./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-mult-equiv.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_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/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_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-mult-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/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_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/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 7faf759f4f4392e84815a483ab24e4497f918cd291dc733acf407d398902eccf --- 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 [2022-11-26 00:41:12,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:41:12,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:41:12,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:41:12,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:41:12,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:41:12,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:41:12,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:41:12,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:41:12,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:41:12,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:41:12,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:41:12,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:41:12,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:41:12,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:41:12,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:41:12,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:41:12,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:41:12,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:41:12,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:41:12,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:41:12,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:41:12,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:41:12,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:41:12,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:41:12,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:41:12,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:41:12,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:41:12,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:41:12,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:41:12,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:41:12,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:41:12,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:41:12,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:41:12,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:41:12,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:41:12,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:41:12,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:41:12,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:41:12,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:41:12,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:41:12,899 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 00:41:12,924 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:41:12,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:41:12,925 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:41:12,925 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:41:12,926 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:41:12,926 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:41:12,926 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:41:12,927 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:41:12,927 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:41:12,927 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:41:12,928 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:41:12,928 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:41:12,928 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:41:12,928 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:41:12,929 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:41:12,929 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:41:12,929 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:41:12,930 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:41:12,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:41:12,931 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:41:12,931 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:41:12,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:41:12,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:41:12,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:41:12,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:41:12,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:41:12,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:41:12,933 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:41:12,934 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:41:12,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:41:12,934 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:41:12,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:41:12,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:41:12,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:41:12,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:41:12,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:41:12,936 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:41:12,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:41:12,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:41:12,937 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:41:12,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:41:12,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:41:12,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:41:12,938 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_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faf759f4f4392e84815a483ab24e4497f918cd291dc733acf407d398902eccf [2022-11-26 00:41:13,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:41:13,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:41:13,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:41:13,276 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:41:13,277 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:41:13,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/weaver/popl20-mult-equiv.wvr.c [2022-11-26 00:41:16,329 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:41:16,592 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:41:16,593 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/sv-benchmarks/c/weaver/popl20-mult-equiv.wvr.c [2022-11-26 00:41:16,600 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/bin/utaipan-ByfvJB40ur/data/e85efa0d3/755404fc22cf4b6d8af07fbf80d1466b/FLAG28a7dd01c [2022-11-26 00:41:16,613 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/bin/utaipan-ByfvJB40ur/data/e85efa0d3/755404fc22cf4b6d8af07fbf80d1466b [2022-11-26 00:41:16,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:41:16,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:41:16,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:41:16,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:41:16,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:41:16,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:41:16" (1/1) ... [2022-11-26 00:41:16,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb0ab4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:16, skipping insertion in model container [2022-11-26 00:41:16,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:41:16" (1/1) ... [2022-11-26 00:41:16,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:41:16,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:41:16,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:41:16,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:41:16,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:41:16,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:41:16,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:41:16,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:41:16,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:41:16,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:41:16,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:41:16,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:41:16,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:41:16,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:41:16,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:41:16,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:41:16,824 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_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/sv-benchmarks/c/weaver/popl20-mult-equiv.wvr.c[2591,2604] [2022-11-26 00:41:16,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:41:16,834 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:41:16,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:41:16,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:41:16,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:41:16,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:41:16,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:41:16,854 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:41:16,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:41:16,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:41:16,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:41:16,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:41:16,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:41:16,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:41:16,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:41:16,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:41:16,864 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_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/sv-benchmarks/c/weaver/popl20-mult-equiv.wvr.c[2591,2604] [2022-11-26 00:41:16,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:41:16,880 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:41:16,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:16 WrapperNode [2022-11-26 00:41:16,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:41:16,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:41:16,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:41:16,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:41:16,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:16" (1/1) ... [2022-11-26 00:41:16,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:16" (1/1) ... [2022-11-26 00:41:16,922 INFO L138 Inliner]: procedures = 22, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2022-11-26 00:41:16,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:41:16,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:41:16,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:41:16,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:41:16,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:16" (1/1) ... [2022-11-26 00:41:16,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:16" (1/1) ... [2022-11-26 00:41:16,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:16" (1/1) ... [2022-11-26 00:41:16,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:16" (1/1) ... [2022-11-26 00:41:16,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:16" (1/1) ... [2022-11-26 00:41:16,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:16" (1/1) ... [2022-11-26 00:41:16,981 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:16" (1/1) ... [2022-11-26 00:41:16,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:16" (1/1) ... [2022-11-26 00:41:16,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:41:16,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:41:16,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:41:16,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:41:16,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:16" (1/1) ... [2022-11-26 00:41:16,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:41:17,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:41:17,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:41:17,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:41:17,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:41:17,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-26 00:41:17,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-26 00:41:17,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-26 00:41:17,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-26 00:41:17,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-26 00:41:17,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-26 00:41:17,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:41:17,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:41:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:41:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-26 00:41:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-26 00:41:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:41:17,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:41:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:41:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:41:17,078 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:41:17,252 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:41:17,254 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:41:17,504 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:41:17,562 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:41:17,562 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-26 00:41:17,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:41:17 BoogieIcfgContainer [2022-11-26 00:41:17,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:41:17,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:41:17,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:41:17,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:41:17,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:41:16" (1/3) ... [2022-11-26 00:41:17,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df74913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:41:17, skipping insertion in model container [2022-11-26 00:41:17,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:41:16" (2/3) ... [2022-11-26 00:41:17,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df74913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:41:17, skipping insertion in model container [2022-11-26 00:41:17,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:41:17" (3/3) ... [2022-11-26 00:41:17,575 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-equiv.wvr.c [2022-11-26 00:41:17,584 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:41:17,595 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:41:17,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-26 00:41:17,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df74913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:41:17, skipping insertion in model container [2022-11-26 00:41:17,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:41:17,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:41:17,598 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:41:17,598 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:41:17,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:41:17" (3/3) ... [2022-11-26 00:41:17,602 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:41:17,608 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-26 00:41:17,609 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-26 00:41:17,609 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-26 00:41:17,613 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-26 00:41:17,614 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-26 00:41:17,614 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-26 00:41:17,614 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:41:17,664 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:41:17,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:41:17,666 INFO L158 Benchmark]: Toolchain (without parser) took 1048.58ms. Allocated memory is still 186.6MB. Free memory was 156.1MB in the beginning and 117.3MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-26 00:41:17,667 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory was 75.6MB in the beginning and 75.5MB in the end (delta: 113.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:41:17,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.57ms. Allocated memory is still 186.6MB. Free memory was 155.2MB in the beginning and 142.7MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:41:17,668 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.81ms. Allocated memory is still 186.6MB. Free memory was 142.7MB in the beginning and 141.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:41:17,668 INFO L158 Benchmark]: Boogie Preprocessor took 59.47ms. Allocated memory is still 186.6MB. Free memory was 141.6MB in the beginning and 139.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:41:17,669 INFO L158 Benchmark]: RCFGBuilder took 580.04ms. Allocated memory is still 186.6MB. Free memory was 139.5MB in the beginning and 122.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:41:17,669 INFO L158 Benchmark]: TraceAbstraction took 29.25ms. Allocated memory is still 186.6MB. Free memory was 121.8MB in the beginning and 119.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:41:17,670 INFO L158 Benchmark]: Witness Printer took 66.52ms. Allocated memory is still 186.6MB. Free memory was 119.7MB in the beginning and 117.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:41:17,673 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory was 75.6MB in the beginning and 75.5MB in the end (delta: 113.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.57ms. Allocated memory is still 186.6MB. Free memory was 155.2MB in the beginning and 142.7MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.81ms. Allocated memory is still 186.6MB. Free memory was 142.7MB in the beginning and 141.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.47ms. Allocated memory is still 186.6MB. Free memory was 141.6MB in the beginning and 139.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 580.04ms. Allocated memory is still 186.6MB. Free memory was 139.5MB in the beginning and 122.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 29.25ms. Allocated memory is still 186.6MB. Free memory was 121.8MB in the beginning and 119.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 66.52ms. Allocated memory is still 186.6MB. Free memory was 119.7MB in the beginning and 117.4MB in the end (delta: 2.3MB). 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! [2022-11-26 00:41:17,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b7d4776-7896-4855-b0c4-b1d46ff4b9b0/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