./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread/singleton.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/singleton.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- 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 18:49:20,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:49:20,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:49:20,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:49:20,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:49:20,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:49:20,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:49:20,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:49:20,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:49:20,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:49:20,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:49:20,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:49:20,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:49:20,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:49:20,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:49:20,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:49:20,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:49:20,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:49:20,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:49:20,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:49:20,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:49:20,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:49:20,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:49:20,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:49:20,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:49:20,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:49:20,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:49:20,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:49:20,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:49:20,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:49:20,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:49:20,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:49:20,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:49:20,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:49:20,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:49:20,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:49:20,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:49:20,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:49:20,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:49:20,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:49:20,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:49:20,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2022-11-25 18:49:20,203 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:49:20,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:49:20,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:49:20,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:49:20,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:49:20,206 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:49:20,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:49:20,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:49:20,207 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:49:20,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:49:20,209 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:49:20,209 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:49:20,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:49:20,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:49:20,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:49:20,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:49:20,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:49:20,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:49:20,211 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:49:20,212 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:49:20,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:49:20,212 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:49:20,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:49:20,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:49:20,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:49:20,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:49:20,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:49:20,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:49:20,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:49:20,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:49:20,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:49:20,215 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-11-25 18:49:20,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:49:20,216 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-25 18:49:20,216 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-25 18:49:20,216 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-25 18:49:20,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:49:20,217 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-25 18:49:20,217 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-25 18:49:20,217 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_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2022-11-25 18:49:20,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:49:20,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:49:20,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:49:20,634 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:49:20,635 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:49:20,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/../../sv-benchmarks/c/pthread/singleton.i [2022-11-25 18:49:23,793 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:49:24,207 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:49:24,208 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/sv-benchmarks/c/pthread/singleton.i [2022-11-25 18:49:24,242 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/data/f02e925d1/086308d6afa645d5b4d4a13d06328c13/FLAG4f44799d5 [2022-11-25 18:49:24,264 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/data/f02e925d1/086308d6afa645d5b4d4a13d06328c13 [2022-11-25 18:49:24,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:49:24,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:49:24,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:49:24,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:49:24,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:49:24,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:49:24" (1/1) ... [2022-11-25 18:49:24,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2bbc5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:24, skipping insertion in model container [2022-11-25 18:49:24,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:49:24" (1/1) ... [2022-11-25 18:49:24,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:49:24,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:49:24,618 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:49:24,935 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_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-11-25 18:49:24,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:49:24,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:49:24,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:49:24,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:49:24,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:49:24,983 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:49:25,003 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:49:25,031 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_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/sv-benchmarks/c/pthread/singleton.i[55547,55560] [2022-11-25 18:49:25,032 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:49:25,033 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:49:25,034 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 18:49:25,035 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 18:49:25,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:49:25,131 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:49:25,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:25 WrapperNode [2022-11-25 18:49:25,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:49:25,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:49:25,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:49:25,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:49:25,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:25" (1/1) ... [2022-11-25 18:49:25,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:25" (1/1) ... [2022-11-25 18:49:25,210 INFO L138 Inliner]: procedures = 325, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-25 18:49:25,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:49:25,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:49:25,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:49:25,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:49:25,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:25" (1/1) ... [2022-11-25 18:49:25,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:25" (1/1) ... [2022-11-25 18:49:25,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:25" (1/1) ... [2022-11-25 18:49:25,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:25" (1/1) ... [2022-11-25 18:49:25,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:25" (1/1) ... [2022-11-25 18:49:25,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:25" (1/1) ... [2022-11-25 18:49:25,251 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:25" (1/1) ... [2022-11-25 18:49:25,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:25" (1/1) ... [2022-11-25 18:49:25,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:49:25,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:49:25,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:49:25,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:49:25,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:25" (1/1) ... [2022-11-25 18:49:25,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:49:25,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/z3 [2022-11-25 18:49:25,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:49:25,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:49:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 18:49:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:49:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:49:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 18:49:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:49:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-11-25 18:49:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-11-25 18:49:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 18:49:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 18:49:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 18:49:25,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 18:49:25,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 18:49:25,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 18:49:25,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:49:25,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:49:25,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:49:25,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:49:25,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:49:25,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:49:25,357 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 18:49:25,511 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:49:25,513 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:49:25,807 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:49:25,823 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:49:25,823 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:49:25,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:49:25 BoogieIcfgContainer [2022-11-25 18:49:25,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:49:25,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:49:25,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:49:25,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:49:25,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:49:24" (1/3) ... [2022-11-25 18:49:25,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780edee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:49:25, skipping insertion in model container [2022-11-25 18:49:25,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:49:25" (2/3) ... [2022-11-25 18:49:25,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780edee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:49:25, skipping insertion in model container [2022-11-25 18:49:25,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:49:25" (3/3) ... [2022-11-25 18:49:25,841 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2022-11-25 18:49:25,857 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:49:25,869 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:49:25,869 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-25 18:49:25,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780edee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:49:25, skipping insertion in model container [2022-11-25 18:49:25,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:49:25,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:49:25,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:49:25,873 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:49:25,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:49:25" (3/3) ... [2022-11-25 18:49:25,877 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:49:25,886 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2022-11-25 18:49:25,886 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-25 18:49:25,886 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-25 18:49:25,886 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-25 18:49:25,890 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-25 18:49:25,891 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 18:49:25,891 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 18:49:25,891 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:49:25,936 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/witness.graphml [2022-11-25 18:49:25,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:49:25,939 INFO L158 Benchmark]: Toolchain (without parser) took 1664.76ms. Allocated memory is still 180.4MB. Free memory was 145.4MB in the beginning and 86.1MB in the end (delta: 59.2MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-25 18:49:25,939 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 127.9MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:49:25,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 858.33ms. Allocated memory is still 180.4MB. Free memory was 144.8MB in the beginning and 111.8MB in the end (delta: 33.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-25 18:49:25,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.19ms. Allocated memory is still 180.4MB. Free memory was 111.8MB in the beginning and 109.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:49:25,942 INFO L158 Benchmark]: Boogie Preprocessor took 44.90ms. Allocated memory is still 180.4MB. Free memory was 109.2MB in the beginning and 107.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:49:25,945 INFO L158 Benchmark]: RCFGBuilder took 570.78ms. Allocated memory is still 180.4MB. Free memory was 107.6MB in the beginning and 91.4MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 18:49:25,946 INFO L158 Benchmark]: TraceAbstraction took 41.30ms. Allocated memory is still 180.4MB. Free memory was 90.8MB in the beginning and 88.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:49:25,949 INFO L158 Benchmark]: Witness Printer took 64.75ms. Allocated memory is still 180.4MB. Free memory was 88.7MB in the beginning and 86.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:49:25,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 127.9MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 858.33ms. Allocated memory is still 180.4MB. Free memory was 144.8MB in the beginning and 111.8MB in the end (delta: 33.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.19ms. Allocated memory is still 180.4MB. Free memory was 111.8MB in the beginning and 109.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.90ms. Allocated memory is still 180.4MB. Free memory was 109.2MB in the beginning and 107.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 570.78ms. Allocated memory is still 180.4MB. Free memory was 107.6MB in the beginning and 91.4MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 41.30ms. Allocated memory is still 180.4MB. Free memory was 90.8MB in the beginning and 88.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 64.75ms. Allocated memory is still 180.4MB. Free memory was 88.7MB in the beginning and 86.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. 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! [2022-11-25 18:49:25,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d1bde2a-8660-4d06-bdbb-7c631b16ca5d/bin/ugemcutter-syNpU3ikLH/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: TRUE