./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89f85a9c071b9d85a8a89a1542b8738a051beeaf8ef3f8b389c5a92dd50b70df --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:22:50,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:22:50,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:22:50,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:22:50,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:22:50,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:22:50,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:22:50,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:22:50,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:22:50,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:22:50,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:22:50,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:22:50,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:22:50,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:22:50,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:22:50,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:22:50,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:22:50,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:22:50,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:22:50,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:22:50,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:22:50,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:22:50,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:22:50,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:22:50,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:22:50,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:22:50,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:22:50,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:22:51,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:22:51,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:22:51,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:22:51,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:22:51,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:22:51,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:22:51,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:22:51,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:22:51,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:22:51,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:22:51,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:22:51,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:22:51,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:22:51,011 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:22:51,056 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:22:51,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:22:51,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:22:51,058 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:22:51,058 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:22:51,059 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:22:51,059 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:22:51,059 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:22:51,059 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:22:51,059 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:22:51,066 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:22:51,067 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:22:51,067 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:22:51,067 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:22:51,068 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:22:51,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:22:51,069 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:22:51,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:22:51,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:22:51,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:22:51,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:22:51,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:22:51,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:22:51,070 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:22:51,070 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:22:51,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:22:51,071 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:22:51,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:22:51,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:22:51,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:22:51,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:22:51,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:22:51,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:22:51,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:22:51,074 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:22:51,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:22:51,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:22:51,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:22:51,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:22:51,075 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89f85a9c071b9d85a8a89a1542b8738a051beeaf8ef3f8b389c5a92dd50b70df [2021-11-03 04:22:51,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:22:51,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:22:51,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:22:51,377 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:22:51,378 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:22:51,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c [2021-11-03 04:22:51,447 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/data/2dbb20e01/faba6b58299047cb92c2c6b6679d0277/FLAGc18b2af69 [2021-11-03 04:22:51,912 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:22:51,912 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c [2021-11-03 04:22:51,924 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/data/2dbb20e01/faba6b58299047cb92c2c6b6679d0277/FLAGc18b2af69 [2021-11-03 04:22:52,297 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/data/2dbb20e01/faba6b58299047cb92c2c6b6679d0277 [2021-11-03 04:22:52,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:22:52,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:22:52,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:22:52,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:22:52,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:22:52,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:22:52" (1/1) ... [2021-11-03 04:22:52,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a57395a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:52, skipping insertion in model container [2021-11-03 04:22:52,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:22:52" (1/1) ... [2021-11-03 04:22:52,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:22:52,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:22:52,579 WARN L228 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_dff25379-b0db-4d0c-9ca3-824de21ee80d/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c[2696,2709] [2021-11-03 04:22:52,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:22:52,597 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 04:22:52,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2828cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:52, skipping insertion in model container [2021-11-03 04:22:52,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:22:52,599 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:22:52,601 INFO L168 Benchmark]: Toolchain (without parser) took 295.90 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 40.8 MB in the beginning and 79.6 MB in the end (delta: -38.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:22:52,602 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory is still 57.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:22:52,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.40 ms. Allocated memory is still 107.0 MB. Free memory was 86.8 MB in the beginning and 79.6 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:22:52,605 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory is still 57.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.40 ms. Allocated memory is still 107.0 MB. Free memory was 86.8 MB in the beginning and 79.6 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 107]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89f85a9c071b9d85a8a89a1542b8738a051beeaf8ef3f8b389c5a92dd50b70df --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:22:54,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:22:54,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:22:55,037 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:22:55,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:22:55,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:22:55,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:22:55,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:22:55,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:22:55,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:22:55,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:22:55,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:22:55,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:22:55,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:22:55,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:22:55,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:22:55,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:22:55,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:22:55,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:22:55,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:22:55,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:22:55,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:22:55,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:22:55,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:22:55,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:22:55,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:22:55,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:22:55,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:22:55,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:22:55,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:22:55,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:22:55,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:22:55,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:22:55,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:22:55,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:22:55,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:22:55,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:22:55,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:22:55,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:22:55,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:22:55,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:22:55,088 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 04:22:55,118 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:22:55,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:22:55,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:22:55,119 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:22:55,120 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:22:55,120 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:22:55,120 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:22:55,120 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:22:55,121 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:22:55,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:22:55,122 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:22:55,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:22:55,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:22:55,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:22:55,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:22:55,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:22:55,123 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:22:55,123 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:22:55,124 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:22:55,124 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:22:55,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:22:55,124 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:22:55,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:22:55,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:22:55,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:22:55,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:22:55,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:22:55,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:22:55,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:22:55,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:22:55,127 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:22:55,127 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:22:55,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:22:55,127 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:22:55,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:22:55,128 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_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89f85a9c071b9d85a8a89a1542b8738a051beeaf8ef3f8b389c5a92dd50b70df [2021-11-03 04:22:55,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:22:55,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:22:55,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:22:55,554 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:22:55,554 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:22:55,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c [2021-11-03 04:22:55,636 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/data/a067f4b5a/b401f2b2fe134a0cbaacb7dfc574bd43/FLAG54ff6cd0f [2021-11-03 04:22:56,243 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:22:56,243 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c [2021-11-03 04:22:56,252 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/data/a067f4b5a/b401f2b2fe134a0cbaacb7dfc574bd43/FLAG54ff6cd0f [2021-11-03 04:22:56,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/data/a067f4b5a/b401f2b2fe134a0cbaacb7dfc574bd43 [2021-11-03 04:22:56,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:22:56,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:22:56,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:22:56,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:22:56,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:22:56,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:22:56" (1/1) ... [2021-11-03 04:22:56,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322f1ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:56, skipping insertion in model container [2021-11-03 04:22:56,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:22:56" (1/1) ... [2021-11-03 04:22:56,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:22:56,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:22:56,911 WARN L228 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_dff25379-b0db-4d0c-9ca3-824de21ee80d/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c[2696,2709] [2021-11-03 04:22:56,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:22:56,954 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:22:56,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:22:56,994 WARN L228 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_dff25379-b0db-4d0c-9ca3-824de21ee80d/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c[2696,2709] [2021-11-03 04:22:57,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:22:57,010 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:22:57,052 WARN L228 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_dff25379-b0db-4d0c-9ca3-824de21ee80d/sv-benchmarks/c/weaver/popl20-queue-add-2.wvr.c[2696,2709] [2021-11-03 04:22:57,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:22:57,078 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:22:57,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:57 WrapperNode [2021-11-03 04:22:57,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:22:57,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:22:57,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:22:57,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:22:57,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:57" (1/1) ... [2021-11-03 04:22:57,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:57" (1/1) ... [2021-11-03 04:22:57,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:22:57,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:22:57,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:22:57,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:22:57,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:57" (1/1) ... [2021-11-03 04:22:57,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:57" (1/1) ... [2021-11-03 04:22:57,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:57" (1/1) ... [2021-11-03 04:22:57,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:57" (1/1) ... [2021-11-03 04:22:57,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:57" (1/1) ... [2021-11-03 04:22:57,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:57" (1/1) ... [2021-11-03 04:22:57,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:57" (1/1) ... [2021-11-03 04:22:57,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:22:57,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:22:57,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:22:57,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:22:57,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:57" (1/1) ... [2021-11-03 04:22:57,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:22:57,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:22:57,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:22:57,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:22:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-03 04:22:57,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-03 04:22:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-03 04:22:57,274 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-03 04:22:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:22:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:22:57,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-03 04:22:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-03 04:22:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:22:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:22:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:22:57,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:22:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:22:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:22:57,281 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-03 04:22:58,199 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:22:58,199 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2021-11-03 04:22:58,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:22:58 BoogieIcfgContainer [2021-11-03 04:22:58,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:22:58,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:22:58,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:22:58,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:22:58,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:22:56" (1/3) ... [2021-11-03 04:22:58,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f20b0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:22:58, skipping insertion in model container [2021-11-03 04:22:58,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:22:57" (2/3) ... [2021-11-03 04:22:58,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f20b0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:22:58, skipping insertion in model container [2021-11-03 04:22:58,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:22:58" (3/3) ... [2021-11-03 04:22:58,209 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-queue-add-2.wvr.c [2021-11-03 04:22:58,214 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-03 04:22:58,215 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:22:58,215 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 04:22:58,215 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-03 04:22:58,244 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,244 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,245 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,245 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,245 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,245 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,246 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,246 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,246 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,246 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,246 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,247 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,247 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,247 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,247 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,247 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,248 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,248 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,248 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,248 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,248 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,249 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,249 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,249 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,249 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,250 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,250 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,250 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,250 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,250 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,251 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,251 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,251 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,251 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,251 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,252 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,252 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,252 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,252 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,253 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,253 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,253 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,253 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,253 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,254 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,254 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,254 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,254 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,254 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,254 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,255 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,255 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,255 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,255 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,256 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,256 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,256 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,256 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,259 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,259 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,260 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,260 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,260 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,260 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,260 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,261 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,261 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,261 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,263 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,263 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,263 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,264 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,264 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,264 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,264 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:22:58,269 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-03 04:22:58,313 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:22:58,320 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:22:58,320 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-03 04:22:58,334 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 04:22:58,344 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 118 transitions, 252 flow [2021-11-03 04:22:58,347 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 118 transitions, 252 flow [2021-11-03 04:22:58,349 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 118 transitions, 252 flow [2021-11-03 04:22:58,398 INFO L129 PetriNetUnfolder]: 11/116 cut-off events. [2021-11-03 04:22:58,398 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-03 04:22:58,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 116 events. 11/116 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 69 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 84. Up to 3 conditions per place. [2021-11-03 04:22:58,404 INFO L116 LiptonReduction]: Number of co-enabled transitions 538 [2021-11-03 04:23:11,222 INFO L131 LiptonReduction]: Checked pairs total: 679 [2021-11-03 04:23:11,222 INFO L133 LiptonReduction]: Total number of compositions: 124 [2021-11-03 04:23:11,232 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 20 transitions, 56 flow [2021-11-03 04:23:11,244 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 35 states, 34 states have (on average 2.2058823529411766) internal successors, (75), 34 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:11,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 34 states have (on average 2.2058823529411766) internal successors, (75), 34 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:11,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 04:23:11,252 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:23:11,253 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:23:11,254 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-03 04:23:11,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:23:11,260 INFO L85 PathProgramCache]: Analyzing trace with hash -262135814, now seen corresponding path program 1 times [2021-11-03 04:23:11,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:23:11,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350915031] [2021-11-03 04:23:11,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:11,275 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:23:11,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:23:11,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:23:11,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:23:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:23:11,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:23:11,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:23:11,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:23:11,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:23:11,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:23:11,635 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:23:11,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350915031] [2021-11-03 04:23:11,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350915031] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:23:11,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:23:11,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-03 04:23:11,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496533107] [2021-11-03 04:23:11,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:23:11,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:23:11,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:23:11,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:23:11,660 INFO L87 Difference]: Start difference. First operand has 35 states, 34 states have (on average 2.2058823529411766) internal successors, (75), 34 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:11,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:23:11,696 INFO L93 Difference]: Finished difference Result 15 states and 22 transitions. [2021-11-03 04:23:11,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:23:11,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-03 04:23:11,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:23:11,705 INFO L225 Difference]: With dead ends: 15 [2021-11-03 04:23:11,706 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 04:23:11,707 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:23:11,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 04:23:11,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 04:23:11,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:11,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 04:23:11,731 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-11-03 04:23:11,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:23:11,731 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 04:23:11,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:11,732 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 04:23:11,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 04:23:11,735 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:23:11,736 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-03 04:23:11,736 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-03 04:23:11,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:23:11,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:23:11,952 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-03 04:23:11,954 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-03 04:23:11,954 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:23:11,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:23:11 BasicIcfg [2021-11-03 04:23:11,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:23:11,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:23:11,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:23:11,957 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:23:11,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:22:58" (3/4) ... [2021-11-03 04:23:11,960 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 04:23:11,966 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-11-03 04:23:11,967 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-11-03 04:23:11,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-03 04:23:11,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-03 04:23:11,973 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 04:23:11,973 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 04:23:12,024 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 04:23:12,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:23:12,026 INFO L168 Benchmark]: Toolchain (without parser) took 15436.22 ms. Allocated memory was 62.9 MB in the beginning and 111.1 MB in the end (delta: 48.2 MB). Free memory was 43.1 MB in the beginning and 69.9 MB in the end (delta: -26.8 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:23:12,027 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:23:12,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.90 ms. Allocated memory is still 62.9 MB. Free memory was 42.9 MB in the beginning and 43.1 MB in the end (delta: -149.4 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:23:12,028 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.99 ms. Allocated memory is still 62.9 MB. Free memory was 42.9 MB in the beginning and 41.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:23:12,035 INFO L168 Benchmark]: Boogie Preprocessor took 41.54 ms. Allocated memory is still 62.9 MB. Free memory was 41.0 MB in the beginning and 39.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:23:12,035 INFO L168 Benchmark]: RCFGBuilder took 1031.38 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 39.4 MB in the beginning and 60.9 MB in the end (delta: -21.5 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:23:12,036 INFO L168 Benchmark]: TraceAbstraction took 13752.30 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 60.4 MB in the beginning and 73.6 MB in the end (delta: -13.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:23:12,037 INFO L168 Benchmark]: Witness Printer took 68.34 ms. Allocated memory is still 111.1 MB. Free memory was 73.6 MB in the beginning and 69.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:23:12,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 487.90 ms. Allocated memory is still 62.9 MB. Free memory was 42.9 MB in the beginning and 43.1 MB in the end (delta: -149.4 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.99 ms. Allocated memory is still 62.9 MB. Free memory was 42.9 MB in the beginning and 41.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.54 ms. Allocated memory is still 62.9 MB. Free memory was 41.0 MB in the beginning and 39.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1031.38 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 39.4 MB in the beginning and 60.9 MB in the end (delta: -21.5 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13752.30 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 60.4 MB in the beginning and 73.6 MB in the end (delta: -13.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Witness Printer took 68.34 ms. Allocated memory is still 111.1 MB. Free memory was 73.6 MB in the beginning and 69.9 MB in the end (delta: 3.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.8s, 114 PlacesBefore, 24 PlacesAfterwards, 118 TransitionsBefore, 20 TransitionsAfterwards, 538 CoEnabledTransitionPairs, 7 FixpointIterations, 79 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 7 ConcurrentYvCompositions, 8 ChoiceCompositions, 124 TotalNumberOfCompositions, 679 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 585, positive: 560, positive conditional: 0, positive unconditional: 560, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 377, positive: 368, positive conditional: 0, positive unconditional: 368, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 377, positive: 366, positive conditional: 0, positive unconditional: 366, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 267, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 210, negative conditional: 0, negative unconditional: 210, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 585, positive: 192, positive conditional: 0, positive unconditional: 192, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 377, unknown conditional: 0, unknown unconditional: 377] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 98]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 128 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 13.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.9s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 5 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 6 NumberOfNonLiveVariables, 83 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-03 04:23:12,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dff25379-b0db-4d0c-9ca3-824de21ee80d/bin/utaipan-aC7eJsxGYH/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