./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-sre-symm.wvr.c --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_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-sre-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur --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 c361ebc03d879240d418527d643e8a7b3c7ac084ceb3e66857b21a687a1c7f90 --- 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 23:21:19,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:21:19,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:21:19,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:21:19,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:21:19,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:21:19,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:21:19,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:21:19,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:21:19,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:21:19,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:21:19,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:21:19,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:21:19,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:21:19,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:21:19,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:21:19,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:21:19,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:21:19,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:21:19,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:21:19,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:21:19,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:21:19,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:21:19,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:21:19,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:21:19,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:21:19,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:21:19,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:21:19,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:21:19,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:21:19,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:21:19,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:21:19,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:21:19,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:21:19,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:21:19,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:21:19,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:21:19,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:21:19,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:21:19,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:21:19,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:21:19,226 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 23:21:19,260 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:21:19,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:21:19,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:21:19,261 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:21:19,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:21:19,262 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:21:19,262 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:21:19,262 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:21:19,263 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:21:19,263 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:21:19,264 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:21:19,264 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:21:19,264 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:21:19,264 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:21:19,265 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:21:19,265 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:21:19,265 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:21:19,265 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:21:19,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:21:19,266 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:21:19,266 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:21:19,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:21:19,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:21:19,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:21:19,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:21:19,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:21:19,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:21:19,268 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:21:19,268 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:21:19,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:21:19,269 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:21:19,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:21:19,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:21:19,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:21:19,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:21:19,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:21:19,271 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:21:19,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:21:19,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:21:19,271 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:21:19,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:21:19,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:21:19,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:21:19,272 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_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c361ebc03d879240d418527d643e8a7b3c7ac084ceb3e66857b21a687a1c7f90 [2022-11-25 23:21:19,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:21:19,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:21:19,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:21:19,622 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:21:19,623 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:21:19,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/weaver/chl-sre-symm.wvr.c [2022-11-25 23:21:22,658 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:21:22,881 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:21:22,885 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/sv-benchmarks/c/weaver/chl-sre-symm.wvr.c [2022-11-25 23:21:22,890 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/data/1b499bc7a/bba9ab41594045e59e78445fac60e3f4/FLAG137f89ecb [2022-11-25 23:21:22,905 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/data/1b499bc7a/bba9ab41594045e59e78445fac60e3f4 [2022-11-25 23:21:22,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:21:22,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:21:22,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:21:22,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:21:22,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:21:22,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:21:22" (1/1) ... [2022-11-25 23:21:22,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@121c0f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:22, skipping insertion in model container [2022-11-25 23:21:22,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:21:22" (1/1) ... [2022-11-25 23:21:22,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:21:22,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:21:23,180 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_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/sv-benchmarks/c/weaver/chl-sre-symm.wvr.c[2133,2146] [2022-11-25 23:21:23,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:21:23,192 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:21:23,228 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_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/sv-benchmarks/c/weaver/chl-sre-symm.wvr.c[2133,2146] [2022-11-25 23:21:23,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:21:23,243 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:21:23,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:23 WrapperNode [2022-11-25 23:21:23,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:21:23,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:21:23,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:21:23,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:21:23,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:23" (1/1) ... [2022-11-25 23:21:23,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:23" (1/1) ... [2022-11-25 23:21:23,300 INFO L138 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-11-25 23:21:23,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:21:23,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:21:23,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:21:23,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:21:23,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:23" (1/1) ... [2022-11-25 23:21:23,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:23" (1/1) ... [2022-11-25 23:21:23,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:23" (1/1) ... [2022-11-25 23:21:23,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:23" (1/1) ... [2022-11-25 23:21:23,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:23" (1/1) ... [2022-11-25 23:21:23,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:23" (1/1) ... [2022-11-25 23:21:23,340 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:23" (1/1) ... [2022-11-25 23:21:23,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:23" (1/1) ... [2022-11-25 23:21:23,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:21:23,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:21:23,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:21:23,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:21:23,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:23" (1/1) ... [2022-11-25 23:21:23,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:21:23,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:21:23,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:21:23,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:21:23,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:21:23,427 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 23:21:23,427 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 23:21:23,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 23:21:23,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 23:21:23,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:21:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:21:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:21:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:21:23,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:21:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:21:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:21:23,431 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 23:21:23,556 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:21:23,559 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:21:23,757 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:21:23,764 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:21:23,764 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:21:23,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:21:23 BoogieIcfgContainer [2022-11-25 23:21:23,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:21:23,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:21:23,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:21:23,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:21:23,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:21:22" (1/3) ... [2022-11-25 23:21:23,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116adee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:21:23, skipping insertion in model container [2022-11-25 23:21:23,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:21:23" (2/3) ... [2022-11-25 23:21:23,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116adee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:21:23, skipping insertion in model container [2022-11-25 23:21:23,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:21:23" (3/3) ... [2022-11-25 23:21:23,776 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-symm.wvr.c [2022-11-25 23:21:23,785 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 23:21:23,809 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:21:23,809 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-25 23:21:23,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116adee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:21:23, skipping insertion in model container [2022-11-25 23:21:23,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:21:23,820 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:21:23,820 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:21:23,821 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:21:23,822 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:21:23" (3/3) ... [2022-11-25 23:21:23,826 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:21:23,835 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-25 23:21:23,835 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-25 23:21:23,839 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-25 23:21:23,840 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 23:21:23,840 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 23:21:23,840 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 23:21:23,903 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:21:23,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:21:23,913 INFO L158 Benchmark]: Toolchain (without parser) took 1002.22ms. Allocated memory is still 182.5MB. Free memory was 146.7MB in the beginning and 126.4MB in the end (delta: 20.3MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2022-11-25 23:21:23,913 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 127.9MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:21:23,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.45ms. Allocated memory is still 182.5MB. Free memory was 146.7MB in the beginning and 148.2MB in the end (delta: -1.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 23:21:23,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.96ms. Allocated memory is still 182.5MB. Free memory was 148.2MB in the beginning and 146.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:21:23,916 INFO L158 Benchmark]: Boogie Preprocessor took 47.37ms. Allocated memory is still 182.5MB. Free memory was 146.4MB in the beginning and 145.4MB in the end (delta: 982.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:21:23,918 INFO L158 Benchmark]: RCFGBuilder took 417.34ms. Allocated memory is still 182.5MB. Free memory was 145.4MB in the beginning and 132.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:21:23,919 INFO L158 Benchmark]: TraceAbstraction took 50.98ms. Allocated memory is still 182.5MB. Free memory was 132.1MB in the beginning and 129.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:21:23,920 INFO L158 Benchmark]: Witness Printer took 90.83ms. Allocated memory is still 182.5MB. Free memory was 129.3MB in the beginning and 126.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:21:23,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 127.9MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.45ms. Allocated memory is still 182.5MB. Free memory was 146.7MB in the beginning and 148.2MB in the end (delta: -1.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.96ms. Allocated memory is still 182.5MB. Free memory was 148.2MB in the beginning and 146.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.37ms. Allocated memory is still 182.5MB. Free memory was 146.4MB in the beginning and 145.4MB in the end (delta: 982.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 417.34ms. Allocated memory is still 182.5MB. Free memory was 145.4MB in the beginning and 132.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 50.98ms. Allocated memory is still 182.5MB. Free memory was 132.1MB in the beginning and 129.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 90.83ms. Allocated memory is still 182.5MB. Free memory was 129.3MB in the beginning and 126.4MB in the end (delta: 2.9MB). 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 23:21:23,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb16fe8-b216-4d7e-ad6b-9fb54a5fb29b/bin/utaipan-ByfvJB40ur/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