./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76dbb78f4fe406633111c7d7e2c1e8bd933a1f67e6e1cf5d4cbd1b0379bfe086 --- 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 18:16:39,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:16:39,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:16:39,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:16:39,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:16:39,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:16:39,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:16:39,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:16:39,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:16:39,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:16:39,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:16:39,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:16:39,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:16:39,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:16:39,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:16:39,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:16:39,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:16:39,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:16:39,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:16:39,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:16:39,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:16:39,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:16:39,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:16:39,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:16:39,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:16:39,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:16:39,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:16:39,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:16:39,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:16:39,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:16:39,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:16:39,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:16:39,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:16:39,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:16:39,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:16:39,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:16:39,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:16:39,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:16:39,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:16:39,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:16:39,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:16:39,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-25 18:16:39,596 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:16:39,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:16:39,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:16:39,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:16:39,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:16:39,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:16:39,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:16:39,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:16:39,601 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:16:39,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:16:39,603 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:16:39,603 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:16:39,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:16:39,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:16:39,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:16:39,604 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 18:16:39,604 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 18:16:39,604 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 18:16:39,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:16:39,605 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:16:39,605 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:16:39,605 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:16:39,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:16:39,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:16:39,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:16:39,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:16:39,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:16:39,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:16:39,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:16:39,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:16:39,608 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:16:39,608 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:16:39,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:16:39,609 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76dbb78f4fe406633111c7d7e2c1e8bd933a1f67e6e1cf5d4cbd1b0379bfe086 [2022-11-25 18:16:40,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:16:40,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:16:40,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:16:40,073 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:16:40,073 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:16:40,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-25 18:16:43,731 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:16:44,059 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:16:44,059 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-25 18:16:44,079 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/data/da5d2be29/992ad546fa874fc092adc51838a7d144/FLAG9545822e9 [2022-11-25 18:16:44,099 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/data/da5d2be29/992ad546fa874fc092adc51838a7d144 [2022-11-25 18:16:44,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:16:44,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:16:44,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:16:44,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:16:44,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:16:44,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:16:44" (1/1) ... [2022-11-25 18:16:44,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d4c09e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:16:44, skipping insertion in model container [2022-11-25 18:16:44,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:16:44" (1/1) ... [2022-11-25 18:16:44,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:16:44,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:16:44,421 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_5b8a7a1e-7731-479d-9366-58c30ae60d4e/sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i[979,992] [2022-11-25 18:16:44,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,819 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,819 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,821 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,840 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,841 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,849 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,867 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,885 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,909 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,911 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:44,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:44,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:16:44,947 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:16:44,964 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_5b8a7a1e-7731-479d-9366-58c30ae60d4e/sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i[979,992] [2022-11-25 18:16:45,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,036 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,037 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,038 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,047 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,048 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,051 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,052 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,053 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,054 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,055 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,058 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,058 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,059 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,060 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,071 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,076 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,076 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,080 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:16:45,081 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:16:45,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:16:45,152 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:16:45,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:16:45 WrapperNode [2022-11-25 18:16:45,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:16:45,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:16:45,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:16:45,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:16:45,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:16:45" (1/1) ... [2022-11-25 18:16:45,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:16:45" (1/1) ... [2022-11-25 18:16:45,249 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2022-11-25 18:16:45,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:16:45,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:16:45,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:16:45,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:16:45,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:16:45" (1/1) ... [2022-11-25 18:16:45,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:16:45" (1/1) ... [2022-11-25 18:16:45,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:16:45" (1/1) ... [2022-11-25 18:16:45,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:16:45" (1/1) ... [2022-11-25 18:16:45,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:16:45" (1/1) ... [2022-11-25 18:16:45,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:16:45" (1/1) ... [2022-11-25 18:16:45,286 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:16:45" (1/1) ... [2022-11-25 18:16:45,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:16:45" (1/1) ... [2022-11-25 18:16:45,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:16:45,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:16:45,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:16:45,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:16:45,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:16:45" (1/1) ... [2022-11-25 18:16:45,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:16:45,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:16:45,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:16:45,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:16:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:16:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 18:16:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:16:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:16:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:16:45,413 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 18:16:45,413 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 18:16:45,413 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 18:16:45,413 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 18:16:45,413 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 18:16:45,414 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 18:16:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-25 18:16:45,414 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-25 18:16:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:16:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 18:16:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:16:45,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:16:45,419 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 18:16:45,653 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:16:45,655 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:16:46,389 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:16:46,619 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:16:46,619 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:16:46,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:16:46 BoogieIcfgContainer [2022-11-25 18:16:46,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:16:46,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:16:46,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:16:46,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:16:46,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:16:44" (1/3) ... [2022-11-25 18:16:46,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578d59d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:16:46, skipping insertion in model container [2022-11-25 18:16:46,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:16:45" (2/3) ... [2022-11-25 18:16:46,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578d59d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:16:46, skipping insertion in model container [2022-11-25 18:16:46,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:16:46" (3/3) ... [2022-11-25 18:16:46,644 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-25 18:16:46,669 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:16:46,670 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-25 18:16:46,670 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:16:46,822 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 18:16:46,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 148 transitions, 316 flow [2022-11-25 18:16:47,036 INFO L130 PetriNetUnfolder]: 2/144 cut-off events. [2022-11-25 18:16:47,041 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:16:47,049 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 103 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 18:16:47,050 INFO L82 GeneralOperation]: Start removeDead. Operand has 159 places, 148 transitions, 316 flow [2022-11-25 18:16:47,062 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 155 places, 144 transitions, 300 flow [2022-11-25 18:16:47,070 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:16:47,107 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 144 transitions, 300 flow [2022-11-25 18:16:47,120 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 144 transitions, 300 flow [2022-11-25 18:16:47,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 144 transitions, 300 flow [2022-11-25 18:16:47,193 INFO L130 PetriNetUnfolder]: 2/144 cut-off events. [2022-11-25 18:16:47,199 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:16:47,200 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 18:16:47,204 INFO L119 LiptonReduction]: Number of co-enabled transitions 3644 [2022-11-25 18:16:55,180 INFO L134 LiptonReduction]: Checked pairs total: 9972 [2022-11-25 18:16:55,181 INFO L136 LiptonReduction]: Total number of compositions: 138 [2022-11-25 18:16:55,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:16:55,210 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=PETRI_NET, 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;@9362f83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:16:55,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-25 18:16:55,215 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-11-25 18:16:55,216 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:16:55,216 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:16:55,217 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 18:16:55,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:16:55,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:16:55,225 INFO L85 PathProgramCache]: Analyzing trace with hash 620, now seen corresponding path program 1 times [2022-11-25 18:16:55,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:16:55,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43790873] [2022-11-25 18:16:55,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:55,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:16:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:55,408 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 18:16:55,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:16:55,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43790873] [2022-11-25 18:16:55,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43790873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:16:55,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:16:55,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 18:16:55,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77808514] [2022-11-25 18:16:55,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:16:55,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:16:55,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:16:55,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:16:55,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:16:55,474 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 286 [2022-11-25 18:16:55,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 92 flow. Second operand has 2 states, 2 states have (on average 133.5) internal successors, (267), 2 states have internal predecessors, (267), 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 18:16:55,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:16:55,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 286 [2022-11-25 18:16:55,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:16:58,069 INFO L130 PetriNetUnfolder]: 8719/11766 cut-off events. [2022-11-25 18:16:58,070 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2022-11-25 18:16:58,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23714 conditions, 11766 events. 8719/11766 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 59701 event pairs, 8719 based on Foata normal form. 0/10334 useless extension candidates. Maximal degree in co-relation 23702. Up to 11731 conditions per place. [2022-11-25 18:16:58,183 INFO L137 encePairwiseOnDemand]: 277/286 looper letters, 28 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2022-11-25 18:16:58,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 130 flow [2022-11-25 18:16:58,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:16:58,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:16:58,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 303 transitions. [2022-11-25 18:16:58,211 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5297202797202797 [2022-11-25 18:16:58,212 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 303 transitions. [2022-11-25 18:16:58,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 303 transitions. [2022-11-25 18:16:58,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:16:58,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 303 transitions. [2022-11-25 18:16:58,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 151.5) internal successors, (303), 2 states have internal predecessors, (303), 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 18:16:58,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 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 18:16:58,238 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 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 18:16:58,241 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 92 flow. Second operand 2 states and 303 transitions. [2022-11-25 18:16:58,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 130 flow [2022-11-25 18:16:58,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 31 transitions, 126 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-25 18:16:58,252 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 70 flow [2022-11-25 18:16:58,254 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2022-11-25 18:16:58,260 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2022-11-25 18:16:58,261 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 70 flow [2022-11-25 18:16:58,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 133.5) internal successors, (267), 2 states have internal predecessors, (267), 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 18:16:58,261 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:16:58,262 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 18:16:58,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:16:58,264 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:16:58,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:16:58,277 INFO L85 PathProgramCache]: Analyzing trace with hash 608252, now seen corresponding path program 1 times [2022-11-25 18:16:58,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:16:58,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234374452] [2022-11-25 18:16:58,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:58,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:16:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:58,705 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 18:16:58,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:16:58,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234374452] [2022-11-25 18:16:58,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234374452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:16:58,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:16:58,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:16:58,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218515186] [2022-11-25 18:16:58,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:16:58,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:16:58,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:16:58,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:16:58,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:16:58,714 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 286 [2022-11-25 18:16:58,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:16:58,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:16:58,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 286 [2022-11-25 18:16:58,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:00,724 INFO L130 PetriNetUnfolder]: 6855/9425 cut-off events. [2022-11-25 18:17:00,724 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:17:00,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18862 conditions, 9425 events. 6855/9425 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 48006 event pairs, 2603 based on Foata normal form. 0/8779 useless extension candidates. Maximal degree in co-relation 18859. Up to 7399 conditions per place. [2022-11-25 18:17:00,789 INFO L137 encePairwiseOnDemand]: 283/286 looper letters, 45 selfloop transitions, 2 changer transitions 2/52 dead transitions. [2022-11-25 18:17:00,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 216 flow [2022-11-25 18:17:00,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:17:00,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:17:00,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2022-11-25 18:17:00,792 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5198135198135199 [2022-11-25 18:17:00,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2022-11-25 18:17:00,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2022-11-25 18:17:00,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:00,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2022-11-25 18:17:00,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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 18:17:00,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 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 18:17:00,798 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 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 18:17:00,798 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 70 flow. Second operand 3 states and 446 transitions. [2022-11-25 18:17:00,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 216 flow [2022-11-25 18:17:00,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 52 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:17:00,800 INFO L231 Difference]: Finished difference. Result has 42 places, 29 transitions, 70 flow [2022-11-25 18:17:00,800 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=42, PETRI_TRANSITIONS=29} [2022-11-25 18:17:00,801 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -10 predicate places. [2022-11-25 18:17:00,801 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 70 flow [2022-11-25 18:17:00,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:17:00,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:00,802 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:17:00,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:17:00,802 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:00,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:00,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1309711302, now seen corresponding path program 1 times [2022-11-25 18:17:00,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:17:00,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309681530] [2022-11-25 18:17:00,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:00,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:17:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:01,721 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 18:17:01,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:17:01,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309681530] [2022-11-25 18:17:01,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309681530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:01,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:01,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:17:01,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691920895] [2022-11-25 18:17:01,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:01,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:17:01,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:17:01,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:17:01,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:17:02,037 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 286 [2022-11-25 18:17:02,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 70 flow. Second operand has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 18:17:02,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:02,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 286 [2022-11-25 18:17:02,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:03,821 INFO L130 PetriNetUnfolder]: 4903/6693 cut-off events. [2022-11-25 18:17:03,822 INFO L131 PetriNetUnfolder]: For 441/441 co-relation queries the response was YES. [2022-11-25 18:17:03,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13982 conditions, 6693 events. 4903/6693 cut-off events. For 441/441 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 32673 event pairs, 1024 based on Foata normal form. 0/6693 useless extension candidates. Maximal degree in co-relation 13978. Up to 6432 conditions per place. [2022-11-25 18:17:03,873 INFO L137 encePairwiseOnDemand]: 281/286 looper letters, 39 selfloop transitions, 4 changer transitions 0/46 dead transitions. [2022-11-25 18:17:03,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 46 transitions, 196 flow [2022-11-25 18:17:03,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:17:03,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 18:17:03,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 728 transitions. [2022-11-25 18:17:03,876 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42424242424242425 [2022-11-25 18:17:03,877 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 728 transitions. [2022-11-25 18:17:03,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 728 transitions. [2022-11-25 18:17:03,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:03,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 728 transitions. [2022-11-25 18:17:03,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 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 18:17:03,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 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 18:17:03,886 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 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 18:17:03,887 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 70 flow. Second operand 6 states and 728 transitions. [2022-11-25 18:17:03,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 46 transitions, 196 flow [2022-11-25 18:17:03,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 46 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:17:03,890 INFO L231 Difference]: Finished difference. Result has 43 places, 28 transitions, 72 flow [2022-11-25 18:17:03,890 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=72, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2022-11-25 18:17:03,893 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -9 predicate places. [2022-11-25 18:17:03,894 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 72 flow [2022-11-25 18:17:03,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 18:17:03,895 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:03,895 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:17:03,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:17:03,896 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:03,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:03,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1309711237, now seen corresponding path program 1 times [2022-11-25 18:17:03,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:17:03,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718386337] [2022-11-25 18:17:03,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:03,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:17:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:04,162 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 18:17:04,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:17:04,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718386337] [2022-11-25 18:17:04,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718386337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:04,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:04,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:17:04,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005797868] [2022-11-25 18:17:04,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:04,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:17:04,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:17:04,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:17:04,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:17:04,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-11-25 18:17:04,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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 18:17:04,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:04,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-11-25 18:17:04,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:05,668 INFO L130 PetriNetUnfolder]: 6835/9590 cut-off events. [2022-11-25 18:17:05,668 INFO L131 PetriNetUnfolder]: For 100/100 co-relation queries the response was YES. [2022-11-25 18:17:05,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19278 conditions, 9590 events. 6835/9590 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 50732 event pairs, 2481 based on Foata normal form. 400/9986 useless extension candidates. Maximal degree in co-relation 19274. Up to 7711 conditions per place. [2022-11-25 18:17:05,737 INFO L137 encePairwiseOnDemand]: 281/286 looper letters, 41 selfloop transitions, 3 changer transitions 25/71 dead transitions. [2022-11-25 18:17:05,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 71 transitions, 308 flow [2022-11-25 18:17:05,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:17:05,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:17:05,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 716 transitions. [2022-11-25 18:17:05,740 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5006993006993007 [2022-11-25 18:17:05,740 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 716 transitions. [2022-11-25 18:17:05,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 716 transitions. [2022-11-25 18:17:05,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:05,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 716 transitions. [2022-11-25 18:17:05,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 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 18:17:05,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 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 18:17:05,747 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 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 18:17:05,747 INFO L175 Difference]: Start difference. First operand has 43 places, 28 transitions, 72 flow. Second operand 5 states and 716 transitions. [2022-11-25 18:17:05,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 71 transitions, 308 flow [2022-11-25 18:17:05,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 71 transitions, 296 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-25 18:17:05,749 INFO L231 Difference]: Finished difference. Result has 46 places, 30 transitions, 92 flow [2022-11-25 18:17:05,749 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=92, PETRI_PLACES=46, PETRI_TRANSITIONS=30} [2022-11-25 18:17:05,750 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -6 predicate places. [2022-11-25 18:17:05,750 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 30 transitions, 92 flow [2022-11-25 18:17:05,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 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 18:17:05,751 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:05,751 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:17:05,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:17:05,752 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:05,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:05,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1946306527, now seen corresponding path program 1 times [2022-11-25 18:17:05,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:17:05,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149751480] [2022-11-25 18:17:05,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:05,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:17:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:05,938 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 18:17:05,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:17:05,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149751480] [2022-11-25 18:17:05,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149751480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:05,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:05,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:17:05,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384232484] [2022-11-25 18:17:05,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:05,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:17:05,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:17:05,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:17:05,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:17:05,956 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-25 18:17:05,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 30 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 129.25) internal successors, (517), 4 states have internal predecessors, (517), 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 18:17:05,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:05,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-25 18:17:05,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:06,912 INFO L130 PetriNetUnfolder]: 4484/6449 cut-off events. [2022-11-25 18:17:06,916 INFO L131 PetriNetUnfolder]: For 1180/1181 co-relation queries the response was YES. [2022-11-25 18:17:06,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14801 conditions, 6449 events. 4484/6449 cut-off events. For 1180/1181 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 34730 event pairs, 773 based on Foata normal form. 380/6813 useless extension candidates. Maximal degree in co-relation 14794. Up to 3367 conditions per place. [2022-11-25 18:17:06,972 INFO L137 encePairwiseOnDemand]: 279/286 looper letters, 55 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2022-11-25 18:17:06,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 65 transitions, 305 flow [2022-11-25 18:17:06,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:17:06,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:17:06,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 564 transitions. [2022-11-25 18:17:06,975 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.493006993006993 [2022-11-25 18:17:06,975 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 564 transitions. [2022-11-25 18:17:06,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 564 transitions. [2022-11-25 18:17:06,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:06,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 564 transitions. [2022-11-25 18:17:06,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 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 18:17:06,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 286.0) internal successors, (1430), 5 states have internal predecessors, (1430), 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 18:17:06,981 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 286.0) internal successors, (1430), 5 states have internal predecessors, (1430), 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 18:17:06,981 INFO L175 Difference]: Start difference. First operand has 46 places, 30 transitions, 92 flow. Second operand 4 states and 564 transitions. [2022-11-25 18:17:06,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 65 transitions, 305 flow [2022-11-25 18:17:07,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 65 transitions, 298 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-25 18:17:07,013 INFO L231 Difference]: Finished difference. Result has 47 places, 35 transitions, 133 flow [2022-11-25 18:17:07,013 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=133, PETRI_PLACES=47, PETRI_TRANSITIONS=35} [2022-11-25 18:17:07,014 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -5 predicate places. [2022-11-25 18:17:07,014 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 35 transitions, 133 flow [2022-11-25 18:17:07,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 129.25) internal successors, (517), 4 states have internal predecessors, (517), 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 18:17:07,015 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:07,015 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:17:07,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:17:07,015 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:07,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:07,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1254721478, now seen corresponding path program 1 times [2022-11-25 18:17:07,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:17:07,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770622560] [2022-11-25 18:17:07,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:07,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:17:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:07,217 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 18:17:07,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:17:07,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770622560] [2022-11-25 18:17:07,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770622560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:07,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:07,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:17:07,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974100255] [2022-11-25 18:17:07,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:07,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:17:07,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:17:07,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:17:07,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:17:07,232 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 286 [2022-11-25 18:17:07,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 35 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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 18:17:07,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:07,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 286 [2022-11-25 18:17:07,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:08,617 INFO L130 PetriNetUnfolder]: 7160/10428 cut-off events. [2022-11-25 18:17:08,617 INFO L131 PetriNetUnfolder]: For 5048/5048 co-relation queries the response was YES. [2022-11-25 18:17:08,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28238 conditions, 10428 events. 7160/10428 cut-off events. For 5048/5048 co-relation queries the response was YES. Maximal size of possible extension queue 508. Compared 62231 event pairs, 3065 based on Foata normal form. 276/10679 useless extension candidates. Maximal degree in co-relation 28230. Up to 5641 conditions per place. [2022-11-25 18:17:08,676 INFO L137 encePairwiseOnDemand]: 282/286 looper letters, 52 selfloop transitions, 3 changer transitions 27/84 dead transitions. [2022-11-25 18:17:08,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 84 transitions, 459 flow [2022-11-25 18:17:08,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:17:08,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:17:08,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 718 transitions. [2022-11-25 18:17:08,680 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5020979020979021 [2022-11-25 18:17:08,680 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 718 transitions. [2022-11-25 18:17:08,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 718 transitions. [2022-11-25 18:17:08,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:08,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 718 transitions. [2022-11-25 18:17:08,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.6) internal successors, (718), 5 states have internal predecessors, (718), 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 18:17:08,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 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 18:17:08,685 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 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 18:17:08,686 INFO L175 Difference]: Start difference. First operand has 47 places, 35 transitions, 133 flow. Second operand 5 states and 718 transitions. [2022-11-25 18:17:08,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 84 transitions, 459 flow [2022-11-25 18:17:08,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 84 transitions, 452 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-25 18:17:08,690 INFO L231 Difference]: Finished difference. Result has 53 places, 34 transitions, 140 flow [2022-11-25 18:17:08,691 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=140, PETRI_PLACES=53, PETRI_TRANSITIONS=34} [2022-11-25 18:17:08,691 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2022-11-25 18:17:08,691 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 34 transitions, 140 flow [2022-11-25 18:17:08,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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 18:17:08,692 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:08,692 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:17:08,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:17:08,693 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:08,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:08,693 INFO L85 PathProgramCache]: Analyzing trace with hash 675893741, now seen corresponding path program 1 times [2022-11-25 18:17:08,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:17:08,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392524285] [2022-11-25 18:17:08,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:08,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:17:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:08,884 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 18:17:08,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:17:08,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392524285] [2022-11-25 18:17:08,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392524285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:08,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:08,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:17:08,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556302] [2022-11-25 18:17:08,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:08,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:17:08,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:17:08,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:17:08,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:17:08,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-25 18:17:08,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 34 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 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 18:17:08,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:08,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-25 18:17:08,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:09,710 INFO L130 PetriNetUnfolder]: 3095/4711 cut-off events. [2022-11-25 18:17:09,710 INFO L131 PetriNetUnfolder]: For 2566/2578 co-relation queries the response was YES. [2022-11-25 18:17:09,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12996 conditions, 4711 events. 3095/4711 cut-off events. For 2566/2578 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 26404 event pairs, 496 based on Foata normal form. 345/5035 useless extension candidates. Maximal degree in co-relation 12985. Up to 1612 conditions per place. [2022-11-25 18:17:09,742 INFO L137 encePairwiseOnDemand]: 279/286 looper letters, 68 selfloop transitions, 10 changer transitions 1/83 dead transitions. [2022-11-25 18:17:09,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 83 transitions, 447 flow [2022-11-25 18:17:09,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:17:09,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:17:09,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 707 transitions. [2022-11-25 18:17:09,745 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4944055944055944 [2022-11-25 18:17:09,746 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 707 transitions. [2022-11-25 18:17:09,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 707 transitions. [2022-11-25 18:17:09,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:09,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 707 transitions. [2022-11-25 18:17:09,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.4) internal successors, (707), 5 states have internal predecessors, (707), 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 18:17:09,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 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 18:17:09,752 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 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 18:17:09,752 INFO L175 Difference]: Start difference. First operand has 53 places, 34 transitions, 140 flow. Second operand 5 states and 707 transitions. [2022-11-25 18:17:09,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 83 transitions, 447 flow [2022-11-25 18:17:09,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 83 transitions, 421 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-11-25 18:17:09,764 INFO L231 Difference]: Finished difference. Result has 53 places, 38 transitions, 185 flow [2022-11-25 18:17:09,764 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=185, PETRI_PLACES=53, PETRI_TRANSITIONS=38} [2022-11-25 18:17:09,765 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2022-11-25 18:17:09,765 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 38 transitions, 185 flow [2022-11-25 18:17:09,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 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 18:17:09,766 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:09,766 INFO L209 CegarLoopForPetriNet]: 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 18:17:09,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:17:09,766 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:09,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:09,767 INFO L85 PathProgramCache]: Analyzing trace with hash -823317292, now seen corresponding path program 1 times [2022-11-25 18:17:09,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:17:09,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612802300] [2022-11-25 18:17:09,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:09,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:17:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:10,062 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 18:17:10,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:17:10,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612802300] [2022-11-25 18:17:10,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612802300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:10,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:10,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:17:10,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775232974] [2022-11-25 18:17:10,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:10,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:17:10,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:17:10,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:17:10,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:17:10,077 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-25 18:17:10,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 38 transitions, 185 flow. Second operand has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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 18:17:10,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:10,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-25 18:17:10,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:10,704 INFO L130 PetriNetUnfolder]: 1830/2843 cut-off events. [2022-11-25 18:17:10,705 INFO L131 PetriNetUnfolder]: For 2768/2770 co-relation queries the response was YES. [2022-11-25 18:17:10,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8799 conditions, 2843 events. 1830/2843 cut-off events. For 2768/2770 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 15035 event pairs, 465 based on Foata normal form. 133/2955 useless extension candidates. Maximal degree in co-relation 8789. Up to 975 conditions per place. [2022-11-25 18:17:10,720 INFO L137 encePairwiseOnDemand]: 279/286 looper letters, 78 selfloop transitions, 14 changer transitions 1/97 dead transitions. [2022-11-25 18:17:10,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 97 transitions, 552 flow [2022-11-25 18:17:10,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:17:10,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 18:17:10,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 848 transitions. [2022-11-25 18:17:10,725 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49417249417249415 [2022-11-25 18:17:10,725 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 848 transitions. [2022-11-25 18:17:10,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 848 transitions. [2022-11-25 18:17:10,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:10,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 848 transitions. [2022-11-25 18:17:10,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 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 18:17:10,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 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 18:17:10,733 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 286.0) internal successors, (2002), 7 states have internal predecessors, (2002), 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 18:17:10,733 INFO L175 Difference]: Start difference. First operand has 53 places, 38 transitions, 185 flow. Second operand 6 states and 848 transitions. [2022-11-25 18:17:10,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 97 transitions, 552 flow [2022-11-25 18:17:10,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 97 transitions, 522 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-11-25 18:17:10,774 INFO L231 Difference]: Finished difference. Result has 56 places, 42 transitions, 235 flow [2022-11-25 18:17:10,775 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=235, PETRI_PLACES=56, PETRI_TRANSITIONS=42} [2022-11-25 18:17:10,775 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 4 predicate places. [2022-11-25 18:17:10,776 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 42 transitions, 235 flow [2022-11-25 18:17:10,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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 18:17:10,776 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:10,777 INFO L209 CegarLoopForPetriNet]: 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] [2022-11-25 18:17:10,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:17:10,777 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:10,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:10,778 INFO L85 PathProgramCache]: Analyzing trace with hash -468743698, now seen corresponding path program 1 times [2022-11-25 18:17:10,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:17:10,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456137996] [2022-11-25 18:17:10,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:10,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:17:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:17:11,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:17:11,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456137996] [2022-11-25 18:17:11,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456137996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:11,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:11,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:17:11,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860291386] [2022-11-25 18:17:11,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:11,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:17:11,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:17:11,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:17:11,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:17:11,182 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-25 18:17:11,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 42 transitions, 235 flow. Second operand has 7 states, 7 states have (on average 129.0) internal successors, (903), 7 states have internal predecessors, (903), 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 18:17:11,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:11,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-25 18:17:11,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:11,805 INFO L130 PetriNetUnfolder]: 1564/2390 cut-off events. [2022-11-25 18:17:11,806 INFO L131 PetriNetUnfolder]: For 2533/2534 co-relation queries the response was YES. [2022-11-25 18:17:11,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7539 conditions, 2390 events. 1564/2390 cut-off events. For 2533/2534 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 12284 event pairs, 462 based on Foata normal form. 26/2395 useless extension candidates. Maximal degree in co-relation 7528. Up to 975 conditions per place. [2022-11-25 18:17:11,819 INFO L137 encePairwiseOnDemand]: 279/286 looper letters, 57 selfloop transitions, 18 changer transitions 6/84 dead transitions. [2022-11-25 18:17:11,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 84 transitions, 508 flow [2022-11-25 18:17:11,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:17:11,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 18:17:11,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 961 transitions. [2022-11-25 18:17:11,824 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48001998001998003 [2022-11-25 18:17:11,824 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 961 transitions. [2022-11-25 18:17:11,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 961 transitions. [2022-11-25 18:17:11,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:11,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 961 transitions. [2022-11-25 18:17:11,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 137.28571428571428) internal successors, (961), 7 states have internal predecessors, (961), 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 18:17:11,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 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 18:17:11,834 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 286.0) internal successors, (2288), 8 states have internal predecessors, (2288), 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 18:17:11,834 INFO L175 Difference]: Start difference. First operand has 56 places, 42 transitions, 235 flow. Second operand 7 states and 961 transitions. [2022-11-25 18:17:11,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 84 transitions, 508 flow [2022-11-25 18:17:11,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 84 transitions, 456 flow, removed 12 selfloop flow, removed 6 redundant places. [2022-11-25 18:17:11,885 INFO L231 Difference]: Finished difference. Result has 58 places, 40 transitions, 229 flow [2022-11-25 18:17:11,885 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=229, PETRI_PLACES=58, PETRI_TRANSITIONS=40} [2022-11-25 18:17:11,886 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 6 predicate places. [2022-11-25 18:17:11,886 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 40 transitions, 229 flow [2022-11-25 18:17:11,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 129.0) internal successors, (903), 7 states have internal predecessors, (903), 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 18:17:11,887 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:11,887 INFO L209 CegarLoopForPetriNet]: 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, 1] [2022-11-25 18:17:11,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:17:11,888 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:11,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:11,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1342040365, now seen corresponding path program 1 times [2022-11-25 18:17:11,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:17:11,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920414351] [2022-11-25 18:17:11,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:11,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:17:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:13,364 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 18:17:13,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:17:13,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920414351] [2022-11-25 18:17:13,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920414351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:13,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:13,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:17:13,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017846902] [2022-11-25 18:17:13,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:13,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:17:13,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:17:13,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:17:13,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:17:13,450 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 286 [2022-11-25 18:17:13,451 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 40 transitions, 229 flow. Second operand has 9 states, 9 states have (on average 128.77777777777777) internal successors, (1159), 9 states have internal predecessors, (1159), 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 18:17:13,452 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:13,452 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 286 [2022-11-25 18:17:13,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:13,957 INFO L130 PetriNetUnfolder]: 928/1466 cut-off events. [2022-11-25 18:17:13,958 INFO L131 PetriNetUnfolder]: For 1814/1814 co-relation queries the response was YES. [2022-11-25 18:17:13,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4733 conditions, 1466 events. 928/1466 cut-off events. For 1814/1814 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7143 event pairs, 52 based on Foata normal form. 1/1466 useless extension candidates. Maximal degree in co-relation 4722. Up to 773 conditions per place. [2022-11-25 18:17:13,964 INFO L137 encePairwiseOnDemand]: 279/286 looper letters, 62 selfloop transitions, 4 changer transitions 32/101 dead transitions. [2022-11-25 18:17:13,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 101 transitions, 771 flow [2022-11-25 18:17:13,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:17:13,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 18:17:13,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1075 transitions. [2022-11-25 18:17:13,970 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46984265734265734 [2022-11-25 18:17:13,970 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1075 transitions. [2022-11-25 18:17:13,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1075 transitions. [2022-11-25 18:17:13,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:13,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1075 transitions. [2022-11-25 18:17:13,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 134.375) internal successors, (1075), 8 states have internal predecessors, (1075), 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 18:17:13,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 286.0) internal successors, (2574), 9 states have internal predecessors, (2574), 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 18:17:13,978 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 286.0) internal successors, (2574), 9 states have internal predecessors, (2574), 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 18:17:13,978 INFO L175 Difference]: Start difference. First operand has 58 places, 40 transitions, 229 flow. Second operand 8 states and 1075 transitions. [2022-11-25 18:17:13,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 101 transitions, 771 flow [2022-11-25 18:17:13,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 101 transitions, 513 flow, removed 36 selfloop flow, removed 14 redundant places. [2022-11-25 18:17:13,996 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 139 flow [2022-11-25 18:17:13,996 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=139, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2022-11-25 18:17:13,997 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2022-11-25 18:17:13,997 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 139 flow [2022-11-25 18:17:13,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 128.77777777777777) internal successors, (1159), 9 states have internal predecessors, (1159), 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 18:17:13,998 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:13,998 INFO L209 CegarLoopForPetriNet]: 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, 1] [2022-11-25 18:17:13,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 18:17:13,998 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:13,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:13,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1506219411, now seen corresponding path program 2 times [2022-11-25 18:17:13,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:17:13,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344079601] [2022-11-25 18:17:13,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:13,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:17:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:14,277 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 18:17:14,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:17:14,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344079601] [2022-11-25 18:17:14,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344079601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:14,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:14,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:17:14,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896370799] [2022-11-25 18:17:14,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:14,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:17:14,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:17:14,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:17:14,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:17:14,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 286 [2022-11-25 18:17:14,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 133.2) internal successors, (666), 5 states have internal predecessors, (666), 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 18:17:14,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:14,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 286 [2022-11-25 18:17:14,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:14,696 INFO L130 PetriNetUnfolder]: 1189/1848 cut-off events. [2022-11-25 18:17:14,696 INFO L131 PetriNetUnfolder]: For 1030/1031 co-relation queries the response was YES. [2022-11-25 18:17:14,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4755 conditions, 1848 events. 1189/1848 cut-off events. For 1030/1031 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 8903 event pairs, 429 based on Foata normal form. 1/1844 useless extension candidates. Maximal degree in co-relation 4748. Up to 740 conditions per place. [2022-11-25 18:17:14,704 INFO L137 encePairwiseOnDemand]: 282/286 looper letters, 45 selfloop transitions, 1 changer transitions 34/82 dead transitions. [2022-11-25 18:17:14,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 82 transitions, 452 flow [2022-11-25 18:17:14,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:17:14,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:17:14,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 691 transitions. [2022-11-25 18:17:14,707 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48321678321678324 [2022-11-25 18:17:14,707 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 691 transitions. [2022-11-25 18:17:14,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 691 transitions. [2022-11-25 18:17:14,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:14,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 691 transitions. [2022-11-25 18:17:14,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.2) internal successors, (691), 5 states have internal predecessors, (691), 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 18:17:14,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 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 18:17:14,713 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 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 18:17:14,713 INFO L175 Difference]: Start difference. First operand has 54 places, 40 transitions, 139 flow. Second operand 5 states and 691 transitions. [2022-11-25 18:17:14,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 82 transitions, 452 flow [2022-11-25 18:17:14,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 82 transitions, 428 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-11-25 18:17:14,715 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 136 flow [2022-11-25 18:17:14,715 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2022-11-25 18:17:14,716 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 0 predicate places. [2022-11-25 18:17:14,716 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 136 flow [2022-11-25 18:17:14,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.2) internal successors, (666), 5 states have internal predecessors, (666), 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 18:17:14,717 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:14,717 INFO L209 CegarLoopForPetriNet]: 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, 1] [2022-11-25 18:17:14,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 18:17:14,717 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:14,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:14,718 INFO L85 PathProgramCache]: Analyzing trace with hash 377646929, now seen corresponding path program 3 times [2022-11-25 18:17:14,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:17:14,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071583834] [2022-11-25 18:17:14,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:14,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:17:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:17:14,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:17:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:17:14,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:17:14,908 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:17:14,909 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-25 18:17:14,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-25 18:17:14,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-25 18:17:14,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-25 18:17:14,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-25 18:17:14,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-25 18:17:14,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-25 18:17:14,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-25 18:17:14,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-25 18:17:14,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-25 18:17:14,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-25 18:17:14,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-25 18:17:14,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-25 18:17:14,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-25 18:17:14,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-25 18:17:14,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-25 18:17:14,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 18:17:14,914 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:17:14,920 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 18:17:14,920 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:17:14,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:17:14 BasicIcfg [2022-11-25 18:17:14,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:17:14,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:17:14,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:17:15,000 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:17:15,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:16:46" (3/4) ... [2022-11-25 18:17:15,003 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:17:15,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:17:15,004 INFO L158 Benchmark]: Toolchain (without parser) took 30899.21ms. Allocated memory was 199.2MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 155.3MB in the beginning and 790.9MB in the end (delta: -635.6MB). Peak memory consumption was 803.1MB. Max. memory is 16.1GB. [2022-11-25 18:17:15,004 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 107.0MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:17:15,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1047.48ms. Allocated memory is still 199.2MB. Free memory was 154.5MB in the beginning and 127.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 18:17:15,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.70ms. Allocated memory is still 199.2MB. Free memory was 127.2MB in the beginning and 124.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:17:15,005 INFO L158 Benchmark]: Boogie Preprocessor took 41.70ms. Allocated memory is still 199.2MB. Free memory was 124.3MB in the beginning and 122.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:17:15,005 INFO L158 Benchmark]: RCFGBuilder took 1329.49ms. Allocated memory is still 199.2MB. Free memory was 122.2MB in the beginning and 83.2MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-25 18:17:15,006 INFO L158 Benchmark]: TraceAbstraction took 28369.10ms. Allocated memory was 199.2MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 82.3MB in the beginning and 790.9MB in the end (delta: -708.6MB). Peak memory consumption was 729.7MB. Max. memory is 16.1GB. [2022-11-25 18:17:15,006 INFO L158 Benchmark]: Witness Printer took 4.03ms. Allocated memory is still 1.6GB. Free memory is still 790.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:17:15,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 107.0MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1047.48ms. Allocated memory is still 199.2MB. Free memory was 154.5MB in the beginning and 127.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.70ms. Allocated memory is still 199.2MB. Free memory was 127.2MB in the beginning and 124.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.70ms. Allocated memory is still 199.2MB. Free memory was 124.3MB in the beginning and 122.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1329.49ms. Allocated memory is still 199.2MB. Free memory was 122.2MB in the beginning and 83.2MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 28369.10ms. Allocated memory was 199.2MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 82.3MB in the beginning and 790.9MB in the end (delta: -708.6MB). Peak memory consumption was 729.7MB. Max. memory is 16.1GB. * Witness Printer took 4.03ms. Allocated memory is still 1.6GB. Free memory is still 790.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1s, 155 PlacesBefore, 52 PlacesAfterwards, 144 TransitionsBefore, 40 TransitionsAfterwards, 3644 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 138 TotalNumberOfCompositions, 9972 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4985, independent: 4771, independent conditional: 0, independent unconditional: 4771, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2677, independent: 2603, independent conditional: 0, independent unconditional: 2603, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2677, independent: 2577, independent conditional: 0, independent unconditional: 2577, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 100, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 792, independent: 59, independent conditional: 0, independent unconditional: 59, dependent: 732, dependent conditional: 0, dependent unconditional: 732, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4985, independent: 2168, independent conditional: 0, independent unconditional: 2168, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 2677, unknown conditional: 0, unknown unconditional: 2677] , Statistics on independence cache: Total cache size (in pairs): 395, Positive cache size: 364, Positive conditional cache size: 0, Positive unconditional cache size: 364, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 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_p1_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int a = 0; [L719] 0 _Bool a$flush_delayed; [L720] 0 int a$mem_tmp; [L721] 0 _Bool a$r_buff0_thd0; [L722] 0 _Bool a$r_buff0_thd1; [L723] 0 _Bool a$r_buff0_thd2; [L724] 0 _Bool a$r_buff0_thd3; [L725] 0 _Bool a$r_buff0_thd4; [L726] 0 _Bool a$r_buff1_thd0; [L727] 0 _Bool a$r_buff1_thd1; [L728] 0 _Bool a$r_buff1_thd2; [L729] 0 _Bool a$r_buff1_thd3; [L730] 0 _Bool a$r_buff1_thd4; [L731] 0 _Bool a$read_delayed; [L732] 0 int *a$read_delayed_var; [L733] 0 int a$w_buff0; [L734] 0 _Bool a$w_buff0_used; [L735] 0 int a$w_buff1; [L736] 0 _Bool a$w_buff1_used; [L737] 0 _Bool main$tmp_guard0; [L738] 0 _Bool main$tmp_guard1; [L740] 0 int x = 0; [L742] 0 int y = 0; [L744] 0 int z = 0; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L861] 0 pthread_t t1353; [L862] FCALL, FORK 0 pthread_create(&t1353, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1353, ((void *)0), P0, ((void *)0))=-2, t1353={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L863] 0 pthread_t t1354; [L750] 1 a$w_buff1 = a$w_buff0 [L751] 1 a$w_buff0 = 1 [L752] 1 a$w_buff1_used = a$w_buff0_used [L753] 1 a$w_buff0_used = (_Bool)1 [L754] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L754] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L755] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L756] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L757] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L758] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L759] 1 a$r_buff1_thd4 = a$r_buff0_thd4 [L760] 1 a$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L763] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=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, z=0] [L864] FCALL, FORK 0 pthread_create(&t1354, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1354, ((void *)0), P1, ((void *)0))=-1, t1353={5:0}, t1354={6:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L865] 0 pthread_t t1355; [L780] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L783] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L786] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L787] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L788] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L789] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L790] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L866] FCALL, FORK 0 pthread_create(&t1355, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1355, ((void *)0), P2, ((void *)0))=0, t1353={5:0}, t1354={6:0}, t1355={7:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L867] 0 pthread_t t1356; [L800] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=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=2, y=1, z=0] [L868] FCALL, FORK 0 pthread_create(&t1356, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1356, ((void *)0), P3, ((void *)0))=1, t1353={5:0}, t1354={6:0}, t1355={7:0}, t1356={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L803] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=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=2, y=1, z=0] [L806] 3 a = a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L807] 3 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L808] 3 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L809] 3 a$r_buff0_thd3 = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L810] 3 a$r_buff1_thd3 = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=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=2, y=1, z=0] [L793] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L795] 2 return 0; [L813] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L815] 3 return 0; [L820] 4 z = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=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=2, y=1, z=1] [L823] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L824] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L825] 4 a$flush_delayed = weak$$choice2 [L826] 4 a$mem_tmp = a [L827] 4 a = !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff1) [L828] 4 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff0)) [L829] 4 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff1 : a$w_buff1)) [L830] 4 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used)) [L831] 4 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L832] 4 a$r_buff0_thd4 = weak$$choice2 ? a$r_buff0_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff0_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4)) [L833] 4 a$r_buff1_thd4 = weak$$choice2 ? a$r_buff1_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff1_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L834] 4 __unbuffered_p3_EAX = a [L835] 4 a = a$flush_delayed ? a$mem_tmp : a [L836] 4 a$flush_delayed = (_Bool)0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1] [L766] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L767] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L768] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L769] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L770] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1] [L839] 4 a = a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a) [L840] 4 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used [L841] 4 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$w_buff1_used [L842] 4 a$r_buff0_thd4 = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4 [L843] 4 a$r_buff1_thd4 = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1] [L846] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L848] 4 return 0; [L773] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L775] 1 return 0; [L870] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1353={5:0}, t1354={6:0}, t1355={7:0}, t1356={3:0}, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1] [L872] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L872] RET 0 assume_abort_if_not(main$tmp_guard0) [L874] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L875] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L876] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L877] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L878] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1353={5:0}, t1354={6:0}, t1355={7:0}, t1356={3:0}, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1] [L881] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) [L883] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1] - 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: 859]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 862]: 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: 868]: 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: 864]: 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: 866]: 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. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 28.0s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 833 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 734 mSDsluCounter, 216 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 173 mSDsCounter, 94 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1653 IncrementalHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 94 mSolverCounterUnsat, 43 mSDtfsCounter, 1653 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235occurred in iteration=8, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 1082 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 18:17:15,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76dbb78f4fe406633111c7d7e2c1e8bd933a1f67e6e1cf5d4cbd1b0379bfe086 --- 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 18:17:17,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:17:17,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:17:17,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:17:17,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:17:17,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:17:17,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:17:17,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:17:17,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:17:17,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:17:17,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:17:17,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:17:17,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:17:17,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:17:17,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:17:17,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:17:17,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:17:17,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:17:17,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:17:17,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:17:17,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:17:17,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:17:17,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:17:17,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:17:17,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:17:17,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:17:17,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:17:17,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:17:17,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:17:17,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:17:17,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:17:17,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:17:17,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:17:17,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:17:17,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:17:17,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:17:17,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:17:17,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:17:17,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:17:17,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:17:17,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:17:17,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-25 18:17:17,694 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:17:17,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:17:17,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:17:17,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:17:17,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:17:17,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:17:17,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:17:17,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:17:17,697 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:17:17,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:17:17,698 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:17:17,698 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:17:17,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:17:17,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:17:17,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:17:17,700 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 18:17:17,700 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 18:17:17,700 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 18:17:17,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:17:17,701 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:17:17,701 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 18:17:17,701 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 18:17:17,702 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:17:17,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:17:17,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:17:17,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:17:17,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:17:17,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:17:17,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:17:17,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:17:17,706 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 18:17:17,706 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 18:17:17,706 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:17:17,707 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:17:17,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:17:17,707 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 18:17:17,708 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R 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 -> Automizer 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 -> 76dbb78f4fe406633111c7d7e2c1e8bd933a1f67e6e1cf5d4cbd1b0379bfe086 [2022-11-25 18:17:18,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:17:18,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:17:18,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:17:18,189 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:17:18,190 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:17:18,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-25 18:17:21,313 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:17:21,637 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:17:21,638 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-25 18:17:21,654 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/data/46850eb51/368e800d950a4bef923608273d339794/FLAGa24624ca9 [2022-11-25 18:17:21,673 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/data/46850eb51/368e800d950a4bef923608273d339794 [2022-11-25 18:17:21,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:17:21,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:17:21,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:17:21,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:17:21,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:17:21,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:17:21" (1/1) ... [2022-11-25 18:17:21,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b58692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:21, skipping insertion in model container [2022-11-25 18:17:21,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:17:21" (1/1) ... [2022-11-25 18:17:21,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:17:21,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:17:21,935 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_5b8a7a1e-7731-479d-9366-58c30ae60d4e/sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i[979,992] [2022-11-25 18:17:22,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,225 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,235 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,236 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,237 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,238 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,247 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,248 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,253 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,254 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,255 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,256 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,262 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,263 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,268 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,269 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,298 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:17:22,338 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:17:22,355 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_5b8a7a1e-7731-479d-9366-58c30ae60d4e/sv-benchmarks/c/pthread-wmm/mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i[979,992] [2022-11-25 18:17:22,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,425 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,471 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:17:22,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:17:22,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:17:22,517 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:17:22,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:22 WrapperNode [2022-11-25 18:17:22,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:17:22,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:17:22,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:17:22,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:17:22,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:22" (1/1) ... [2022-11-25 18:17:22,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:22" (1/1) ... [2022-11-25 18:17:22,627 INFO L138 Inliner]: procedures = 180, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-11-25 18:17:22,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:17:22,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:17:22,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:17:22,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:17:22,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:22" (1/1) ... [2022-11-25 18:17:22,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:22" (1/1) ... [2022-11-25 18:17:22,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:22" (1/1) ... [2022-11-25 18:17:22,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:22" (1/1) ... [2022-11-25 18:17:22,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:22" (1/1) ... [2022-11-25 18:17:22,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:22" (1/1) ... [2022-11-25 18:17:22,698 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:22" (1/1) ... [2022-11-25 18:17:22,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:22" (1/1) ... [2022-11-25 18:17:22,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:17:22,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:17:22,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:17:22,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:17:22,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:22" (1/1) ... [2022-11-25 18:17:22,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:17:22,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:17:22,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:17:22,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:17:22,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 18:17:22,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:17:22,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:17:22,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:17:22,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 18:17:22,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 18:17:22,831 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 18:17:22,831 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 18:17:22,831 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 18:17:22,831 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 18:17:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 18:17:22,832 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 18:17:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-25 18:17:22,832 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-25 18:17:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 18:17:22,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:17:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:17:22,836 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 18:17:23,099 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:17:23,102 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:17:23,577 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:17:23,713 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:17:23,713 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:17:23,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:17:23 BoogieIcfgContainer [2022-11-25 18:17:23,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:17:23,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:17:23,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:17:23,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:17:23,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:17:21" (1/3) ... [2022-11-25 18:17:23,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42cdedf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:17:23, skipping insertion in model container [2022-11-25 18:17:23,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:17:22" (2/3) ... [2022-11-25 18:17:23,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42cdedf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:17:23, skipping insertion in model container [2022-11-25 18:17:23,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:17:23" (3/3) ... [2022-11-25 18:17:23,725 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_power.oepc_power.opt_pso.oepc_rmo.oepc.i [2022-11-25 18:17:23,745 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:17:23,745 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-11-25 18:17:23,745 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:17:23,836 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 18:17:23,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 149 transitions, 318 flow [2022-11-25 18:17:23,991 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2022-11-25 18:17:23,992 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:17:23,999 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 102 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 18:17:24,000 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 149 transitions, 318 flow [2022-11-25 18:17:24,011 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 145 transitions, 302 flow [2022-11-25 18:17:24,038 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:17:24,071 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 145 transitions, 302 flow [2022-11-25 18:17:24,079 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 145 transitions, 302 flow [2022-11-25 18:17:24,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 145 transitions, 302 flow [2022-11-25 18:17:24,142 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2022-11-25 18:17:24,143 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:17:24,145 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 102 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 18:17:24,149 INFO L119 LiptonReduction]: Number of co-enabled transitions 3644 [2022-11-25 18:17:35,579 INFO L134 LiptonReduction]: Checked pairs total: 10044 [2022-11-25 18:17:35,579 INFO L136 LiptonReduction]: Total number of compositions: 135 [2022-11-25 18:17:35,595 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:17:35,601 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=PETRI_NET, 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;@23915ab4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:17:35,602 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-25 18:17:35,605 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-11-25 18:17:35,605 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:17:35,605 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:35,606 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 18:17:35,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:35,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:35,612 INFO L85 PathProgramCache]: Analyzing trace with hash 618, now seen corresponding path program 1 times [2022-11-25 18:17:35,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:17:35,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802194380] [2022-11-25 18:17:35,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:35,627 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 18:17:35,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:17:35,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:35,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:35,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 18:17:35,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:17:35,754 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 18:17:35,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:17:35,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:17:35,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802194380] [2022-11-25 18:17:35,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802194380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:35,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:35,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 18:17:35,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724737927] [2022-11-25 18:17:35,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:35,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:17:35,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:17:35,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:17:35,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:17:35,800 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 284 [2022-11-25 18:17:35,805 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 92 flow. Second operand has 2 states, 2 states have (on average 134.5) internal successors, (269), 2 states have internal predecessors, (269), 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 18:17:35,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:35,806 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 284 [2022-11-25 18:17:35,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:38,154 INFO L130 PetriNetUnfolder]: 8719/11755 cut-off events. [2022-11-25 18:17:38,155 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2022-11-25 18:17:38,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23703 conditions, 11755 events. 8719/11755 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 531. Compared 59522 event pairs, 8719 based on Foata normal form. 0/10333 useless extension candidates. Maximal degree in co-relation 23691. Up to 11731 conditions per place. [2022-11-25 18:17:38,273 INFO L137 encePairwiseOnDemand]: 275/284 looper letters, 28 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2022-11-25 18:17:38,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 130 flow [2022-11-25 18:17:38,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:17:38,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:17:38,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 305 transitions. [2022-11-25 18:17:38,298 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5369718309859155 [2022-11-25 18:17:38,299 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 305 transitions. [2022-11-25 18:17:38,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 305 transitions. [2022-11-25 18:17:38,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:38,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 305 transitions. [2022-11-25 18:17:38,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 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 18:17:38,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 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 18:17:38,329 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 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 18:17:38,332 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 92 flow. Second operand 2 states and 305 transitions. [2022-11-25 18:17:38,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 130 flow [2022-11-25 18:17:38,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 31 transitions, 126 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-25 18:17:38,346 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 70 flow [2022-11-25 18:17:38,349 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2022-11-25 18:17:38,353 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2022-11-25 18:17:38,354 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 70 flow [2022-11-25 18:17:38,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 134.5) internal successors, (269), 2 states have internal predecessors, (269), 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 18:17:38,355 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:38,355 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 18:17:38,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:38,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:38,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:38,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:38,572 INFO L85 PathProgramCache]: Analyzing trace with hash 607425, now seen corresponding path program 1 times [2022-11-25 18:17:38,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:17:38,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371869398] [2022-11-25 18:17:38,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:38,573 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 18:17:38,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:17:38,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:38,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:38,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 18:17:38,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:17:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:17:38,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:17:38,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:17:38,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371869398] [2022-11-25 18:17:38,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371869398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:38,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:38,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:17:38,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191989764] [2022-11-25 18:17:38,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:38,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:17:38,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:17:38,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:17:38,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:17:38,754 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 284 [2022-11-25 18:17:38,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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 18:17:38,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:38,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 284 [2022-11-25 18:17:38,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:40,417 INFO L130 PetriNetUnfolder]: 6855/9871 cut-off events. [2022-11-25 18:17:40,418 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:17:40,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19308 conditions, 9871 events. 6855/9871 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 59146 event pairs, 1263 based on Foata normal form. 0/9227 useless extension candidates. Maximal degree in co-relation 19305. Up to 7399 conditions per place. [2022-11-25 18:17:40,493 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 45 selfloop transitions, 2 changer transitions 2/52 dead transitions. [2022-11-25 18:17:40,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 216 flow [2022-11-25 18:17:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:17:40,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:17:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2022-11-25 18:17:40,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5269953051643192 [2022-11-25 18:17:40,498 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions. [2022-11-25 18:17:40,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions. [2022-11-25 18:17:40,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:40,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions. [2022-11-25 18:17:40,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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 18:17:40,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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 18:17:40,511 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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 18:17:40,511 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 70 flow. Second operand 3 states and 449 transitions. [2022-11-25 18:17:40,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 216 flow [2022-11-25 18:17:40,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 52 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:17:40,514 INFO L231 Difference]: Finished difference. Result has 42 places, 29 transitions, 70 flow [2022-11-25 18:17:40,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=42, PETRI_TRANSITIONS=29} [2022-11-25 18:17:40,515 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -10 predicate places. [2022-11-25 18:17:40,517 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 70 flow [2022-11-25 18:17:40,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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 18:17:40,519 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:40,519 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:17:40,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:40,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:40,732 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:40,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:40,733 INFO L85 PathProgramCache]: Analyzing trace with hash -589864708, now seen corresponding path program 1 times [2022-11-25 18:17:40,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:17:40,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023837191] [2022-11-25 18:17:40,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:40,734 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 18:17:40,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:17:40,737 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:40,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:40,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 18:17:40,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:17:41,066 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 18:17:41,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:17:41,067 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:17:41,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023837191] [2022-11-25 18:17:41,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023837191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:41,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:41,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:17:41,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006389613] [2022-11-25 18:17:41,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:41,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:17:41,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:17:41,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:17:41,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:17:41,116 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 284 [2022-11-25 18:17:41,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 18:17:41,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:41,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 284 [2022-11-25 18:17:41,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:42,519 INFO L130 PetriNetUnfolder]: 4483/6369 cut-off events. [2022-11-25 18:17:42,520 INFO L131 PetriNetUnfolder]: For 421/421 co-relation queries the response was YES. [2022-11-25 18:17:42,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13318 conditions, 6369 events. 4483/6369 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 33680 event pairs, 655 based on Foata normal form. 320/6464 useless extension candidates. Maximal degree in co-relation 13314. Up to 3781 conditions per place. [2022-11-25 18:17:42,574 INFO L137 encePairwiseOnDemand]: 277/284 looper letters, 52 selfloop transitions, 6 changer transitions 1/62 dead transitions. [2022-11-25 18:17:42,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 62 transitions, 264 flow [2022-11-25 18:17:42,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:17:42,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:17:42,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 569 transitions. [2022-11-25 18:17:42,578 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5008802816901409 [2022-11-25 18:17:42,579 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 569 transitions. [2022-11-25 18:17:42,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 569 transitions. [2022-11-25 18:17:42,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:42,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 569 transitions. [2022-11-25 18:17:42,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 142.25) internal successors, (569), 4 states have internal predecessors, (569), 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 18:17:42,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 284.0) internal successors, (1420), 5 states have internal predecessors, (1420), 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 18:17:42,587 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 284.0) internal successors, (1420), 5 states have internal predecessors, (1420), 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 18:17:42,587 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 70 flow. Second operand 4 states and 569 transitions. [2022-11-25 18:17:42,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 62 transitions, 264 flow [2022-11-25 18:17:42,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 62 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:17:42,590 INFO L231 Difference]: Finished difference. Result has 44 places, 33 transitions, 108 flow [2022-11-25 18:17:42,591 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2022-11-25 18:17:42,592 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -8 predicate places. [2022-11-25 18:17:42,592 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 108 flow [2022-11-25 18:17:42,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 18:17:42,593 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:42,593 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:17:42,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:42,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:42,808 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:42,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:42,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1093737564, now seen corresponding path program 1 times [2022-11-25 18:17:42,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:17:42,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177215295] [2022-11-25 18:17:42,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:42,810 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 18:17:42,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:17:42,812 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:42,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:42,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 18:17:42,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:17:43,058 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 18:17:43,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:17:43,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:17:43,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177215295] [2022-11-25 18:17:43,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177215295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:43,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:43,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:17:43,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801685125] [2022-11-25 18:17:43,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:43,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:17:43,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:17:43,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:17:43,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:17:43,086 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 284 [2022-11-25 18:17:43,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 33 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 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 18:17:43,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:43,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 284 [2022-11-25 18:17:43,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:43,903 INFO L130 PetriNetUnfolder]: 2161/3264 cut-off events. [2022-11-25 18:17:43,903 INFO L131 PetriNetUnfolder]: For 973/973 co-relation queries the response was YES. [2022-11-25 18:17:43,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8271 conditions, 3264 events. 2161/3264 cut-off events. For 973/973 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 16649 event pairs, 328 based on Foata normal form. 212/3386 useless extension candidates. Maximal degree in co-relation 8265. Up to 1081 conditions per place. [2022-11-25 18:17:43,922 INFO L137 encePairwiseOnDemand]: 277/284 looper letters, 65 selfloop transitions, 10 changer transitions 1/79 dead transitions. [2022-11-25 18:17:43,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 79 transitions, 381 flow [2022-11-25 18:17:43,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:17:43,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:17:43,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 713 transitions. [2022-11-25 18:17:43,925 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.502112676056338 [2022-11-25 18:17:43,925 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 713 transitions. [2022-11-25 18:17:43,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 713 transitions. [2022-11-25 18:17:43,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:43,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 713 transitions. [2022-11-25 18:17:43,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 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 18:17:43,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 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 18:17:43,932 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 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 18:17:43,932 INFO L175 Difference]: Start difference. First operand has 44 places, 33 transitions, 108 flow. Second operand 5 states and 713 transitions. [2022-11-25 18:17:43,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 79 transitions, 381 flow [2022-11-25 18:17:43,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 79 transitions, 370 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-25 18:17:43,941 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 160 flow [2022-11-25 18:17:43,941 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=160, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2022-11-25 18:17:43,943 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -4 predicate places. [2022-11-25 18:17:43,944 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 160 flow [2022-11-25 18:17:43,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 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 18:17:43,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:43,947 INFO L209 CegarLoopForPetriNet]: 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 18:17:43,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-11-25 18:17:44,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:44,159 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:44,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:44,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1850959998, now seen corresponding path program 1 times [2022-11-25 18:17:44,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:17:44,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226595579] [2022-11-25 18:17:44,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:44,161 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 18:17:44,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:17:44,162 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:44,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:44,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 18:17:44,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:17:44,376 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 18:17:44,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:17:44,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:17:44,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226595579] [2022-11-25 18:17:44,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226595579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:44,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:44,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:17:44,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105462159] [2022-11-25 18:17:44,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:44,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:17:44,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:17:44,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:17:44,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:17:44,399 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 284 [2022-11-25 18:17:44,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 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 18:17:44,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:44,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 284 [2022-11-25 18:17:44,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:44,968 INFO L130 PetriNetUnfolder]: 1189/1842 cut-off events. [2022-11-25 18:17:44,968 INFO L131 PetriNetUnfolder]: For 1613/1613 co-relation queries the response was YES. [2022-11-25 18:17:44,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5373 conditions, 1842 events. 1189/1842 cut-off events. For 1613/1613 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 8763 event pairs, 326 based on Foata normal form. 77/1892 useless extension candidates. Maximal degree in co-relation 5366. Up to 630 conditions per place. [2022-11-25 18:17:44,985 INFO L137 encePairwiseOnDemand]: 277/284 looper letters, 76 selfloop transitions, 14 changer transitions 1/94 dead transitions. [2022-11-25 18:17:44,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 94 transitions, 504 flow [2022-11-25 18:17:44,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:17:44,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 18:17:44,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 855 transitions. [2022-11-25 18:17:44,990 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5017605633802817 [2022-11-25 18:17:44,990 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 855 transitions. [2022-11-25 18:17:44,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 855 transitions. [2022-11-25 18:17:44,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:44,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 855 transitions. [2022-11-25 18:17:44,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 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 18:17:44,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 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 18:17:44,999 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 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 18:17:45,000 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 160 flow. Second operand 6 states and 855 transitions. [2022-11-25 18:17:45,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 94 transitions, 504 flow [2022-11-25 18:17:45,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 94 transitions, 474 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-11-25 18:17:45,025 INFO L231 Difference]: Finished difference. Result has 51 places, 41 transitions, 210 flow [2022-11-25 18:17:45,025 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=210, PETRI_PLACES=51, PETRI_TRANSITIONS=41} [2022-11-25 18:17:45,026 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2022-11-25 18:17:45,026 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 41 transitions, 210 flow [2022-11-25 18:17:45,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 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 18:17:45,027 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:45,028 INFO L209 CegarLoopForPetriNet]: 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] [2022-11-25 18:17:45,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:45,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:45,251 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:45,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:45,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1226833033, now seen corresponding path program 1 times [2022-11-25 18:17:45,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:17:45,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520389562] [2022-11-25 18:17:45,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:45,253 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 18:17:45,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:17:45,255 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:45,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:45,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 18:17:45,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:17:45,499 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 18:17:45,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:17:45,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:17:45,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520389562] [2022-11-25 18:17:45,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520389562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:45,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:45,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:17:45,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670267215] [2022-11-25 18:17:45,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:45,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:17:45,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:17:45,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:17:45,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:17:45,523 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 284 [2022-11-25 18:17:45,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 210 flow. Second operand has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 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 18:17:45,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:45,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 284 [2022-11-25 18:17:45,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:46,237 INFO L130 PetriNetUnfolder]: 1011/1536 cut-off events. [2022-11-25 18:17:46,238 INFO L131 PetriNetUnfolder]: For 1470/1470 co-relation queries the response was YES. [2022-11-25 18:17:46,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4578 conditions, 1536 events. 1011/1536 cut-off events. For 1470/1470 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 7156 event pairs, 326 based on Foata normal form. 14/1536 useless extension candidates. Maximal degree in co-relation 4570. Up to 630 conditions per place. [2022-11-25 18:17:46,250 INFO L137 encePairwiseOnDemand]: 277/284 looper letters, 59 selfloop transitions, 18 changer transitions 1/81 dead transitions. [2022-11-25 18:17:46,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 81 transitions, 462 flow [2022-11-25 18:17:46,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:17:46,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 18:17:46,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 969 transitions. [2022-11-25 18:17:46,254 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4874245472837022 [2022-11-25 18:17:46,255 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 969 transitions. [2022-11-25 18:17:46,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 969 transitions. [2022-11-25 18:17:46,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:46,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 969 transitions. [2022-11-25 18:17:46,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.42857142857142) internal successors, (969), 7 states have internal predecessors, (969), 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 18:17:46,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 284.0) internal successors, (2272), 8 states have internal predecessors, (2272), 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 18:17:46,263 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 284.0) internal successors, (2272), 8 states have internal predecessors, (2272), 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 18:17:46,263 INFO L175 Difference]: Start difference. First operand has 51 places, 41 transitions, 210 flow. Second operand 7 states and 969 transitions. [2022-11-25 18:17:46,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 81 transitions, 462 flow [2022-11-25 18:17:46,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 81 transitions, 416 flow, removed 9 selfloop flow, removed 5 redundant places. [2022-11-25 18:17:46,280 INFO L231 Difference]: Finished difference. Result has 54 places, 41 transitions, 220 flow [2022-11-25 18:17:46,280 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=220, PETRI_PLACES=54, PETRI_TRANSITIONS=41} [2022-11-25 18:17:46,281 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2022-11-25 18:17:46,281 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 41 transitions, 220 flow [2022-11-25 18:17:46,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 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 18:17:46,282 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:46,283 INFO L209 CegarLoopForPetriNet]: 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, 1] [2022-11-25 18:17:46,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:46,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:46,497 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:46,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:46,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1974544694, now seen corresponding path program 1 times [2022-11-25 18:17:46,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:17:46,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844762373] [2022-11-25 18:17:46,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:46,498 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 18:17:46,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:17:46,499 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:46,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:46,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 18:17:46,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:17:47,192 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 18:17:47,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:17:47,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:17:47,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844762373] [2022-11-25 18:17:47,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844762373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:47,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:47,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:17:47,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91545571] [2022-11-25 18:17:47,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:47,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 18:17:47,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:17:47,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 18:17:47,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:17:47,325 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 284 [2022-11-25 18:17:47,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 220 flow. Second operand has 9 states, 9 states have (on average 129.77777777777777) internal successors, (1168), 9 states have internal predecessors, (1168), 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 18:17:47,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:47,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 284 [2022-11-25 18:17:47,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:48,125 INFO L130 PetriNetUnfolder]: 1159/1792 cut-off events. [2022-11-25 18:17:48,126 INFO L131 PetriNetUnfolder]: For 1960/1960 co-relation queries the response was YES. [2022-11-25 18:17:48,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5394 conditions, 1792 events. 1159/1792 cut-off events. For 1960/1960 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 8558 event pairs, 166 based on Foata normal form. 0/1787 useless extension candidates. Maximal degree in co-relation 5385. Up to 773 conditions per place. [2022-11-25 18:17:48,139 INFO L137 encePairwiseOnDemand]: 277/284 looper letters, 100 selfloop transitions, 7 changer transitions 0/110 dead transitions. [2022-11-25 18:17:48,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 110 transitions, 818 flow [2022-11-25 18:17:48,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:17:48,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 18:17:48,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1088 transitions. [2022-11-25 18:17:48,144 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4788732394366197 [2022-11-25 18:17:48,144 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1088 transitions. [2022-11-25 18:17:48,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1088 transitions. [2022-11-25 18:17:48,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:48,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1088 transitions. [2022-11-25 18:17:48,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 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 18:17:48,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 284.0) internal successors, (2556), 9 states have internal predecessors, (2556), 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 18:17:48,152 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 284.0) internal successors, (2556), 9 states have internal predecessors, (2556), 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 18:17:48,153 INFO L175 Difference]: Start difference. First operand has 54 places, 41 transitions, 220 flow. Second operand 8 states and 1088 transitions. [2022-11-25 18:17:48,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 110 transitions, 818 flow [2022-11-25 18:17:48,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 110 transitions, 552 flow, removed 34 selfloop flow, removed 11 redundant places. [2022-11-25 18:17:48,169 INFO L231 Difference]: Finished difference. Result has 53 places, 44 transitions, 154 flow [2022-11-25 18:17:48,169 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=154, PETRI_PLACES=53, PETRI_TRANSITIONS=44} [2022-11-25 18:17:48,170 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2022-11-25 18:17:48,170 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 44 transitions, 154 flow [2022-11-25 18:17:48,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 129.77777777777777) internal successors, (1168), 9 states have internal predecessors, (1168), 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 18:17:48,171 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:48,171 INFO L209 CegarLoopForPetriNet]: 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, 1] [2022-11-25 18:17:48,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:48,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:48,384 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:48,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:48,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1488774350, now seen corresponding path program 2 times [2022-11-25 18:17:48,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:17:48,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1443269423] [2022-11-25 18:17:48,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:17:48,386 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 18:17:48,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:17:48,388 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:48,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:48,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 18:17:48,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:17:48,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 18:17:48,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:17:48,646 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 18:17:48,646 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:17:48,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:17:48,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1443269423] [2022-11-25 18:17:48,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1443269423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:48,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:48,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:17:48,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767172995] [2022-11-25 18:17:48,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:48,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:17:48,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:17:48,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:17:48,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:17:48,680 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 284 [2022-11-25 18:17:48,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 44 transitions, 154 flow. Second operand has 5 states, 5 states have (on average 134.2) internal successors, (671), 5 states have internal predecessors, (671), 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 18:17:48,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:48,682 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 284 [2022-11-25 18:17:48,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:49,297 INFO L130 PetriNetUnfolder]: 2053/3276 cut-off events. [2022-11-25 18:17:49,297 INFO L131 PetriNetUnfolder]: For 1400/1400 co-relation queries the response was YES. [2022-11-25 18:17:49,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8167 conditions, 3276 events. 2053/3276 cut-off events. For 1400/1400 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 18571 event pairs, 269 based on Foata normal form. 1/3276 useless extension candidates. Maximal degree in co-relation 8160. Up to 1605 conditions per place. [2022-11-25 18:17:49,319 INFO L137 encePairwiseOnDemand]: 280/284 looper letters, 90 selfloop transitions, 4 changer transitions 0/96 dead transitions. [2022-11-25 18:17:49,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 96 transitions, 530 flow [2022-11-25 18:17:49,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:17:49,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:17:49,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 703 transitions. [2022-11-25 18:17:49,323 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4950704225352113 [2022-11-25 18:17:49,323 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 703 transitions. [2022-11-25 18:17:49,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 703 transitions. [2022-11-25 18:17:49,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:49,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 703 transitions. [2022-11-25 18:17:49,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 140.6) internal successors, (703), 5 states have internal predecessors, (703), 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 18:17:49,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 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 18:17:49,330 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 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 18:17:49,330 INFO L175 Difference]: Start difference. First operand has 53 places, 44 transitions, 154 flow. Second operand 5 states and 703 transitions. [2022-11-25 18:17:49,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 96 transitions, 530 flow [2022-11-25 18:17:49,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 96 transitions, 517 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 18:17:49,334 INFO L231 Difference]: Finished difference. Result has 57 places, 47 transitions, 183 flow [2022-11-25 18:17:49,334 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=183, PETRI_PLACES=57, PETRI_TRANSITIONS=47} [2022-11-25 18:17:49,335 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 5 predicate places. [2022-11-25 18:17:49,335 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 47 transitions, 183 flow [2022-11-25 18:17:49,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.2) internal successors, (671), 5 states have internal predecessors, (671), 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 18:17:49,336 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:49,336 INFO L209 CegarLoopForPetriNet]: 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, 1] [2022-11-25 18:17:49,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:49,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:49,550 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:49,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:49,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1252022842, now seen corresponding path program 1 times [2022-11-25 18:17:49,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:17:49,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763121896] [2022-11-25 18:17:49,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:49,551 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 18:17:49,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:17:49,558 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:49,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:49,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 18:17:49,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:17:50,618 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 18:17:50,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:17:50,619 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:17:50,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763121896] [2022-11-25 18:17:50,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763121896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:50,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:50,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:17:50,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911222195] [2022-11-25 18:17:50,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:50,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:17:50,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:17:50,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:17:50,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:17:51,348 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 284 [2022-11-25 18:17:51,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 47 transitions, 183 flow. Second operand has 6 states, 6 states have (on average 118.16666666666667) internal successors, (709), 6 states have internal predecessors, (709), 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 18:17:51,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:51,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 284 [2022-11-25 18:17:51,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:52,408 INFO L130 PetriNetUnfolder]: 1763/2688 cut-off events. [2022-11-25 18:17:52,408 INFO L131 PetriNetUnfolder]: For 1128/1128 co-relation queries the response was YES. [2022-11-25 18:17:52,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6937 conditions, 2688 events. 1763/2688 cut-off events. For 1128/1128 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 14217 event pairs, 115 based on Foata normal form. 4/2654 useless extension candidates. Maximal degree in co-relation 6927. Up to 2348 conditions per place. [2022-11-25 18:17:52,421 INFO L137 encePairwiseOnDemand]: 279/284 looper letters, 47 selfloop transitions, 4 changer transitions 18/72 dead transitions. [2022-11-25 18:17:52,421 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 72 transitions, 406 flow [2022-11-25 18:17:52,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:17:52,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 18:17:52,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 728 transitions. [2022-11-25 18:17:52,425 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4272300469483568 [2022-11-25 18:17:52,426 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 728 transitions. [2022-11-25 18:17:52,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 728 transitions. [2022-11-25 18:17:52,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:52,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 728 transitions. [2022-11-25 18:17:52,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 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 18:17:52,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 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 18:17:52,434 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 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 18:17:52,434 INFO L175 Difference]: Start difference. First operand has 57 places, 47 transitions, 183 flow. Second operand 6 states and 728 transitions. [2022-11-25 18:17:52,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 72 transitions, 406 flow [2022-11-25 18:17:52,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 72 transitions, 404 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:17:52,439 INFO L231 Difference]: Finished difference. Result has 60 places, 40 transitions, 146 flow [2022-11-25 18:17:52,439 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=146, PETRI_PLACES=60, PETRI_TRANSITIONS=40} [2022-11-25 18:17:52,440 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 8 predicate places. [2022-11-25 18:17:52,440 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 40 transitions, 146 flow [2022-11-25 18:17:52,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.16666666666667) internal successors, (709), 6 states have internal predecessors, (709), 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 18:17:52,441 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:52,441 INFO L209 CegarLoopForPetriNet]: 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, 1] [2022-11-25 18:17:52,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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)] Ended with exit code 0 [2022-11-25 18:17:52,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:52,655 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:52,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:52,655 INFO L85 PathProgramCache]: Analyzing trace with hash 747510968, now seen corresponding path program 3 times [2022-11-25 18:17:52,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:17:52,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055027721] [2022-11-25 18:17:52,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 18:17:52,656 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 18:17:52,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:17:52,658 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:52,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:52,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 18:17:52,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:17:52,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 18:17:52,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:17:52,880 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 18:17:52,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:17:52,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:17:52,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055027721] [2022-11-25 18:17:52,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055027721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:52,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:52,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:17:52,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482180130] [2022-11-25 18:17:52,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:52,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:17:52,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:17:52,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:17:52,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:17:52,898 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 284 [2022-11-25 18:17:52,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 40 transitions, 146 flow. Second operand has 4 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 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 18:17:52,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:52,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 284 [2022-11-25 18:17:52,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:53,559 INFO L130 PetriNetUnfolder]: 1994/3080 cut-off events. [2022-11-25 18:17:53,559 INFO L131 PetriNetUnfolder]: For 966/969 co-relation queries the response was YES. [2022-11-25 18:17:53,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8022 conditions, 3080 events. 1994/3080 cut-off events. For 966/969 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 16866 event pairs, 868 based on Foata normal form. 2/3006 useless extension candidates. Maximal degree in co-relation 8012. Up to 1790 conditions per place. [2022-11-25 18:17:53,577 INFO L137 encePairwiseOnDemand]: 280/284 looper letters, 50 selfloop transitions, 2 changer transitions 19/73 dead transitions. [2022-11-25 18:17:53,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 73 transitions, 409 flow [2022-11-25 18:17:53,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:17:53,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:17:53,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 568 transitions. [2022-11-25 18:17:53,581 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-11-25 18:17:53,581 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 568 transitions. [2022-11-25 18:17:53,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 568 transitions. [2022-11-25 18:17:53,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:53,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 568 transitions. [2022-11-25 18:17:53,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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 18:17:53,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 284.0) internal successors, (1420), 5 states have internal predecessors, (1420), 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 18:17:53,588 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 284.0) internal successors, (1420), 5 states have internal predecessors, (1420), 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 18:17:53,588 INFO L175 Difference]: Start difference. First operand has 60 places, 40 transitions, 146 flow. Second operand 4 states and 568 transitions. [2022-11-25 18:17:53,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 73 transitions, 409 flow [2022-11-25 18:17:53,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 73 transitions, 381 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-11-25 18:17:53,592 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 139 flow [2022-11-25 18:17:53,593 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2022-11-25 18:17:53,593 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2022-11-25 18:17:53,594 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 139 flow [2022-11-25 18:17:53,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 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 18:17:53,594 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:53,595 INFO L209 CegarLoopForPetriNet]: 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, 1] [2022-11-25 18:17:53,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:53,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:53,809 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:53,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:53,810 INFO L85 PathProgramCache]: Analyzing trace with hash 774290932, now seen corresponding path program 4 times [2022-11-25 18:17:53,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:17:53,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194058675] [2022-11-25 18:17:53,811 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-25 18:17:53,811 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 18:17:53,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:17:53,812 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:53,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 (12)] Waiting until timeout for monitored process [2022-11-25 18:17:53,984 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-25 18:17:53,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:17:53,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 18:17:53,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:17:54,056 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 18:17:54,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:17:54,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:17:54,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194058675] [2022-11-25 18:17:54,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194058675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:54,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:54,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:17:54,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431001394] [2022-11-25 18:17:54,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:54,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:17:54,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:17:54,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:17:54,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:17:54,082 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 284 [2022-11-25 18:17:54,083 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 134.2) internal successors, (671), 5 states have internal predecessors, (671), 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 18:17:54,083 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:54,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 284 [2022-11-25 18:17:54,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:54,641 INFO L130 PetriNetUnfolder]: 1342/2121 cut-off events. [2022-11-25 18:17:54,641 INFO L131 PetriNetUnfolder]: For 788/792 co-relation queries the response was YES. [2022-11-25 18:17:54,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5585 conditions, 2121 events. 1342/2121 cut-off events. For 788/792 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10284 event pairs, 486 based on Foata normal form. 1/2098 useless extension candidates. Maximal degree in co-relation 5577. Up to 848 conditions per place. [2022-11-25 18:17:54,649 INFO L137 encePairwiseOnDemand]: 280/284 looper letters, 43 selfloop transitions, 1 changer transitions 36/82 dead transitions. [2022-11-25 18:17:54,649 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 82 transitions, 448 flow [2022-11-25 18:17:54,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:17:54,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 18:17:54,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 696 transitions. [2022-11-25 18:17:54,654 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49014084507042255 [2022-11-25 18:17:54,654 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 696 transitions. [2022-11-25 18:17:54,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 696 transitions. [2022-11-25 18:17:54,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:54,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 696 transitions. [2022-11-25 18:17:54,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 139.2) internal successors, (696), 5 states have internal predecessors, (696), 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 18:17:54,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 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 18:17:54,663 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 284.0) internal successors, (1704), 6 states have internal predecessors, (1704), 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 18:17:54,663 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 139 flow. Second operand 5 states and 696 transitions. [2022-11-25 18:17:54,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 82 transitions, 448 flow [2022-11-25 18:17:54,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 82 transitions, 434 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-25 18:17:54,673 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 140 flow [2022-11-25 18:17:54,673 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=140, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2022-11-25 18:17:54,674 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2022-11-25 18:17:54,674 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 140 flow [2022-11-25 18:17:54,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.2) internal successors, (671), 5 states have internal predecessors, (671), 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 18:17:54,675 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:54,675 INFO L209 CegarLoopForPetriNet]: 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, 1] [2022-11-25 18:17:54,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 (12)] Forceful destruction successful, exit code 0 [2022-11-25 18:17:54,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:54,889 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-11-25 18:17:54,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:54,889 INFO L85 PathProgramCache]: Analyzing trace with hash -2104729858, now seen corresponding path program 5 times [2022-11-25 18:17:54,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:17:54,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089942357] [2022-11-25 18:17:54,890 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-25 18:17:54,890 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 18:17:54,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:17:54,891 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:54,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 (13)] Waiting until timeout for monitored process [2022-11-25 18:17:55,118 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 18:17:55,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-25 18:17:55,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:17:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:17:55,371 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 18:17:55,372 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:17:55,373 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-11-25 18:17:55,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-11-25 18:17:55,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-11-25 18:17:55,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-11-25 18:17:55,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-11-25 18:17:55,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-11-25 18:17:55,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-11-25 18:17:55,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-11-25 18:17:55,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-11-25 18:17:55,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-11-25 18:17:55,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-11-25 18:17:55,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-11-25 18:17:55,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-11-25 18:17:55,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-11-25 18:17:55,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-11-25 18:17:55,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-11-25 18:17:55,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 (13)] Forceful destruction successful, exit code 0 [2022-11-25 18:17:55,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/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 18:17:55,593 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:17:55,599 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 18:17:55,600 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:17:55,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:17:55 BasicIcfg [2022-11-25 18:17:55,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:17:55,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:17:55,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:17:55,746 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:17:55,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:17:23" (3/4) ... [2022-11-25 18:17:55,750 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:17:55,750 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:17:55,751 INFO L158 Benchmark]: Toolchain (without parser) took 34073.51ms. Allocated memory was 75.5MB in the beginning and 1.6GB in the end (delta: 1.6GB). Free memory was 51.8MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. [2022-11-25 18:17:55,751 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 75.5MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:17:55,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 839.91ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 51.6MB in the beginning and 72.1MB in the end (delta: -20.5MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-11-25 18:17:55,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.63ms. Allocated memory is still 102.8MB. Free memory was 72.1MB in the beginning and 69.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:17:55,752 INFO L158 Benchmark]: Boogie Preprocessor took 97.54ms. Allocated memory is still 102.8MB. Free memory was 69.4MB in the beginning and 67.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:17:55,752 INFO L158 Benchmark]: RCFGBuilder took 989.36ms. Allocated memory is still 102.8MB. Free memory was 67.3MB in the beginning and 60.8MB in the end (delta: 6.5MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2022-11-25 18:17:55,753 INFO L158 Benchmark]: TraceAbstraction took 32025.32ms. Allocated memory was 102.8MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 60.2MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 704.8MB. Max. memory is 16.1GB. [2022-11-25 18:17:55,753 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 1.6GB. Free memory is still 1.5GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:17:55,755 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 75.5MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 839.91ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 51.6MB in the beginning and 72.1MB in the end (delta: -20.5MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.63ms. Allocated memory is still 102.8MB. Free memory was 72.1MB in the beginning and 69.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.54ms. Allocated memory is still 102.8MB. Free memory was 69.4MB in the beginning and 67.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 989.36ms. Allocated memory is still 102.8MB. Free memory was 67.3MB in the beginning and 60.8MB in the end (delta: 6.5MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * TraceAbstraction took 32025.32ms. Allocated memory was 102.8MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 60.2MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 704.8MB. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 1.6GB. Free memory is still 1.5GB. 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: 11.5s, 156 PlacesBefore, 52 PlacesAfterwards, 145 TransitionsBefore, 40 TransitionsAfterwards, 3644 CoEnabledTransitionPairs, 7 FixpointIterations, 51 TrivialSequentialCompositions, 74 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 135 TotalNumberOfCompositions, 10044 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4747, independent: 4535, independent conditional: 0, independent unconditional: 4535, dependent: 212, dependent conditional: 0, dependent unconditional: 212, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2677, independent: 2592, independent conditional: 0, independent unconditional: 2592, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2677, independent: 2562, independent conditional: 0, independent unconditional: 2562, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 115, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 773, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 678, dependent conditional: 0, dependent unconditional: 678, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4747, independent: 1943, independent conditional: 0, independent unconditional: 1943, dependent: 127, dependent conditional: 0, dependent unconditional: 127, unknown: 2677, unknown conditional: 0, unknown unconditional: 2677] , Statistics on independence cache: Total cache size (in pairs): 360, Positive cache size: 328, Positive conditional cache size: 0, Positive unconditional cache size: 328, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 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_p1_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int a = 0; [L719] 0 _Bool a$flush_delayed; [L720] 0 int a$mem_tmp; [L721] 0 _Bool a$r_buff0_thd0; [L722] 0 _Bool a$r_buff0_thd1; [L723] 0 _Bool a$r_buff0_thd2; [L724] 0 _Bool a$r_buff0_thd3; [L725] 0 _Bool a$r_buff0_thd4; [L726] 0 _Bool a$r_buff1_thd0; [L727] 0 _Bool a$r_buff1_thd1; [L728] 0 _Bool a$r_buff1_thd2; [L729] 0 _Bool a$r_buff1_thd3; [L730] 0 _Bool a$r_buff1_thd4; [L731] 0 _Bool a$read_delayed; [L732] 0 int *a$read_delayed_var; [L733] 0 int a$w_buff0; [L734] 0 _Bool a$w_buff0_used; [L735] 0 int a$w_buff1; [L736] 0 _Bool a$w_buff1_used; [L737] 0 _Bool main$tmp_guard0; [L738] 0 _Bool main$tmp_guard1; [L740] 0 int x = 0; [L742] 0 int y = 0; [L744] 0 int z = 0; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L861] 0 pthread_t t1353; [L862] FCALL, FORK 0 pthread_create(&t1353, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1353, ((void *)0), P0, ((void *)0))=0, t1353={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L863] 0 pthread_t t1354; [L750] 1 a$w_buff1 = a$w_buff0 [L751] 1 a$w_buff0 = 1 [L752] 1 a$w_buff1_used = a$w_buff0_used [L753] 1 a$w_buff0_used = (_Bool)1 [L754] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L754] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L755] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L756] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L757] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L758] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L759] 1 a$r_buff1_thd4 = a$r_buff0_thd4 [L760] 1 a$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L864] FCALL, FORK 0 pthread_create(&t1354, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1354, ((void *)0), P1, ((void *)0))=1, t1353={11:0}, t1354={15:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L865] 0 pthread_t t1355; [L763] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L780] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L783] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L786] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L787] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L788] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L789] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L790] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L866] FCALL, FORK 0 pthread_create(&t1355, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1355, ((void *)0), P2, ((void *)0))=2, t1353={11:0}, t1354={15:0}, t1355={7:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0] [L800] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L867] 0 pthread_t t1356; [L803] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L868] FCALL, FORK 0 pthread_create(&t1356, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1356, ((void *)0), P3, ((void *)0))=3, t1353={11:0}, t1354={15:0}, t1355={7:0}, t1356={-2147483637:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L806] 3 a = a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L807] 3 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L808] 3 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L809] 3 a$r_buff0_thd3 = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L810] 3 a$r_buff1_thd3 = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0] [L793] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L795] 2 return 0; [L813] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L815] 3 return 0; [L820] 4 z = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=1] [L823] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L824] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L825] 4 a$flush_delayed = weak$$choice2 [L826] 4 a$mem_tmp = a [L827] 4 a = !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff1) [L828] 4 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff0)) [L829] 4 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff1 : a$w_buff1)) [L830] 4 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used)) [L831] 4 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L832] 4 a$r_buff0_thd4 = weak$$choice2 ? a$r_buff0_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff0_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4)) [L833] 4 a$r_buff1_thd4 = weak$$choice2 ? a$r_buff1_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff1_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L834] 4 __unbuffered_p3_EAX = a [L835] 4 a = a$flush_delayed ? a$mem_tmp : a [L836] 4 a$flush_delayed = (_Bool)0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=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$$choice0=2, weak$$choice2=0, x=2, y=1, z=1] [L766] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L767] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L768] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L769] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L770] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, 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$$choice0=2, weak$$choice2=0, x=2, y=1, z=1] [L839] 4 a = a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a) [L840] 4 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used [L841] 4 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$w_buff1_used [L842] 4 a$r_buff0_thd4 = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4 [L843] 4 a$r_buff1_thd4 = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=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$$choice0=2, weak$$choice2=0, x=2, y=1, z=1] [L846] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L848] 4 return 0; [L773] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L775] 1 return 0; [L870] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1353={11:0}, t1354={15:0}, t1355={7:0}, t1356={-2147483637:0}, weak$$choice0=2, weak$$choice2=0, x=2, y=1, z=1] [L872] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L872] RET 0 assume_abort_if_not(main$tmp_guard0) [L874] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L875] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L876] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L877] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L878] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, 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, t1353={11:0}, t1354={15:0}, t1355={7:0}, t1356={-2147483637:0}, weak$$choice0=2, weak$$choice2=0, x=2, y=1, z=1] [L881] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) [L883] CALL 0 __VERIFIER_assert(main$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_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=1, z=1] - 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: 859]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 866]: 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: 862]: 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: 868]: 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: 864]: 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. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 31.7s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 745 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 656 mSDsluCounter, 276 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 209 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2043 IncrementalHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 67 mSDtfsCounter, 2043 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=220occurred in iteration=6, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 244 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 205 ConstructedInterpolants, 22 QuantifiedInterpolants, 1975 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1737 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 18:17:55,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b8a7a1e-7731-479d-9366-58c30ae60d4e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample