./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba --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 bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 --- 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-b5237d8 [2022-11-22 01:50:06,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:50:06,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:50:06,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:50:06,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:50:06,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:50:06,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:50:06,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:50:06,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:50:06,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:50:06,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:50:06,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:50:06,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:50:06,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:50:06,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:50:06,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:50:06,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:50:06,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:50:06,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:50:06,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:50:06,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:50:06,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:50:06,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:50:06,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:50:06,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:50:06,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:50:06,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:50:06,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:50:06,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:50:06,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:50:06,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:50:06,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:50:06,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:50:06,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:50:06,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:50:06,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:50:06,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:50:06,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:50:06,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:50:06,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:50:06,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:50:06,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 01:50:06,292 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:50:06,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:50:06,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:50:06,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:50:06,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:50:06,295 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:50:06,295 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:50:06,295 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:50:06,295 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:50:06,296 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:50:06,297 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:50:06,297 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:50:06,297 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:50:06,298 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:50:06,298 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:50:06,298 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:50:06,298 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:50:06,299 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:50:06,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:50:06,300 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:50:06,300 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:50:06,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:50:06,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:50:06,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:50:06,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:50:06,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:50:06,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:50:06,301 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:50:06,302 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:50:06,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:50:06,302 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:50:06,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:50:06,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:50:06,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:50:06,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:50:06,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:50:06,304 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:50:06,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:50:06,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:50:06,305 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:50:06,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:50:06,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:50:06,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:50:06,305 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_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc84ca2197caec735a8480f9d61b820c686ed9ae52711f2c7500999694c2ad40 [2022-11-22 01:50:06,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:50:06,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:50:06,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:50:06,598 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:50:06,599 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:50:06,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-atomic/szymanski.i [2022-11-22 01:50:09,676 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:50:09,980 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:50:09,981 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/sv-benchmarks/c/pthread-atomic/szymanski.i [2022-11-22 01:50:09,994 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/data/50756ea19/78b14a6ad51c4eb583ef1970e1899589/FLAG6e453817e [2022-11-22 01:50:10,017 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/data/50756ea19/78b14a6ad51c4eb583ef1970e1899589 [2022-11-22 01:50:10,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:50:10,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:50:10,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:50:10,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:50:10,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:50:10,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:50:10" (1/1) ... [2022-11-22 01:50:10,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8b7555b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:10, skipping insertion in model container [2022-11-22 01:50:10,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:50:10" (1/1) ... [2022-11-22 01:50:10,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:50:10,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:50:10,359 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:50:10,556 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_49bfbcef-47fd-4221-b4d1-923377593140/sv-benchmarks/c/pthread-atomic/szymanski.i[31505,31518] [2022-11-22 01:50:10,567 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_49bfbcef-47fd-4221-b4d1-923377593140/sv-benchmarks/c/pthread-atomic/szymanski.i[32915,32928] [2022-11-22 01:50:10,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:50:10,582 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:50:10,597 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:50:10,618 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_49bfbcef-47fd-4221-b4d1-923377593140/sv-benchmarks/c/pthread-atomic/szymanski.i[31505,31518] [2022-11-22 01:50:10,622 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_49bfbcef-47fd-4221-b4d1-923377593140/sv-benchmarks/c/pthread-atomic/szymanski.i[32915,32928] [2022-11-22 01:50:10,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:50:10,660 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:50:10,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:10 WrapperNode [2022-11-22 01:50:10,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:50:10,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:50:10,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:50:10,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:50:10,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:10" (1/1) ... [2022-11-22 01:50:10,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:10" (1/1) ... [2022-11-22 01:50:10,712 INFO L138 Inliner]: procedures = 171, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2022-11-22 01:50:10,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:50:10,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:50:10,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:50:10,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:50:10,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:10" (1/1) ... [2022-11-22 01:50:10,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:10" (1/1) ... [2022-11-22 01:50:10,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:10" (1/1) ... [2022-11-22 01:50:10,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:10" (1/1) ... [2022-11-22 01:50:10,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:10" (1/1) ... [2022-11-22 01:50:10,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:10" (1/1) ... [2022-11-22 01:50:10,741 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:10" (1/1) ... [2022-11-22 01:50:10,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:10" (1/1) ... [2022-11-22 01:50:10,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:50:10,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:50:10,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:50:10,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:50:10,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:10" (1/1) ... [2022-11-22 01:50:10,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:50:10,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:50:10,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:50:10,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:50:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:50:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-22 01:50:10,846 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-22 01:50:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-22 01:50:10,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-22 01:50:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:50:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 01:50:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:50:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:50:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:50:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:50:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 01:50:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:50:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:50:10,850 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 01:50:11,001 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:50:11,004 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:50:11,231 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:50:11,238 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:50:11,238 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-22 01:50:11,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:50:11 BoogieIcfgContainer [2022-11-22 01:50:11,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:50:11,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:50:11,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:50:11,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:50:11,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:50:10" (1/3) ... [2022-11-22 01:50:11,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40958646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:50:11, skipping insertion in model container [2022-11-22 01:50:11,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:50:10" (2/3) ... [2022-11-22 01:50:11,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40958646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:50:11, skipping insertion in model container [2022-11-22 01:50:11,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:50:11" (3/3) ... [2022-11-22 01:50:11,306 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski.i [2022-11-22 01:50:11,316 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 01:50:11,335 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:50:11,335 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-22 01:50:11,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40958646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:50:11, skipping insertion in model container [2022-11-22 01:50:11,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:50:11,337 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:50:11,337 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:50:11,338 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:50:11,338 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:50:11" (3/3) ... [2022-11-22 01:50:11,356 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:50:11,362 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2022-11-22 01:50:11,362 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2022-11-22 01:50:11,366 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-22 01:50:11,366 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-22 01:50:11,366 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 01:50:11,366 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:50:11,400 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:50:11,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:50:11,402 INFO L158 Benchmark]: Toolchain (without parser) took 1377.52ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 102.2MB in the beginning and 155.9MB in the end (delta: -53.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:50:11,402 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 144.7MB. Free memory is still 91.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:50:11,403 INFO L158 Benchmark]: CACSL2BoogieTranslator took 634.56ms. Allocated memory is still 144.7MB. Free memory was 101.7MB in the beginning and 81.8MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 01:50:11,404 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.47ms. Allocated memory is still 144.7MB. Free memory was 81.8MB in the beginning and 79.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:50:11,404 INFO L158 Benchmark]: Boogie Preprocessor took 32.16ms. Allocated memory is still 144.7MB. Free memory was 79.7MB in the beginning and 78.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:50:11,405 INFO L158 Benchmark]: RCFGBuilder took 494.39ms. Allocated memory is still 144.7MB. Free memory was 78.1MB in the beginning and 63.5MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 01:50:11,406 INFO L158 Benchmark]: TraceAbstraction took 92.53ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 62.9MB in the beginning and 157.7MB in the end (delta: -94.8MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-11-22 01:50:11,406 INFO L158 Benchmark]: Witness Printer took 62.85ms. Allocated memory is still 188.7MB. Free memory was 157.7MB in the beginning and 155.9MB in the end (delta: 1.7MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-11-22 01:50:11,410 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 144.7MB. Free memory is still 91.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 634.56ms. Allocated memory is still 144.7MB. Free memory was 101.7MB in the beginning and 81.8MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.47ms. Allocated memory is still 144.7MB. Free memory was 81.8MB in the beginning and 79.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.16ms. Allocated memory is still 144.7MB. Free memory was 79.7MB in the beginning and 78.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 494.39ms. Allocated memory is still 144.7MB. Free memory was 78.1MB in the beginning and 63.5MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 92.53ms. Allocated memory was 144.7MB in the beginning and 188.7MB in the end (delta: 44.0MB). Free memory was 62.9MB in the beginning and 157.7MB in the end (delta: -94.8MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 62.85ms. Allocated memory is still 188.7MB. Free memory was 157.7MB in the beginning and 155.9MB in the end (delta: 1.7MB). Peak memory consumption was 6.8MB. 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! [2022-11-22 01:50:11,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49bfbcef-47fd-4221-b4d1-923377593140/bin/utaipan-g80aRyZoba/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