./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-atomic/peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/peterson.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 --- 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-8393723 [2022-11-19 07:44:25,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:44:25,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:44:25,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:44:25,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:44:25,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:44:25,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:44:25,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:44:25,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:44:25,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:44:25,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:44:25,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:44:25,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:44:25,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:44:25,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:44:25,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:44:25,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:44:25,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:44:25,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:44:25,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:44:25,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:44:25,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:44:25,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:44:25,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:44:25,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:44:25,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:44:25,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:44:25,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:44:25,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:44:25,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:44:25,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:44:25,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:44:25,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:44:25,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:44:25,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:44:25,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:44:25,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:44:25,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:44:25,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:44:25,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:44:25,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:44:25,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 07:44:25,691 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:44:25,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:44:25,691 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:44:25,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:44:25,692 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:44:25,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:44:25,693 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:44:25,693 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:44:25,693 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:44:25,694 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:44:25,695 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:44:25,695 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:44:25,695 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:44:25,695 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:44:25,696 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:44:25,696 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:44:25,696 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:44:25,696 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:44:25,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:44:25,697 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:44:25,697 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:44:25,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:44:25,698 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:44:25,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:44:25,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:44:25,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:44:25,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:44:25,699 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:44:25,699 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:44:25,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:44:25,700 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:44:25,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:44:25,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:44:25,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:44:25,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:44:25,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:44:25,701 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:44:25,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:44:25,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:44:25,712 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:44:25,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:44:25,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:44:25,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:44:25,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee3d1a41e169e13d6fb9bc974b1d8f7c8de5421cb2dfbc7e3d9a400662188398 [2022-11-19 07:44:26,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:44:26,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:44:26,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:44:26,067 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:44:26,068 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:44:26,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-atomic/peterson.i [2022-11-19 07:44:26,174 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/data/abd9ae022/4aa0d6e9028546178b1a0ab3e25003f5/FLAG053e74a08 [2022-11-19 07:44:26,877 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:44:26,878 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/sv-benchmarks/c/pthread-atomic/peterson.i [2022-11-19 07:44:26,904 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/data/abd9ae022/4aa0d6e9028546178b1a0ab3e25003f5/FLAG053e74a08 [2022-11-19 07:44:27,140 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/data/abd9ae022/4aa0d6e9028546178b1a0ab3e25003f5 [2022-11-19 07:44:27,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:44:27,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:44:27,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:44:27,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:44:27,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:44:27,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:27" (1/1) ... [2022-11-19 07:44:27,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b40601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:27, skipping insertion in model container [2022-11-19 07:44:27,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:27" (1/1) ... [2022-11-19 07:44:27,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:44:27,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:44:27,469 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-19 07:44:27,628 WARN L234 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_f05cbc2e-f18e-4765-8352-9783a7fbdff1/sv-benchmarks/c/pthread-atomic/peterson.i[30997,31010] [2022-11-19 07:44:27,632 WARN L234 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_f05cbc2e-f18e-4765-8352-9783a7fbdff1/sv-benchmarks/c/pthread-atomic/peterson.i[31682,31695] [2022-11-19 07:44:27,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:44:27,656 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:44:27,687 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-19 07:44:27,729 WARN L234 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_f05cbc2e-f18e-4765-8352-9783a7fbdff1/sv-benchmarks/c/pthread-atomic/peterson.i[30997,31010] [2022-11-19 07:44:27,740 WARN L234 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_f05cbc2e-f18e-4765-8352-9783a7fbdff1/sv-benchmarks/c/pthread-atomic/peterson.i[31682,31695] [2022-11-19 07:44:27,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:44:27,789 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:44:27,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:27 WrapperNode [2022-11-19 07:44:27,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:44:27,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:44:27,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:44:27,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:44:27,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:27" (1/1) ... [2022-11-19 07:44:27,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:27" (1/1) ... [2022-11-19 07:44:27,861 INFO L138 Inliner]: procedures = 171, calls = 47, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2022-11-19 07:44:27,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:44:27,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:44:27,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:44:27,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:44:27,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:27" (1/1) ... [2022-11-19 07:44:27,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:27" (1/1) ... [2022-11-19 07:44:27,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:27" (1/1) ... [2022-11-19 07:44:27,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:27" (1/1) ... [2022-11-19 07:44:27,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:27" (1/1) ... [2022-11-19 07:44:27,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:27" (1/1) ... [2022-11-19 07:44:27,886 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:27" (1/1) ... [2022-11-19 07:44:27,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:27" (1/1) ... [2022-11-19 07:44:27,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:44:27,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:44:27,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:44:27,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:44:27,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:27" (1/1) ... [2022-11-19 07:44:27,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:44:27,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:44:27,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:44:27,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:44:28,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:44:28,007 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-19 07:44:28,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-19 07:44:28,008 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-19 07:44:28,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-19 07:44:28,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:44:28,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 07:44:28,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:44:28,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:44:28,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:44:28,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:44:28,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 07:44:28,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:44:28,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:44:28,011 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 07:44:28,163 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:44:28,165 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:44:28,434 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:44:28,442 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:44:28,442 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:44:28,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:28 BoogieIcfgContainer [2022-11-19 07:44:28,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:44:28,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:44:28,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:44:28,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:44:28,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:44:27" (1/3) ... [2022-11-19 07:44:28,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6b07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:28, skipping insertion in model container [2022-11-19 07:44:28,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:27" (2/3) ... [2022-11-19 07:44:28,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6b07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:28, skipping insertion in model container [2022-11-19 07:44:28,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:28" (3/3) ... [2022-11-19 07:44:28,459 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson.i [2022-11-19 07:44:28,469 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 07:44:28,482 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:44:28,482 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-19 07:44:28,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6b07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:44:28, skipping insertion in model container [2022-11-19 07:44:28,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:44:28,485 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:44:28,485 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:44:28,485 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:44:28,486 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:28" (3/3) ... [2022-11-19 07:44:28,490 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:44:28,498 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2022-11-19 07:44:28,498 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2022-11-19 07:44:28,502 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-19 07:44:28,502 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-19 07:44:28,503 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 07:44:28,503 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:44:28,541 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:44:28,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:44:28,543 INFO L158 Benchmark]: Toolchain (without parser) took 1396.67ms. Allocated memory is still 123.7MB. Free memory was 77.4MB in the beginning and 65.4MB in the end (delta: 12.0MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-11-19 07:44:28,544 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 123.7MB. Free memory was 95.8MB in the beginning and 95.7MB in the end (delta: 73.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:44:28,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 642.91ms. Allocated memory is still 123.7MB. Free memory was 77.2MB in the beginning and 87.2MB in the end (delta: -10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:44:28,545 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.70ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 85.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:44:28,546 INFO L158 Benchmark]: Boogie Preprocessor took 32.18ms. Allocated memory is still 123.7MB. Free memory was 85.4MB in the beginning and 83.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:44:28,546 INFO L158 Benchmark]: RCFGBuilder took 552.63ms. Allocated memory is still 123.7MB. Free memory was 83.7MB in the beginning and 70.7MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 07:44:28,547 INFO L158 Benchmark]: TraceAbstraction took 34.91ms. Allocated memory is still 123.7MB. Free memory was 70.1MB in the beginning and 68.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:44:28,548 INFO L158 Benchmark]: Witness Printer took 56.22ms. Allocated memory is still 123.7MB. Free memory was 68.0MB in the beginning and 65.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:44:28,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 123.7MB. Free memory was 95.8MB in the beginning and 95.7MB in the end (delta: 73.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 642.91ms. Allocated memory is still 123.7MB. Free memory was 77.2MB in the beginning and 87.2MB in the end (delta: -10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.70ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 85.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.18ms. Allocated memory is still 123.7MB. Free memory was 85.4MB in the beginning and 83.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.63ms. Allocated memory is still 123.7MB. Free memory was 83.7MB in the beginning and 70.7MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 34.91ms. Allocated memory is still 123.7MB. Free memory was 70.1MB in the beginning and 68.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 56.22ms. Allocated memory is still 123.7MB. Free memory was 68.0MB in the beginning and 65.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2022-11-19 07:44:28,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f05cbc2e-f18e-4765-8352-9783a7fbdff1/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE