./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-figure3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-figure3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0 --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 8978d351a1e877bd44e157215d417b40c01c7c886849af3efe046b60ddaacc95 --- 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-e04fb08 [2022-11-16 20:06:49,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:06:49,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:06:49,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:06:49,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:06:49,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:06:49,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:06:49,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:06:49,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:06:49,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:06:49,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:06:49,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:06:49,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:06:49,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:06:49,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:06:49,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:06:49,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:06:49,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:06:49,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:06:49,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:06:49,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:06:49,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:06:49,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:06:49,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:06:49,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:06:49,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:06:49,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:06:49,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:06:49,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:06:49,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:06:49,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:06:49,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:06:49,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:06:49,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:06:49,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:06:49,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:06:49,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:06:49,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:06:49,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:06:49,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:06:49,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:06:49,085 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 20:06:49,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:06:49,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:06:49,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:06:49,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:06:49,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:06:49,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:06:49,135 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:06:49,135 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:06:49,135 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:06:49,135 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:06:49,135 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:06:49,136 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:06:49,136 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:06:49,136 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:06:49,136 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:06:49,136 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:06:49,137 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:06:49,137 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:06:49,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:06:49,142 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 20:06:49,142 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 20:06:49,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:06:49,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 20:06:49,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:06:49,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:06:49,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:06:49,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:06:49,146 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 20:06:49,147 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 20:06:49,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:06:49,147 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:06:49,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:06:49,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:06:49,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:06:49,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:06:49,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:06:49,149 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:06:49,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:06:49,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:06:49,150 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:06:49,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:06:49,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:06:49,162 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:06:49,162 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_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8978d351a1e877bd44e157215d417b40c01c7c886849af3efe046b60ddaacc95 [2022-11-16 20:06:49,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:06:49,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:06:49,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:06:49,460 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:06:49,460 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:06:49,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/weaver/popl20-figure3.wvr.c [2022-11-16 20:06:49,543 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/data/cd395040e/18b521a248a44d1193ee2997baf905e3/FLAGbee963b4a [2022-11-16 20:06:50,004 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:06:50,004 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/sv-benchmarks/c/weaver/popl20-figure3.wvr.c [2022-11-16 20:06:50,011 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/data/cd395040e/18b521a248a44d1193ee2997baf905e3/FLAGbee963b4a [2022-11-16 20:06:50,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/data/cd395040e/18b521a248a44d1193ee2997baf905e3 [2022-11-16 20:06:50,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:06:50,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:06:50,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:06:50,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:06:50,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:06:50,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:06:50" (1/1) ... [2022-11-16 20:06:50,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51158081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:50, skipping insertion in model container [2022-11-16 20:06:50,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:06:50" (1/1) ... [2022-11-16 20:06:50,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:06:50,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:06:50,626 WARN L229 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_3c2ffddf-c52a-46e9-9291-e0e35745dc84/sv-benchmarks/c/weaver/popl20-figure3.wvr.c[2121,2134] [2022-11-16 20:06:50,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:06:50,637 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:06:50,676 WARN L229 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_3c2ffddf-c52a-46e9-9291-e0e35745dc84/sv-benchmarks/c/weaver/popl20-figure3.wvr.c[2121,2134] [2022-11-16 20:06:50,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:06:50,698 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:06:50,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:50 WrapperNode [2022-11-16 20:06:50,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:06:50,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:06:50,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:06:50,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:06:50,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:50" (1/1) ... [2022-11-16 20:06:50,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:50" (1/1) ... [2022-11-16 20:06:50,747 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2022-11-16 20:06:50,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:06:50,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:06:50,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:06:50,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:06:50,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:50" (1/1) ... [2022-11-16 20:06:50,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:50" (1/1) ... [2022-11-16 20:06:50,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:50" (1/1) ... [2022-11-16 20:06:50,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:50" (1/1) ... [2022-11-16 20:06:50,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:50" (1/1) ... [2022-11-16 20:06:50,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:50" (1/1) ... [2022-11-16 20:06:50,789 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:50" (1/1) ... [2022-11-16 20:06:50,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:50" (1/1) ... [2022-11-16 20:06:50,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:06:50,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:06:50,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:06:50,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:06:50,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:50" (1/1) ... [2022-11-16 20:06:50,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:06:50,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:06:50,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:06:50,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:06:50,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:06:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 20:06:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 20:06:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 20:06:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 20:06:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:06:50,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 20:06:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 20:06:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 20:06:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 20:06:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:06:50,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:06:50,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 20:06:50,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 20:06:50,872 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 20:06:50,967 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:06:50,969 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:06:51,152 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:06:51,184 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:06:51,184 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 20:06:51,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:06:51 BoogieIcfgContainer [2022-11-16 20:06:51,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:06:51,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:06:51,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:06:51,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:06:51,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:06:50" (1/3) ... [2022-11-16 20:06:51,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8fd75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:06:51, skipping insertion in model container [2022-11-16 20:06:51,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:06:50" (2/3) ... [2022-11-16 20:06:51,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8fd75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:06:51, skipping insertion in model container [2022-11-16 20:06:51,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:06:51" (3/3) ... [2022-11-16 20:06:51,196 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-figure3.wvr.c [2022-11-16 20:06:51,205 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 20:06:51,214 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:06:51,215 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-16 20:06:51,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8fd75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:06:51, skipping insertion in model container [2022-11-16 20:06:51,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 20:06:51,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 20:06:51,218 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 20:06:51,218 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 20:06:51,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:06:51" (3/3) ... [2022-11-16 20:06:51,222 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 20:06:51,228 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 20:06:51,228 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 20:06:51,232 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-16 20:06:51,232 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 20:06:51,233 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 20:06:51,233 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 20:06:51,278 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 20:06:51,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 20:06:51,280 INFO L158 Benchmark]: Toolchain (without parser) took 891.02ms. Allocated memory is still 102.8MB. Free memory was 59.9MB in the beginning and 55.6MB in the end (delta: 4.3MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2022-11-16 20:06:51,281 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory was 76.2MB in the beginning and 76.1MB in the end (delta: 91.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:06:51,282 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.95ms. Allocated memory is still 102.8MB. Free memory was 59.7MB in the beginning and 77.9MB in the end (delta: -18.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 20:06:51,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.35ms. Allocated memory is still 102.8MB. Free memory was 77.9MB in the beginning and 76.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:06:51,283 INFO L158 Benchmark]: Boogie Preprocessor took 45.77ms. Allocated memory is still 102.8MB. Free memory was 76.3MB in the beginning and 75.3MB in the end (delta: 997.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:06:51,284 INFO L158 Benchmark]: RCFGBuilder took 391.99ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 61.1MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 20:06:51,285 INFO L158 Benchmark]: TraceAbstraction took 28.06ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 58.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:06:51,286 INFO L158 Benchmark]: Witness Printer took 61.00ms. Allocated memory is still 102.8MB. Free memory was 58.3MB in the beginning and 55.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:06:51,290 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory was 76.2MB in the beginning and 76.1MB in the end (delta: 91.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.95ms. Allocated memory is still 102.8MB. Free memory was 59.7MB in the beginning and 77.9MB in the end (delta: -18.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.35ms. Allocated memory is still 102.8MB. Free memory was 77.9MB in the beginning and 76.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.77ms. Allocated memory is still 102.8MB. Free memory was 76.3MB in the beginning and 75.3MB in the end (delta: 997.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 391.99ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 61.1MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 28.06ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 58.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 61.00ms. Allocated memory is still 102.8MB. Free memory was 58.3MB in the beginning and 55.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2022-11-16 20:06:51,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c2ffddf-c52a-46e9-9291-e0e35745dc84/bin/utaipan-Xvt2sAort0/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