:25:58,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 23:25:58,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:58,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:58,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 23:25:58,023 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:25:58,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:58,023 INFO L85 PathProgramCache]: Analyzing trace with hash -205357731, now seen corresponding path program 2 times [2022-11-25 23:25:58,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:58,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130202286] [2022-11-25 23:25:58,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:58,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:25:58,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:25:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:25:58,159 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:25:58,159 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:25:58,160 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-25 23:25:58,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-25 23:25:58,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-25 23:25:58,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-25 23:25:58,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-25 23:25:58,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-25 23:25:58,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-25 23:25:58,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-25 23:25:58,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-25 23:25:58,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-25 23:25:58,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-25 23:25:58,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-25 23:25:58,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-25 23:25:58,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-25 23:25:58,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-25 23:25:58,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-25 23:25:58,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 23:25:58,167 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:58,173 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 23:25:58,173 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:25:58,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:25:58 BasicIcfg [2022-11-25 23:25:58,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:25:58,261 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:25:58,261 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:25:58,262 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:25:58,262 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:25:34" (3/4) ... [2022-11-25 23:25:58,265 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:25:58,265 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:25:58,266 INFO L158 Benchmark]: Toolchain (without parser) took 25391.45ms. Allocated memory was 142.6MB in the beginning and 822.1MB in the end (delta: 679.5MB). Free memory was 96.7MB in the beginning and 182.8MB in the end (delta: -86.1MB). Peak memory consumption was 596.7MB. Max. memory is 16.1GB. [2022-11-25 23:25:58,266 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 107.0MB. Free memory is still 58.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:25:58,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 776.86ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 68.9MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 23:25:58,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 143.55ms. Allocated memory is still 142.6MB. Free memory was 68.9MB in the beginning and 112.9MB in the end (delta: -43.9MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-11-25 23:25:58,267 INFO L158 Benchmark]: Boogie Preprocessor took 76.21ms. Allocated memory is still 142.6MB. Free memory was 112.9MB in the beginning and 110.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:25:58,267 INFO L158 Benchmark]: RCFGBuilder took 1017.92ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 73.9MB in the end (delta: 36.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-25 23:25:58,268 INFO L158 Benchmark]: TraceAbstraction took 23366.00ms. Allocated memory was 142.6MB in the beginning and 822.1MB in the end (delta: 679.5MB). Free memory was 73.6MB in the beginning and 182.8MB in the end (delta: -109.2MB). Peak memory consumption was 570.3MB. Max. memory is 16.1GB. [2022-11-25 23:25:58,268 INFO L158 Benchmark]: Witness Printer took 3.84ms. Allocated memory is still 822.1MB. Free memory was 182.8MB in the beginning and 182.8MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:25:58,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 107.0MB. Free memory is still 58.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 776.86ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 68.9MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 143.55ms. Allocated memory is still 142.6MB. Free memory was 68.9MB in the beginning and 112.9MB in the end (delta: -43.9MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.21ms. Allocated memory is still 142.6MB. Free memory was 112.9MB in the beginning and 110.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1017.92ms. Allocated memory is still 142.6MB. Free memory was 110.8MB in the beginning and 73.9MB in the end (delta: 36.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 23366.00ms. Allocated memory was 142.6MB in the beginning and 822.1MB in the end (delta: 679.5MB). Free memory was 73.6MB in the beginning and 182.8MB in the end (delta: -109.2MB). Peak memory consumption was 570.3MB. Max. memory is 16.1GB. * Witness Printer took 3.84ms. Allocated memory is still 822.1MB. Free memory was 182.8MB in the beginning and 182.8MB in the end (delta: 2.0kB). 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: 7.7s, 159 PlacesBefore, 56 PlacesAfterwards, 148 TransitionsBefore, 44 TransitionsAfterwards, 3552 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 141 TotalNumberOfCompositions, 10130 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5004, independent: 4775, independent conditional: 0, independent unconditional: 4775, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2585, independent: 2503, independent conditional: 0, independent unconditional: 2503, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2585, independent: 2467, independent conditional: 0, independent unconditional: 2467, dependent: 118, dependent conditional: 0, dependent unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 118, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 661, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 595, dependent conditional: 0, dependent unconditional: 595, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5004, independent: 2272, independent conditional: 0, independent unconditional: 2272, dependent: 147, dependent conditional: 0, dependent unconditional: 147, unknown: 2585, unknown conditional: 0, unknown unconditional: 2585] , Statistics on independence cache: Total cache size (in pairs): 347, Positive cache size: 320, Positive conditional cache size: 0, Positive unconditional cache size: 320, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, 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: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L719] 0 _Bool main$tmp_guard0; [L720] 0 _Bool main$tmp_guard1; [L722] 0 int x = 0; [L724] 0 int y = 0; [L725] 0 _Bool y$flush_delayed; [L726] 0 int y$mem_tmp; [L727] 0 _Bool y$r_buff0_thd0; [L728] 0 _Bool y$r_buff0_thd1; [L729] 0 _Bool y$r_buff0_thd2; [L730] 0 _Bool y$r_buff0_thd3; [L731] 0 _Bool y$r_buff0_thd4; [L732] 0 _Bool y$r_buff1_thd0; [L733] 0 _Bool y$r_buff1_thd1; [L734] 0 _Bool y$r_buff1_thd2; [L735] 0 _Bool y$r_buff1_thd3; [L736] 0 _Bool y$r_buff1_thd4; [L737] 0 _Bool y$read_delayed; [L738] 0 int *y$read_delayed_var; [L739] 0 int y$w_buff0; [L740] 0 _Bool y$w_buff0_used; [L741] 0 int y$w_buff1; [L742] 0 _Bool y$w_buff1_used; [L744] 0 int z = 0; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L846] 0 pthread_t t773; [L847] FCALL, FORK 0 pthread_create(&t773, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t773, ((void *)0), P0, ((void *)0))=-3, t773={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L848] 0 pthread_t t774; [L849] FCALL, FORK 0 pthread_create(&t774, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t774, ((void *)0), P1, ((void *)0))=-2, t773={5:0}, t774={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L850] 0 pthread_t t775; [L851] FCALL, FORK 0 pthread_create(&t775, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t775, ((void *)0), P2, ((void *)0))=-1, t773={5:0}, t774={6:0}, t775={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L785] 3 y$w_buff1 = y$w_buff0 [L786] 3 y$w_buff0 = 2 [L787] 3 y$w_buff1_used = y$w_buff0_used [L788] 3 y$w_buff0_used = (_Bool)1 [L789] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L789] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L790] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L791] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L792] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L793] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L794] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L795] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L798] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L852] 0 pthread_t t776; [L853] FCALL, FORK 0 pthread_create(&t776, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t776, ((void *)0), P3, ((void *)0))=0, t773={5:0}, t774={6:0}, t775={7:0}, t776={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L815] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L818] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L821] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L750] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L753] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L758] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L760] 1 return 0; [L765] 2 x = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L768] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L801] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 3 return 0; [L824] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L825] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L826] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L827] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L828] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L833] 4 return 0; [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L780] 2 return 0; [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L857] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L857] RET 0 assume_abort_if_not(main$tmp_guard0) [L859] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L860] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L861] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L862] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L863] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t773={5:0}, t774={6:0}, t775={7:0}, t776={3:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L866] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L867] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L868] 0 y$flush_delayed = weak$$choice2 [L869] 0 y$mem_tmp = y [L870] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L871] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L872] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L873] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L874] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L876] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 main$tmp_guard1 = !(y == 2 && z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) [L878] 0 y = y$flush_delayed ? y$mem_tmp : y [L879] 0 y$flush_delayed = (_Bool)0 [L881] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=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: -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: 844]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 849]: 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: 847]: 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: 851]: 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: 853]: 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 9 procedures, 184 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 23.1s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 580 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 580 mSDsluCounter, 321 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 213 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1273 IncrementalHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 108 mSDtfsCounter, 1273 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5140occurred in iteration=0, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 3053 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 223 NumberOfCodeBlocks, 223 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 2111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 [2022-11-25 23:25:58,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur --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 0b278c8af08551c2e27294e2c5dca8c5bd0f6f00874366f88466c32210c557af --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:26:00,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:26:00,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:26:00,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:26:00,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:26:00,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:26:00,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:26:00,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:26:00,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:26:00,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:26:00,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:26:00,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:26:00,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:26:00,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:26:00,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:26:00,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:26:00,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:26:00,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:26:00,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:26:00,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:26:00,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:26:00,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:26:00,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:26:00,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:26:00,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:26:00,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:26:00,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:26:00,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:26:00,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:26:00,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:26:00,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:26:00,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:26:00,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:26:00,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:26:00,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:26:00,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:26:00,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:26:00,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:26:00,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:26:00,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:26:00,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:26:00,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-25 23:26:00,903 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:26:00,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:26:00,904 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:26:00,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:26:00,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:26:00,905 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:26:00,906 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:26:00,906 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:26:00,906 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:26:00,907 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:26:00,907 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:26:00,907 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:26:00,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 23:26:00,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 23:26:00,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:26:00,909 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:26:00,909 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:26:00,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:26:00,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:26:00,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:26:00,911 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 23:26:00,911 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 23:26:00,911 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 23:26:00,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:26:00,912 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:26:00,912 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:26:00,912 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:26:00,913 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:26:00,913 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:26:00,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:26:00,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:26:00,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:26:00,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:26:00,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:26:00,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:26:00,915 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:26:00,916 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:26:00,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:26:00,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:26:00,917 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_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G 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 -> 0b278c8af08551c2e27294e2c5dca8c5bd0f6f00874366f88466c32210c557af [2022-11-25 23:26:01,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:26:01,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:26:01,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:26:01,376 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:26:01,376 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:26:01,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i [2022-11-25 23:26:04,799 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:26:05,097 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:26:05,097 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i [2022-11-25 23:26:05,109 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/data/03262bd02/469a88e6810f4db886b91ee8b5da0c63/FLAG350d0cc32 [2022-11-25 23:26:05,128 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/data/03262bd02/469a88e6810f4db886b91ee8b5da0c63 [2022-11-25 23:26:05,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:26:05,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:26:05,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:26:05,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:26:05,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:26:05,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:26:05" (1/1) ... [2022-11-25 23:26:05,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8636d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:26:05, skipping insertion in model container [2022-11-25 23:26:05,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:26:05" (1/1) ... [2022-11-25 23:26:05,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:26:05,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:26:05,372 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_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i[966,979] [2022-11-25 23:26:05,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,624 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,628 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,628 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,641 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,642 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,642 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,651 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,667 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,668 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,671 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,673 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,681 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:26:05,713 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:26:05,728 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_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i[966,979] [2022-11-25 23:26:05,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,769 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,769 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,769 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,783 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,784 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:26:05,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:26:05,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:26:05,868 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:26:05,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:26:05 WrapperNode [2022-11-25 23:26:05,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:26:05,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:26:05,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:26:05,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:26:05,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:26:05" (1/1) ... [2022-11-25 23:26:05,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:26:05" (1/1) ... [2022-11-25 23:26:05,934 INFO L138 Inliner]: procedures = 180, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 160 [2022-11-25 23:26:05,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:26:05,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:26:05,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:26:05,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:26:05,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:26:05" (1/1) ... [2022-11-25 23:26:05,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:26:05" (1/1) ... [2022-11-25 23:26:05,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:26:05" (1/1) ... [2022-11-25 23:26:05,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:26:05" (1/1) ... [2022-11-25 23:26:05,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:26:05" (1/1) ... [2022-11-25 23:26:05,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:26:05" (1/1) ... [2022-11-25 23:26:05,981 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:26:05" (1/1) ... [2022-11-25 23:26:05,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:26:05" (1/1) ... [2022-11-25 23:26:05,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:26:05,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:26:05,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:26:05,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:26:05,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:26:05" (1/1) ... [2022-11-25 23:26:06,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:26:06,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:26:06,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:26:06,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:26:06,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 23:26:06,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:26:06,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:26:06,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:26:06,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 23:26:06,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:26:06,088 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 23:26:06,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 23:26:06,089 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 23:26:06,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 23:26:06,090 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 23:26:06,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 23:26:06,090 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-25 23:26:06,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-25 23:26:06,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 23:26:06,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:26:06,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:26:06,092 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 23:26:06,307 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:26:06,319 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:26:06,810 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:26:07,035 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:26:07,035 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:26:07,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:26:07 BoogieIcfgContainer [2022-11-25 23:26:07,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:26:07,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:26:07,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:26:07,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:26:07,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:26:05" (1/3) ... [2022-11-25 23:26:07,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f763a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:26:07, skipping insertion in model container [2022-11-25 23:26:07,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:26:05" (2/3) ... [2022-11-25 23:26:07,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f763a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:26:07, skipping insertion in model container [2022-11-25 23:26:07,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:26:07" (3/3) ... [2022-11-25 23:26:07,048 INFO L112 eAbstractionObserver]: Analyzing ICFG mix029_power.opt_pso.opt_rmo.opt.i [2022-11-25 23:26:07,069 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:26:07,069 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-25 23:26:07,069 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 23:26:07,224 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 23:26:07,273 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 23:26:07,307 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 149 transitions, 318 flow [2022-11-25 23:26:07,315 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 149 transitions, 318 flow [2022-11-25 23:26:07,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 149 transitions, 318 flow [2022-11-25 23:26:07,416 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2022-11-25 23:26:07,417 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 23:26:07,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 2/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 104 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-11-25 23:26:07,427 INFO L119 LiptonReduction]: Number of co-enabled transitions 3552 [2022-11-25 23:26:18,612 INFO L134 LiptonReduction]: Checked pairs total: 10106 [2022-11-25 23:26:18,612 INFO L136 LiptonReduction]: Total number of compositions: 142 [2022-11-25 23:26:18,620 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 44 transitions, 108 flow [2022-11-25 23:26:18,953 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5140 states, 5125 states have (on average 4.099121951219512) internal successors, (21008), 5139 states have internal predecessors, (21008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:18,977 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:26:18,985 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;@15cf4d82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:26:18,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-25 23:26:19,007 INFO L276 IsEmpty]: Start isEmpty. Operand has 5140 states, 5125 states have (on average 4.099121951219512) internal successors, (21008), 5139 states have internal predecessors, (21008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:19,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-25 23:26:19,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:19,014 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-25 23:26:19,014 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:26:19,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:19,023 INFO L85 PathProgramCache]: Analyzing trace with hash 614, now seen corresponding path program 1 times [2022-11-25 23:26:19,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:26:19,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048096268] [2022-11-25 23:26:19,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:19,038 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 [2022-11-25 23:26:19,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:26:19,051 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:26:19,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:19,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 23:26:19,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:26:19,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:19,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:26:19,180 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:26:19,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048096268] [2022-11-25 23:26:19,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048096268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:19,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:19,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 23:26:19,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039347728] [2022-11-25 23:26:19,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:19,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:26:19,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:26:19,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:26:19,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:26:19,248 INFO L87 Difference]: Start difference. First operand has 5140 states, 5125 states have (on average 4.099121951219512) internal successors, (21008), 5139 states have internal predecessors, (21008), 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) [2022-11-25 23:26:19,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:19,610 INFO L93 Difference]: Finished difference Result 4850 states and 19358 transitions. [2022-11-25 23:26:19,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:26:19,614 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 [2022-11-25 23:26:19,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:19,673 INFO L225 Difference]: With dead ends: 4850 [2022-11-25 23:26:19,673 INFO L226 Difference]: Without dead ends: 4850 [2022-11-25 23:26:19,674 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 [2022-11-25 23:26:19,677 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:19,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:26:19,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4850 states. [2022-11-25 23:26:19,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4850 to 4850. [2022-11-25 23:26:19,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4850 states, 4845 states have (on average 3.995459236326109) internal successors, (19358), 4849 states have internal predecessors, (19358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:20,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4850 states to 4850 states and 19358 transitions. [2022-11-25 23:26:20,065 INFO L78 Accepts]: Start accepts. Automaton has 4850 states and 19358 transitions. Word has length 1 [2022-11-25 23:26:20,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:20,065 INFO L495 AbstractCegarLoop]: Abstraction has 4850 states and 19358 transitions. [2022-11-25 23:26:20,065 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) [2022-11-25 23:26:20,066 INFO L276 IsEmpty]: Start isEmpty. Operand 4850 states and 19358 transitions. [2022-11-25 23:26:20,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 23:26:20,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:20,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:20,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:20,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:20,267 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:26:20,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:20,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1419585818, now seen corresponding path program 1 times [2022-11-25 23:26:20,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:26:20,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750248145] [2022-11-25 23:26:20,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:20,269 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 [2022-11-25 23:26:20,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:26:20,271 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:26:20,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:20,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:26:20,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:26:20,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:20,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:26:20,519 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:26:20,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750248145] [2022-11-25 23:26:20,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [750248145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:20,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:20,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:26:20,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942552681] [2022-11-25 23:26:20,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:20,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:26:20,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:26:20,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:26:20,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:26:20,525 INFO L87 Difference]: Start difference. First operand 4850 states and 19358 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:20,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:20,746 INFO L93 Difference]: Finished difference Result 3970 states and 15654 transitions. [2022-11-25 23:26:20,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:26:20,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 23:26:20,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:20,839 INFO L225 Difference]: With dead ends: 3970 [2022-11-25 23:26:20,839 INFO L226 Difference]: Without dead ends: 3850 [2022-11-25 23:26:20,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:26:20,841 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 15 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:20,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 10 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:26:20,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2022-11-25 23:26:21,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 3850. [2022-11-25 23:26:21,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3850 states, 3848 states have (on average 3.9625779625779627) internal successors, (15248), 3849 states have internal predecessors, (15248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:21,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3850 states to 3850 states and 15248 transitions. [2022-11-25 23:26:21,159 INFO L78 Accepts]: Start accepts. Automaton has 3850 states and 15248 transitions. Word has length 7 [2022-11-25 23:26:21,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:21,160 INFO L495 AbstractCegarLoop]: Abstraction has 3850 states and 15248 transitions. [2022-11-25 23:26:21,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:21,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3850 states and 15248 transitions. [2022-11-25 23:26:21,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:26:21,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:21,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:21,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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)] Forceful destruction successful, exit code 0 [2022-11-25 23:26:21,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:21,377 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:26:21,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:21,378 INFO L85 PathProgramCache]: Analyzing trace with hash 121628495, now seen corresponding path program 1 times [2022-11-25 23:26:21,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:26:21,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85128885] [2022-11-25 23:26:21,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:21,379 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 [2022-11-25 23:26:21,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:26:21,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:26:21,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:21,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:26:21,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:26:21,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:21,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:26:21,635 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:26:21,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85128885] [2022-11-25 23:26:21,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85128885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:21,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:21,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:26:21,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521744897] [2022-11-25 23:26:21,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:21,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:26:21,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:26:21,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:26:21,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:26:21,638 INFO L87 Difference]: Start difference. First operand 3850 states and 15248 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:21,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:21,953 INFO L93 Difference]: Finished difference Result 3250 states and 11398 transitions. [2022-11-25 23:26:21,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:26:21,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 23:26:21,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:21,976 INFO L225 Difference]: With dead ends: 3250 [2022-11-25 23:26:21,976 INFO L226 Difference]: Without dead ends: 2650 [2022-11-25 23:26:21,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:26:21,980 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 45 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:21,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 25 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:26:22,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2022-11-25 23:26:22,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2650. [2022-11-25 23:26:22,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2650 states, 2648 states have (on average 3.4924471299093653) internal successors, (9248), 2649 states have internal predecessors, (9248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:22,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 9248 transitions. [2022-11-25 23:26:22,207 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 9248 transitions. Word has length 11 [2022-11-25 23:26:22,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:22,208 INFO L495 AbstractCegarLoop]: Abstraction has 2650 states and 9248 transitions. [2022-11-25 23:26:22,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:22,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 9248 transitions. [2022-11-25 23:26:22,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 23:26:22,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:22,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:22,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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)] Forceful destruction successful, exit code 0 [2022-11-25 23:26:22,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:22,432 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:26:22,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:22,433 INFO L85 PathProgramCache]: Analyzing trace with hash 773877537, now seen corresponding path program 1 times [2022-11-25 23:26:22,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:26:22,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787959318] [2022-11-25 23:26:22,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:22,434 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 [2022-11-25 23:26:22,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:26:22,435 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:26:22,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:22,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 23:26:22,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:26:22,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:22,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:26:22,627 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:26:22,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787959318] [2022-11-25 23:26:22,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787959318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:22,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:22,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:26:22,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207866004] [2022-11-25 23:26:22,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:22,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:26:22,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:26:22,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:26:22,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:26:22,630 INFO L87 Difference]: Start difference. First operand 2650 states and 9248 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:22,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:22,950 INFO L93 Difference]: Finished difference Result 1770 states and 5486 transitions. [2022-11-25 23:26:22,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:26:22,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2022-11-25 23:26:22,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:22,960 INFO L225 Difference]: With dead ends: 1770 [2022-11-25 23:26:22,960 INFO L226 Difference]: Without dead ends: 1410 [2022-11-25 23:26:22,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:26:22,961 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 61 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:22,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 45 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:26:22,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2022-11-25 23:26:23,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1410. [2022-11-25 23:26:23,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1408 states have (on average 3.0454545454545454) internal successors, (4288), 1409 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:23,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 4288 transitions. [2022-11-25 23:26:23,051 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 4288 transitions. Word has length 14 [2022-11-25 23:26:23,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:23,052 INFO L495 AbstractCegarLoop]: Abstraction has 1410 states and 4288 transitions. [2022-11-25 23:26:23,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:23,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 4288 transitions. [2022-11-25 23:26:23,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 23:26:23,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:23,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:23,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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)] Forceful destruction successful, exit code 0 [2022-11-25 23:26:23,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:23,267 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:26:23,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:23,268 INFO L85 PathProgramCache]: Analyzing trace with hash -792573294, now seen corresponding path program 1 times [2022-11-25 23:26:23,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:26:23,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277334706] [2022-11-25 23:26:23,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:23,268 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 [2022-11-25 23:26:23,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:26:23,269 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:26:23,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:23,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 23:26:23,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:26:23,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:23,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:26:23,514 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:26:23,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277334706] [2022-11-25 23:26:23,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277334706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:23,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:23,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:26:23,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271508249] [2022-11-25 23:26:23,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:23,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:26:23,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:26:23,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:26:23,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:26:23,520 INFO L87 Difference]: Start difference. First operand 1410 states and 4288 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:23,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:23,899 INFO L93 Difference]: Finished difference Result 1047 states and 3164 transitions. [2022-11-25 23:26:23,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:26:23,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-25 23:26:23,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:23,906 INFO L225 Difference]: With dead ends: 1047 [2022-11-25 23:26:23,906 INFO L226 Difference]: Without dead ends: 935 [2022-11-25 23:26:23,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:26:23,913 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 74 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:23,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 80 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:26:23,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2022-11-25 23:26:23,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 935. [2022-11-25 23:26:23,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 933 states have (on average 3.0685959271168275) internal successors, (2863), 934 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:23,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 2863 transitions. [2022-11-25 23:26:23,947 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 2863 transitions. Word has length 18 [2022-11-25 23:26:23,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:23,948 INFO L495 AbstractCegarLoop]: Abstraction has 935 states and 2863 transitions. [2022-11-25 23:26:23,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:23,948 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 2863 transitions. [2022-11-25 23:26:23,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 23:26:23,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:23,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:23,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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)] Forceful destruction successful, exit code 0 [2022-11-25 23:26:24,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:24,173 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:26:24,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:24,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1731843369, now seen corresponding path program 1 times [2022-11-25 23:26:24,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:26:24,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907873223] [2022-11-25 23:26:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:24,176 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 [2022-11-25 23:26:24,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:26:24,177 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:26:24,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:24,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 23:26:24,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:26:24,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:24,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:26:24,471 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:26:24,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907873223] [2022-11-25 23:26:24,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907873223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:24,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:24,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 23:26:24,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534867804] [2022-11-25 23:26:24,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:24,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:26:24,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:26:24,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:26:24,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:26:24,475 INFO L87 Difference]: Start difference. First operand 935 states and 2863 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:24,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:24,954 INFO L93 Difference]: Finished difference Result 872 states and 2735 transitions. [2022-11-25 23:26:24,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:26:24,955 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 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 22 [2022-11-25 23:26:24,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:24,960 INFO L225 Difference]: With dead ends: 872 [2022-11-25 23:26:24,960 INFO L226 Difference]: Without dead ends: 855 [2022-11-25 23:26:24,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:26:24,962 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 69 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:24,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 120 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:26:24,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2022-11-25 23:26:24,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2022-11-25 23:26:24,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 853 states have (on average 3.168815943728019) internal successors, (2703), 854 states have internal predecessors, (2703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:24,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 2703 transitions. [2022-11-25 23:26:24,997 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 2703 transitions. Word has length 22 [2022-11-25 23:26:24,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:24,997 INFO L495 AbstractCegarLoop]: Abstraction has 855 states and 2703 transitions. [2022-11-25 23:26:24,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:24,998 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 2703 transitions. [2022-11-25 23:26:25,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 23:26:25,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:25,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:25,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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)] Forceful destruction successful, exit code 0 [2022-11-25 23:26:25,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:25,219 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:26:25,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:25,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1211425915, now seen corresponding path program 1 times [2022-11-25 23:26:25,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:26:25,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064984668] [2022-11-25 23:26:25,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:25,221 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 [2022-11-25 23:26:25,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:26:25,231 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:26:25,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:26:25,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 23:26:25,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:26:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:25,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:26:25,447 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:26:25,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064984668] [2022-11-25 23:26:25,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064984668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:25,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:25,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:26:25,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035702103] [2022-11-25 23:26:25,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:25,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:26:25,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:26:25,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:26:25,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:26:25,449 INFO L87 Difference]: Start difference. First operand 855 states and 2703 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:25,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:25,632 INFO L93 Difference]: Finished difference Result 1195 states and 3679 transitions. [2022-11-25 23:26:25,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:26:25,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-25 23:26:25,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:25,639 INFO L225 Difference]: With dead ends: 1195 [2022-11-25 23:26:25,640 INFO L226 Difference]: Without dead ends: 1195 [2022-11-25 23:26:25,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:26:25,641 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 30 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:25,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 22 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:26:25,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2022-11-25 23:26:25,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1193. [2022-11-25 23:26:25,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1191 states have (on average 3.08816120906801) internal successors, (3678), 1192 states have internal predecessors, (3678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:25,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 3678 transitions. [2022-11-25 23:26:25,690 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 3678 transitions. Word has length 27 [2022-11-25 23:26:25,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:25,691 INFO L495 AbstractCegarLoop]: Abstraction has 1193 states and 3678 transitions. [2022-11-25 23:26:25,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:25,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 3678 transitions. [2022-11-25 23:26:25,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 23:26:25,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:25,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:25,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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)] Forceful destruction successful, exit code 0 [2022-11-25 23:26:25,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:25,908 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:26:25,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:25,909 INFO L85 PathProgramCache]: Analyzing trace with hash -62386329, now seen corresponding path program 2 times [2022-11-25 23:26:25,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:26:25,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709517393] [2022-11-25 23:26:25,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 23:26:25,910 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 [2022-11-25 23:26:25,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:26:25,912 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:26:25,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 (9)] Waiting until timeout for monitored process [2022-11-25 23:26:26,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 23:26:26,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:26:26,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 23:26:26,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:26:26,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:26,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:26:26,548 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:26:26,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709517393] [2022-11-25 23:26:26,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [709517393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:26,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:26,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:26:26,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480615370] [2022-11-25 23:26:26,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:26,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:26:26,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:26:26,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:26:26,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:26:26,550 INFO L87 Difference]: Start difference. First operand 1193 states and 3678 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:26,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:26,806 INFO L93 Difference]: Finished difference Result 1523 states and 4567 transitions. [2022-11-25 23:26:26,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:26:26,806 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-25 23:26:26,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:26,812 INFO L225 Difference]: With dead ends: 1523 [2022-11-25 23:26:26,812 INFO L226 Difference]: Without dead ends: 1523 [2022-11-25 23:26:26,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:26:26,813 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 99 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:26,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 31 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:26:26,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2022-11-25 23:26:26,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1185. [2022-11-25 23:26:26,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1183 states have (on average 3.0921386306001692) internal successors, (3658), 1184 states have internal predecessors, (3658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:26,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 3658 transitions. [2022-11-25 23:26:26,852 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 3658 transitions. Word has length 27 [2022-11-25 23:26:26,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:26,852 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 3658 transitions. [2022-11-25 23:26:26,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:26,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 3658 transitions. [2022-11-25 23:26:26,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 23:26:26,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:26,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:26,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 (9)] Forceful destruction successful, exit code 0 [2022-11-25 23:26:27,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:27,075 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:26:27,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:27,076 INFO L85 PathProgramCache]: Analyzing trace with hash -634401275, now seen corresponding path program 3 times [2022-11-25 23:26:27,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:26:27,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884225571] [2022-11-25 23:26:27,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 23:26:27,077 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 [2022-11-25 23:26:27,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:26:27,078 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:26:27,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 (10)] Waiting until timeout for monitored process [2022-11-25 23:26:27,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 23:26:27,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:26:27,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 23:26:27,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:26:27,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:26:27,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:26:27,748 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:26:27,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884225571] [2022-11-25 23:26:27,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884225571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:26:27,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:26:27,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:26:27,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121618258] [2022-11-25 23:26:27,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:26:27,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:26:27,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:26:27,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:26:27,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:26:27,751 INFO L87 Difference]: Start difference. First operand 1185 states and 3658 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:27,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:26:27,977 INFO L93 Difference]: Finished difference Result 1479 states and 4445 transitions. [2022-11-25 23:26:27,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:26:27,978 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-25 23:26:27,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:26:27,984 INFO L225 Difference]: With dead ends: 1479 [2022-11-25 23:26:27,985 INFO L226 Difference]: Without dead ends: 1479 [2022-11-25 23:26:27,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:26:27,986 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 76 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:26:27,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 31 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:26:27,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2022-11-25 23:26:28,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1161. [2022-11-25 23:26:28,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1159 states have (on average 3.09404659188956) internal successors, (3586), 1160 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:28,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 3586 transitions. [2022-11-25 23:26:28,032 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 3586 transitions. Word has length 27 [2022-11-25 23:26:28,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:26:28,033 INFO L495 AbstractCegarLoop]: Abstraction has 1161 states and 3586 transitions. [2022-11-25 23:26:28,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:26:28,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 3586 transitions. [2022-11-25 23:26:28,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 23:26:28,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:28,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:28,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 (10)] Forceful destruction successful, exit code 0 [2022-11-25 23:26:28,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:28,251 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 23:26:28,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:28,252 INFO L85 PathProgramCache]: Analyzing trace with hash 702752849, now seen corresponding path program 4 times [2022-11-25 23:26:28,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:26:28,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631669398] [2022-11-25 23:26:28,253 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 23:26:28,253 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 [2022-11-25 23:26:28,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:26:28,254 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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) [2022-11-25 23:26:28,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 (11)] Waiting until timeout for monitored process [2022-11-25 23:26:28,423 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 23:26:28,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-25 23:26:28,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:26:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:26:28,600 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 23:26:28,600 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:26:28,601 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-25 23:26:28,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-25 23:26:28,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-25 23:26:28,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-25 23:26:28,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-25 23:26:28,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-25 23:26:28,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-25 23:26:28,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-25 23:26:28,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-25 23:26:28,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-25 23:26:28,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-25 23:26:28,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-25 23:26:28,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-25 23:26:28,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-25 23:26:28,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-25 23:26:28,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-25 23:26:28,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 (11)] Forceful destruction successful, exit code 0 [2022-11-25 23:26:28,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/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 [2022-11-25 23:26:28,821 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:28,826 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 23:26:28,826 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:26:28,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:26:28 BasicIcfg [2022-11-25 23:26:28,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:26:28,949 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:26:28,949 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:26:28,949 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:26:28,950 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:26:07" (3/4) ... [2022-11-25 23:26:28,958 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:26:28,958 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:26:28,959 INFO L158 Benchmark]: Toolchain (without parser) took 23827.17ms. Allocated memory was 65.0MB in the beginning and 440.4MB in the end (delta: 375.4MB). Free memory was 34.5MB in the beginning and 309.6MB in the end (delta: -275.1MB). Peak memory consumption was 101.7MB. Max. memory is 16.1GB. [2022-11-25 23:26:28,960 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 65.0MB. Free memory was 43.7MB in the beginning and 43.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:26:28,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 736.90ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 34.3MB in the beginning and 52.0MB in the end (delta: -17.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-11-25 23:26:28,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.82ms. Allocated memory is still 92.3MB. Free memory was 52.0MB in the beginning and 49.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:26:28,961 INFO L158 Benchmark]: Boogie Preprocessor took 60.83ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 46.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:26:28,962 INFO L158 Benchmark]: RCFGBuilder took 1041.53ms. Allocated memory is still 92.3MB. Free memory was 46.9MB in the beginning and 41.2MB in the end (delta: 5.7MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2022-11-25 23:26:28,962 INFO L158 Benchmark]: TraceAbstraction took 21908.40ms. Allocated memory was 92.3MB in the beginning and 440.4MB in the end (delta: 348.1MB). Free memory was 40.6MB in the beginning and 309.6MB in the end (delta: -269.0MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. [2022-11-25 23:26:28,963 INFO L158 Benchmark]: Witness Printer took 9.55ms. Allocated memory is still 440.4MB. Free memory is still 309.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:26:28,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 65.0MB. Free memory was 43.7MB in the beginning and 43.6MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 736.90ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 34.3MB in the beginning and 52.0MB in the end (delta: -17.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.82ms. Allocated memory is still 92.3MB. Free memory was 52.0MB in the beginning and 49.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.83ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 46.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1041.53ms. Allocated memory is still 92.3MB. Free memory was 46.9MB in the beginning and 41.2MB in the end (delta: 5.7MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * TraceAbstraction took 21908.40ms. Allocated memory was 92.3MB in the beginning and 440.4MB in the end (delta: 348.1MB). Free memory was 40.6MB in the beginning and 309.6MB in the end (delta: -269.0MB). Peak memory consumption was 80.3MB. Max. memory is 16.1GB. * Witness Printer took 9.55ms. Allocated memory is still 440.4MB. Free memory is still 309.6MB. 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: 11.3s, 160 PlacesBefore, 56 PlacesAfterwards, 149 TransitionsBefore, 44 TransitionsAfterwards, 3552 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 142 TotalNumberOfCompositions, 10106 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5163, independent: 4934, independent conditional: 0, independent unconditional: 4934, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2634, independent: 2554, independent conditional: 0, independent unconditional: 2554, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2634, independent: 2506, independent conditional: 0, independent unconditional: 2506, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 128, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 668, independent: 86, independent conditional: 0, independent unconditional: 86, dependent: 582, dependent conditional: 0, dependent unconditional: 582, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5163, independent: 2380, independent conditional: 0, independent unconditional: 2380, dependent: 149, dependent conditional: 0, dependent unconditional: 149, unknown: 2634, unknown conditional: 0, unknown unconditional: 2634] , Statistics on independence cache: Total cache size (in pairs): 360, Positive cache size: 335, Positive conditional cache size: 0, Positive unconditional cache size: 335, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, 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: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L719] 0 _Bool main$tmp_guard0; [L720] 0 _Bool main$tmp_guard1; [L722] 0 int x = 0; [L724] 0 int y = 0; [L725] 0 _Bool y$flush_delayed; [L726] 0 int y$mem_tmp; [L727] 0 _Bool y$r_buff0_thd0; [L728] 0 _Bool y$r_buff0_thd1; [L729] 0 _Bool y$r_buff0_thd2; [L730] 0 _Bool y$r_buff0_thd3; [L731] 0 _Bool y$r_buff0_thd4; [L732] 0 _Bool y$r_buff1_thd0; [L733] 0 _Bool y$r_buff1_thd1; [L734] 0 _Bool y$r_buff1_thd2; [L735] 0 _Bool y$r_buff1_thd3; [L736] 0 _Bool y$r_buff1_thd4; [L737] 0 _Bool y$read_delayed; [L738] 0 int *y$read_delayed_var; [L739] 0 int y$w_buff0; [L740] 0 _Bool y$w_buff0_used; [L741] 0 int y$w_buff1; [L742] 0 _Bool y$w_buff1_used; [L744] 0 int z = 0; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L846] 0 pthread_t t773; [L847] FCALL, FORK 0 pthread_create(&t773, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t773, ((void *)0), P0, ((void *)0))=-1, t773={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L848] 0 pthread_t t774; [L849] FCALL, FORK 0 pthread_create(&t774, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t774, ((void *)0), P1, ((void *)0))=0, t773={3:0}, t774={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L850] 0 pthread_t t775; [L851] FCALL, FORK 0 pthread_create(&t775, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t775, ((void *)0), P2, ((void *)0))=1, t773={3:0}, t774={7:0}, t775={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L852] 0 pthread_t t776; [L785] 3 y$w_buff1 = y$w_buff0 [L786] 3 y$w_buff0 = 2 [L787] 3 y$w_buff1_used = y$w_buff0_used [L788] 3 y$w_buff0_used = (_Bool)1 [L789] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L789] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L790] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L791] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L792] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L793] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L794] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L795] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L798] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L853] FCALL, FORK 0 pthread_create(&t776, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t776, ((void *)0), P3, ((void *)0))=2, t773={3:0}, t774={7:0}, t775={11:0}, t776={15:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L815] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L818] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L821] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L824] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L825] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L826] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L827] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L828] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L833] 4 return 0; [L750] 1 a = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L753] 1 __unbuffered_p0_EAX = x VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L765] 2 x = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L768] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L758] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L760] 1 return 0; [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L780] 2 return 0; [L801] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 3 return 0; [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L857] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L857] RET 0 assume_abort_if_not(main$tmp_guard0) [L859] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L860] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L861] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L862] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L863] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t773={3:0}, t774={7:0}, t775={11:0}, t776={15:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L866] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L867] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L868] 0 y$flush_delayed = weak$$choice2 [L869] 0 y$mem_tmp = y [L870] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L871] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L872] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L873] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L874] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L876] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 main$tmp_guard1 = !(y == 2 && z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) [L878] 0 y = y$flush_delayed ? y$mem_tmp : y [L879] 0 y$flush_delayed = (_Bool)0 [L881] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=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: -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: 844]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 853]: 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: 849]: 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: 847]: 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: 851]: 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 9 procedures, 185 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 21.6s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 469 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 469 mSDsluCounter, 369 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 253 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1377 IncrementalHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 116 mSDtfsCounter, 1377 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5140occurred in iteration=0, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 658 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 1083 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1318 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 [2022-11-25 23:26:29,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c0a7b65-6fbb-4028-a6e2-f90c1d9b516e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample