./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/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_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/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_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/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 e946e8dea30db7efb52f6f71a24f03cd895152f9df0eae9d8d1291d135f806ee --- 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 15:25:56,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:25:56,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:25:56,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:25:56,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:25:56,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:25:56,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:25:56,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:25:56,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:25:56,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:25:56,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:25:56,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:25:56,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:25:56,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:25:56,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:25:56,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:25:56,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:25:56,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:25:56,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:25:56,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:25:56,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:25:56,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:25:56,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:25:56,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:25:56,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:25:56,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:25:56,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:25:56,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:25:56,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:25:56,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:25:56,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:25:56,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:25:56,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:25:56,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:25:56,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:25:56,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:25:56,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:25:56,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:25:56,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:25:56,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:25:56,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:25:56,124 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-25 15:25:56,160 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:25:56,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:25:56,160 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:25:56,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:25:56,161 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:25:56,161 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:25:56,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:25:56,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:25:56,167 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:25:56,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:25:56,168 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:25:56,169 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:25:56,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:25:56,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:25:56,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:25:56,169 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 15:25:56,170 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 15:25:56,170 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 15:25:56,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:25:56,170 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 15:25:56,170 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:25:56,170 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:25:56,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:25:56,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:25:56,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:25:56,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:25:56,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:25:56,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:25:56,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:25:56,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:25:56,173 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:25:56,173 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:25:56,174 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:25:56,174 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_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e946e8dea30db7efb52f6f71a24f03cd895152f9df0eae9d8d1291d135f806ee [2022-11-25 15:25:56,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:25:56,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:25:56,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:25:56,495 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:25:56,496 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:25:56,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i [2022-11-25 15:25:59,613 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:25:59,877 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:25:59,883 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i [2022-11-25 15:25:59,899 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/bin/uautomizer-ZsLfNo2U6R/data/3db67606c/c660bcd1ce584e01bbd1ebbeec47f015/FLAG6e8798782 [2022-11-25 15:25:59,926 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/bin/uautomizer-ZsLfNo2U6R/data/3db67606c/c660bcd1ce584e01bbd1ebbeec47f015 [2022-11-25 15:25:59,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:25:59,935 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:25:59,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:25:59,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:25:59,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:25:59,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:25:59" (1/1) ... [2022-11-25 15:25:59,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@782601d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:25:59, skipping insertion in model container [2022-11-25 15:25:59,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:25:59" (1/1) ... [2022-11-25 15:25:59,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:26:00,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:26:00,275 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_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i[949,962] [2022-11-25 15:26:00,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,608 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,628 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,639 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,641 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,666 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,675 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:26:00,688 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:26:00,702 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_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/sv-benchmarks/c/pthread-wmm/safe016_rmo.opt.i[949,962] [2022-11-25 15:26:00,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,728 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,731 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,732 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,732 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,743 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,753 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:26:00,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:26:00,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:26:00,807 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:26:00,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:00 WrapperNode [2022-11-25 15:26:00,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:26:00,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:26:00,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:26:00,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:26:00,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:00" (1/1) ... [2022-11-25 15:26:00,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:00" (1/1) ... [2022-11-25 15:26:00,928 INFO L138 Inliner]: procedures = 177, calls = 89, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 181 [2022-11-25 15:26:00,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:26:00,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:26:00,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:26:00,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:26:00,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:00" (1/1) ... [2022-11-25 15:26:00,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:00" (1/1) ... [2022-11-25 15:26:00,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:00" (1/1) ... [2022-11-25 15:26:00,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:00" (1/1) ... [2022-11-25 15:26:00,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:00" (1/1) ... [2022-11-25 15:26:01,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:00" (1/1) ... [2022-11-25 15:26:01,023 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:00" (1/1) ... [2022-11-25 15:26:01,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:00" (1/1) ... [2022-11-25 15:26:01,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:26:01,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:26:01,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:26:01,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:26:01,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:00" (1/1) ... [2022-11-25 15:26:01,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:26:01,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:26:01,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:26:01,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bb22b0a-b8c2-4b70-962c-707f9e693bf9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:26:01,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:26:01,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:26:01,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 15:26:01,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:26:01,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:26:01,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:26:01,140 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 15:26:01,140 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 15:26:01,140 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 15:26:01,140 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 15:26:01,141 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 15:26:01,141 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 15:26:01,141 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-25 15:26:01,141 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-25 15:26:01,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:26:01,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 15:26:01,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:26:01,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:26:01,144 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 15:26:01,357 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:26:01,372 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:26:02,322 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:26:02,882 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:26:02,882 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:26:02,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:26:02 BoogieIcfgContainer [2022-11-25 15:26:02,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:26:02,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:26:02,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:26:02,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:26:02,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:25:59" (1/3) ... [2022-11-25 15:26:02,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ddc5b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:26:02, skipping insertion in model container [2022-11-25 15:26:02,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:26:00" (2/3) ... [2022-11-25 15:26:02,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ddc5b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:26:02, skipping insertion in model container [2022-11-25 15:26:02,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:26:02" (3/3) ... [2022-11-25 15:26:02,894 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_rmo.opt.i [2022-11-25 15:26:02,914 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:26:02,914 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2022-11-25 15:26:02,915 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 15:26:03,050 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 15:26:03,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 224 places, 213 transitions, 446 flow [2022-11-25 15:26:03,215 INFO L130 PetriNetUnfolder]: 2/209 cut-off events. [2022-11-25 15:26:03,215 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:26:03,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 209 events. 2/209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 327 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 147. Up to 2 conditions per place. [2022-11-25 15:26:03,222 INFO L82 GeneralOperation]: Start removeDead. Operand has 224 places, 213 transitions, 446 flow [2022-11-25 15:26:03,244 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 209 transitions, 430 flow [2022-11-25 15:26:03,249 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 15:26:03,271 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 220 places, 209 transitions, 430 flow [2022-11-25 15:26:03,281 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 220 places, 209 transitions, 430 flow [2022-11-25 15:26:03,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 209 transitions, 430 flow [2022-11-25 15:26:03,405 INFO L130 PetriNetUnfolder]: 2/209 cut-off events. [2022-11-25 15:26:03,405 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:26:03,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 209 events. 2/209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 323 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 147. Up to 2 conditions per place. [2022-11-25 15:26:03,412 INFO L119 LiptonReduction]: Number of co-enabled transitions 10466 [2022-11-25 15:26:23,450 INFO L134 LiptonReduction]: Checked pairs total: 61342 [2022-11-25 15:26:23,450 INFO L136 LiptonReduction]: Total number of compositions: 195 [2022-11-25 15:26:23,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:26:23,477 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;@7415627b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:26:23,477 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2022-11-25 15:26:23,480 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-11-25 15:26:23,480 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:26:23,480 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:26:23,481 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 15:26:23,481 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 93 more)] === [2022-11-25 15:26:23,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:26:23,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1233, now seen corresponding path program 1 times [2022-11-25 15:26:23,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:26:23,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149137697] [2022-11-25 15:26:23,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:26:23,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:26:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:26:23,678 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 15:26:23,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:26:23,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149137697] [2022-11-25 15:26:23,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149137697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:26:23,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:26:23,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 15:26:23,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214572969] [2022-11-25 15:26:23,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:26:23,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 15:26:23,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:26:23,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 15:26:23,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:26:23,732 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 408 [2022-11-25 15:26:23,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 93 transitions, 198 flow. Second operand has 2 states, 2 states have (on average 153.5) internal successors, (307), 2 states have internal predecessors, (307), 0 states have call successors, (0), 0 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 15:26:23,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:26:23,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 408 [2022-11-25 15:26:23,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand