./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_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-mult-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R --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 Automizer --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 [2022-11-25 15:34:29,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:34:29,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:34:29,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:34:29,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:34:29,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:34:29,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:34:29,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:34:29,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:34:29,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:34:29,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:34:29,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:34:29,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:34:29,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:34:29,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:34:29,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:34:29,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:34:29,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:34:29,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:34:29,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:34:29,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:34:29,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:34:29,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:34:29,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:34:29,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:34:29,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:34:29,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:34:29,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:34:29,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:34:29,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:34:29,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:34:29,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:34:29,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:34:29,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:34:29,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:34:29,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:34:29,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:34:29,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:34:29,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:34:29,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:34:29,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:34:29,810 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 15:34:29,852 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:34:29,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:34:29,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:34:29,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:34:29,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:34:29,854 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:34:29,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:34:29,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:34:29,855 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:34:29,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:34:29,857 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:34:29,857 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:34:29,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:34:29,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:34:29,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:34:29,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:34:29,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:34:29,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:34:29,859 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:34:29,859 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:34:29,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:34:29,860 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:34:29,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:34:29,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:34:29,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:34:29,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:34:29,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:34:29,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:34:29,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:34:29,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:34:29,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:34:29,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:34:29,863 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:34:29,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:34:29,864 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:34:29,864 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:34:29,864 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faf759f4f4392e84815a483ab24e4497f918cd291dc733acf407d398902eccf [2022-11-25 15:34:30,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:34:30,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:34:30,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:34:30,235 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:34:30,236 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:34:30,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/popl20-mult-equiv.wvr.c [2022-11-25 15:34:33,321 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:34:33,558 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:34:33,559 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/sv-benchmarks/c/weaver/popl20-mult-equiv.wvr.c [2022-11-25 15:34:33,565 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/data/d2c74c99d/600566e4d0284c7aa72928fdc6c87c2e/FLAGd53234f76 [2022-11-25 15:34:33,580 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/data/d2c74c99d/600566e4d0284c7aa72928fdc6c87c2e [2022-11-25 15:34:33,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:34:33,584 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:34:33,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:34:33,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:34:33,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:34:33,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:33,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@319ad9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33, skipping insertion in model container [2022-11-25 15:34:33,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:33,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:34:33,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:34:33,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,815 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,820 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,824 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,845 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_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/sv-benchmarks/c/weaver/popl20-mult-equiv.wvr.c[2591,2604] [2022-11-25 15:34:33,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:34:33,866 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:34:33,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,898 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,899 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,908 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,909 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,912 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,917 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 15:34:33,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 15:34:33,930 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_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/sv-benchmarks/c/weaver/popl20-mult-equiv.wvr.c[2591,2604] [2022-11-25 15:34:33,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:34:33,952 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:34:33,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33 WrapperNode [2022-11-25 15:34:33,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:34:33,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:34:33,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:34:33,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:34:33,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:33,983 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:34,011 INFO L138 Inliner]: procedures = 22, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2022-11-25 15:34:34,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:34:34,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:34:34,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:34:34,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:34:34,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:34,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:34,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:34,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:34,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:34,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:34,040 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:34,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:34,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:34:34,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:34:34,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:34:34,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:34:34,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (1/1) ... [2022-11-25 15:34:34,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:34:34,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:34,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:34:34,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:34:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:34:34,128 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 15:34:34,128 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 15:34:34,129 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 15:34:34,130 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 15:34:34,130 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 15:34:34,131 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 15:34:34,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:34:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:34:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:34:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 15:34:34,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 15:34:34,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:34:34,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:34:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:34:34,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:34:34,136 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 15:34:34,281 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:34:34,283 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:34:34,610 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:34:34,665 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:34:34,672 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 15:34:34,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:34:34 BoogieIcfgContainer [2022-11-25 15:34:34,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:34:34,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:34:34,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:34:34,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:34:34,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:34:33" (1/3) ... [2022-11-25 15:34:34,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6773e92e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:34:34, skipping insertion in model container [2022-11-25 15:34:34,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:33" (2/3) ... [2022-11-25 15:34:34,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6773e92e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:34:34, skipping insertion in model container [2022-11-25 15:34:34,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:34:34" (3/3) ... [2022-11-25 15:34:34,695 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-equiv.wvr.c [2022-11-25 15:34:34,706 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 15:34:34,719 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:34:34,719 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-25 15:34:34,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6773e92e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:34:34, skipping insertion in model container [2022-11-25 15:34:34,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:34:34,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:34:34,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:34:34,724 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:34:34,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:34:34" (3/3) ... [2022-11-25 15:34:34,729 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 15:34:34,738 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-25 15:34:34,739 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-25 15:34:34,739 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-25 15:34:34,745 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-25 15:34:34,746 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 15:34:34,746 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 15:34:34,747 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 15:34:34,796 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:34:34,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:34:34,806 INFO L158 Benchmark]: Toolchain (without parser) took 1213.38ms. Allocated memory is still 188.7MB. Free memory was 147.0MB in the beginning and 109.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-25 15:34:34,807 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 132.1MB. Free memory was 74.3MB in the beginning and 74.1MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:34:34,808 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.57ms. Allocated memory is still 188.7MB. Free memory was 147.0MB in the beginning and 133.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 15:34:34,809 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.33ms. Allocated memory is still 188.7MB. Free memory was 133.8MB in the beginning and 132.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:34:34,810 INFO L158 Benchmark]: Boogie Preprocessor took 31.79ms. Allocated memory is still 188.7MB. Free memory was 132.3MB in the beginning and 131.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:34:34,811 INFO L158 Benchmark]: RCFGBuilder took 630.15ms. Allocated memory is still 188.7MB. Free memory was 131.1MB in the beginning and 114.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 15:34:34,811 INFO L158 Benchmark]: TraceAbstraction took 44.46ms. Allocated memory is still 188.7MB. Free memory was 114.4MB in the beginning and 112.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:34:34,812 INFO L158 Benchmark]: Witness Printer took 73.95ms. Allocated memory is still 188.7MB. Free memory was 112.1MB in the beginning and 109.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 15:34:34,814 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 132.1MB. Free memory was 74.3MB in the beginning and 74.1MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.57ms. Allocated memory is still 188.7MB. Free memory was 147.0MB in the beginning and 133.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.33ms. Allocated memory is still 188.7MB. Free memory was 133.8MB in the beginning and 132.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.79ms. Allocated memory is still 188.7MB. Free memory was 132.3MB in the beginning and 131.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 630.15ms. Allocated memory is still 188.7MB. Free memory was 131.1MB in the beginning and 114.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 44.46ms. Allocated memory is still 188.7MB. Free memory was 114.4MB in the beginning and 112.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 73.95ms. Allocated memory is still 188.7MB. Free memory was 112.1MB in the beginning and 109.2MB 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 15:34:34,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d16a61-01fb-4f5d-bc24-14d88351f7c4/bin/uautomizer-ZsLfNo2U6R/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