./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 739dc04b5c5aa67083a96cc98ccb84e17de2a97ca235c28aa84e8c99a10b0a9e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:50:09,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:50:09,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:50:09,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:50:09,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:50:09,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:50:09,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:50:09,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:50:09,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:50:09,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:50:09,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:50:09,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:50:09,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:50:09,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:50:09,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:50:09,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:50:09,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:50:09,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:50:09,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:50:09,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:50:09,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:50:09,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:50:09,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:50:09,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:50:09,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:50:09,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:50:09,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:50:09,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:50:09,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:50:09,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:50:09,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:50:09,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:50:09,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:50:09,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:50:09,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:50:09,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:50:09,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:50:09,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:50:09,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:50:09,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:50:09,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:50:09,985 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:50:10,011 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:50:10,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:50:10,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:50:10,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:50:10,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:50:10,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:50:10,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:50:10,013 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:50:10,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:50:10,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:50:10,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:50:10,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:50:10,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:50:10,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:50:10,015 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:50:10,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:50:10,015 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:50:10,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:50:10,016 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:50:10,016 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:50:10,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:50:10,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:50:10,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:50:10,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:50:10,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:50:10,017 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:50:10,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:50:10,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:50:10,017 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_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 739dc04b5c5aa67083a96cc98ccb84e17de2a97ca235c28aa84e8c99a10b0a9e [2021-11-23 15:50:10,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:50:10,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:50:10,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:50:10,316 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:50:10,317 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:50:10,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2021-11-23 15:50:10,423 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/data/9973b5d0f/9e00f0df1518418494e599775ac9558a/FLAG14a3ea586 [2021-11-23 15:50:10,880 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:50:10,881 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2021-11-23 15:50:10,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/data/9973b5d0f/9e00f0df1518418494e599775ac9558a/FLAG14a3ea586 [2021-11-23 15:50:11,272 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/data/9973b5d0f/9e00f0df1518418494e599775ac9558a [2021-11-23 15:50:11,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:50:11,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:50:11,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:50:11,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:50:11,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:50:11,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:50:11" (1/1) ... [2021-11-23 15:50:11,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b602805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:11, skipping insertion in model container [2021-11-23 15:50:11,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:50:11" (1/1) ... [2021-11-23 15:50:11,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:50:11,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:50:11,572 WARN L230 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_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c[2507,2520] [2021-11-23 15:50:11,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:50:11,593 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:50:11,648 WARN L230 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_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c[2507,2520] [2021-11-23 15:50:11,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:50:11,674 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:50:11,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:11 WrapperNode [2021-11-23 15:50:11,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:50:11,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:50:11,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:50:11,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:50:11,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:11" (1/1) ... [2021-11-23 15:50:11,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:11" (1/1) ... [2021-11-23 15:50:11,740 INFO L137 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 79 [2021-11-23 15:50:11,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:50:11,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:50:11,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:50:11,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:50:11,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:11" (1/1) ... [2021-11-23 15:50:11,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:11" (1/1) ... [2021-11-23 15:50:11,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:11" (1/1) ... [2021-11-23 15:50:11,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:11" (1/1) ... [2021-11-23 15:50:11,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:11" (1/1) ... [2021-11-23 15:50:11,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:11" (1/1) ... [2021-11-23 15:50:11,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:11" (1/1) ... [2021-11-23 15:50:11,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:50:11,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:50:11,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:50:11,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:50:11,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:11" (1/1) ... [2021-11-23 15:50:11,812 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:50:11,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:50:11,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:50:11,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:50:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:50:11,893 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 15:50:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 15:50:11,894 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 15:50:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 15:50:11,894 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 15:50:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 15:50:11,895 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-23 15:50:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-23 15:50:11,895 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:50:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:50:11,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:50:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:50:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:50:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 15:50:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 15:50:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:50:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:50:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:50:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:50:11,899 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 15:50:11,986 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:50:11,996 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:50:12,305 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:50:12,351 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:50:12,356 INFO L158 Benchmark]: Toolchain (without parser) took 1078.93ms. Allocated memory is still 109.1MB. Free memory was 67.0MB in the beginning and 62.8MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:50:12,357 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 109.1MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:50:12,358 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.93ms. Allocated memory is still 109.1MB. Free memory was 66.7MB in the beginning and 81.6MB in the end (delta: -14.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:50:12,359 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.89ms. Allocated memory is still 109.1MB. Free memory was 81.6MB in the beginning and 80.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:50:12,360 INFO L158 Benchmark]: Boogie Preprocessor took 56.20ms. Allocated memory is still 109.1MB. Free memory was 80.1MB in the beginning and 78.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:50:12,362 INFO L158 Benchmark]: RCFGBuilder took 555.59ms. Allocated memory is still 109.1MB. Free memory was 78.7MB in the beginning and 63.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 15:50:12,365 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 109.1MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.93ms. Allocated memory is still 109.1MB. Free memory was 66.7MB in the beginning and 81.6MB in the end (delta: -14.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.89ms. Allocated memory is still 109.1MB. Free memory was 81.6MB in the beginning and 80.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.20ms. Allocated memory is still 109.1MB. Free memory was 80.1MB in the beginning and 78.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 555.59ms. Allocated memory is still 109.1MB. Free memory was 78.7MB in the beginning and 63.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:50:12,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 739dc04b5c5aa67083a96cc98ccb84e17de2a97ca235c28aa84e8c99a10b0a9e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:50:14,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:50:14,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:50:14,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:50:14,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:50:14,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:50:14,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:50:14,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:50:14,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:50:14,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:50:14,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:50:14,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:50:14,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:50:15,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:50:15,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:50:15,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:50:15,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:50:15,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:50:15,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:50:15,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:50:15,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:50:15,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:50:15,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:50:15,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:50:15,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:50:15,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:50:15,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:50:15,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:50:15,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:50:15,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:50:15,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:50:15,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:50:15,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:50:15,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:50:15,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:50:15,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:50:15,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:50:15,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:50:15,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:50:15,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:50:15,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:50:15,075 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:50:15,124 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:50:15,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:50:15,126 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:50:15,127 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:50:15,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:50:15,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:50:15,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:50:15,129 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:50:15,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:50:15,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:50:15,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:50:15,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:50:15,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:50:15,132 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:50:15,132 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:50:15,133 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:50:15,133 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:50:15,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:50:15,133 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:50:15,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:50:15,134 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:50:15,134 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:50:15,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:50:15,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:50:15,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:50:15,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:50:15,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:50:15,136 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:50:15,136 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:50:15,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:50:15,136 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:50:15,137 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:50:15,137 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 739dc04b5c5aa67083a96cc98ccb84e17de2a97ca235c28aa84e8c99a10b0a9e [2021-11-23 15:50:15,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:50:15,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:50:15,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:50:15,584 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:50:15,585 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:50:15,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2021-11-23 15:50:15,689 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/data/ebd81d09c/81047a460ac7449cbf79b2e0cd83e9d3/FLAGa6f8b0776 [2021-11-23 15:50:16,213 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:50:16,216 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2021-11-23 15:50:16,225 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/data/ebd81d09c/81047a460ac7449cbf79b2e0cd83e9d3/FLAGa6f8b0776 [2021-11-23 15:50:16,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/data/ebd81d09c/81047a460ac7449cbf79b2e0cd83e9d3 [2021-11-23 15:50:16,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:50:16,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:50:16,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:50:16,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:50:16,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:50:16,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:50:16" (1/1) ... [2021-11-23 15:50:16,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9f684e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:16, skipping insertion in model container [2021-11-23 15:50:16,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:50:16" (1/1) ... [2021-11-23 15:50:16,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:50:16,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:50:16,758 WARN L230 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_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c[2507,2520] [2021-11-23 15:50:16,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:50:16,799 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:50:16,860 WARN L230 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_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c[2507,2520] [2021-11-23 15:50:16,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:50:16,877 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:50:16,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:16 WrapperNode [2021-11-23 15:50:16,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:50:16,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:50:16,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:50:16,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:50:16,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:16" (1/1) ... [2021-11-23 15:50:16,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:16" (1/1) ... [2021-11-23 15:50:16,919 INFO L137 Inliner]: procedures = 25, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2021-11-23 15:50:16,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:50:16,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:50:16,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:50:16,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:50:16,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:16" (1/1) ... [2021-11-23 15:50:16,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:16" (1/1) ... [2021-11-23 15:50:16,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:16" (1/1) ... [2021-11-23 15:50:16,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:16" (1/1) ... [2021-11-23 15:50:16,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:16" (1/1) ... [2021-11-23 15:50:16,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:16" (1/1) ... [2021-11-23 15:50:16,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:16" (1/1) ... [2021-11-23 15:50:16,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:50:16,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:50:16,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:50:16,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:50:16,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:16" (1/1) ... [2021-11-23 15:50:16,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:50:16,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:50:16,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:50:17,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:50:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:50:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-23 15:50:17,043 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-23 15:50:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-23 15:50:17,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-23 15:50:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-23 15:50:17,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-23 15:50:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:50:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-23 15:50:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-23 15:50:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:50:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:50:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:50:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-23 15:50:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-23 15:50:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:50:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:50:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:50:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:50:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:50:17,049 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 15:50:17,168 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:50:17,170 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:50:17,496 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:50:17,622 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:50:17,631 INFO L158 Benchmark]: Toolchain (without parser) took 1095.60ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 44.5MB in the beginning and 62.0MB in the end (delta: -17.4MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2021-11-23 15:50:17,632 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 65.0MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:50:17,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.83ms. Allocated memory is still 65.0MB. Free memory was 44.3MB in the beginning and 47.0MB in the end (delta: -2.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 15:50:17,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.15ms. Allocated memory is still 65.0MB. Free memory was 46.8MB in the beginning and 45.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:50:17,637 INFO L158 Benchmark]: Boogie Preprocessor took 37.89ms. Allocated memory is still 65.0MB. Free memory was 45.2MB in the beginning and 43.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:50:17,638 INFO L158 Benchmark]: RCFGBuilder took 668.16ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 43.8MB in the beginning and 62.0MB in the end (delta: -18.2MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2021-11-23 15:50:17,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 65.0MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.83ms. Allocated memory is still 65.0MB. Free memory was 44.3MB in the beginning and 47.0MB in the end (delta: -2.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.15ms. Allocated memory is still 65.0MB. Free memory was 46.8MB in the beginning and 45.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.89ms. Allocated memory is still 65.0MB. Free memory was 45.2MB in the beginning and 43.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 668.16ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 43.8MB in the beginning and 62.0MB in the end (delta: -18.2MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:50:17,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e2a45b-3fb0-42d0-a76e-4d220f65b4f5/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable