./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 73c55a951ef2b92a665c2c32d76e33a5a03bdbde67ee3c8e6748faf493088c7e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:59:20,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:59:20,463 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 04:59:20,475 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:59:20,476 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:59:20,513 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:59:20,514 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:59:20,515 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:59:20,516 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:59:20,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:59:20,522 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:59:20,523 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:59:20,524 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:59:20,526 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:59:20,526 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:59:20,527 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:59:20,527 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:59:20,528 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:59:20,528 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:59:20,529 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:59:20,529 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:59:20,530 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:59:20,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:59:20,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:59:20,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:59:20,533 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:59:20,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:59:20,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:59:20,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:59:20,535 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:59:20,536 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:59:20,537 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:59:20,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:59:20,537 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:59:20,538 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:59:20,538 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:59:20,538 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:59:20,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:59:20,539 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:59:20,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:20,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:59:20,540 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:59:20,541 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:59:20,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:59:20,542 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:59:20,542 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:59:20,542 INFO L153 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_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73c55a951ef2b92a665c2c32d76e33a5a03bdbde67ee3c8e6748faf493088c7e [2023-11-19 04:59:20,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:59:20,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:59:20,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:59:20,893 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:59:20,895 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:59:20,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c [2023-11-19 04:59:24,026 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:59:24,278 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:59:24,281 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/sv-benchmarks/c/weaver/popl20-commit-1.wvr.c [2023-11-19 04:59:24,295 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/data/4a96f0fc3/b7db710016ed4b37acc910b15dbd8447/FLAG59260ed1b [2023-11-19 04:59:24,314 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/data/4a96f0fc3/b7db710016ed4b37acc910b15dbd8447 [2023-11-19 04:59:24,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:59:24,320 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:59:24,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:24,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:59:24,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:59:24,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:24" (1/1) ... [2023-11-19 04:59:24,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ad3c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:24, skipping insertion in model container [2023-11-19 04:59:24,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:24" (1/1) ... [2023-11-19 04:59:24,366 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:59:24,572 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:24,586 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-19 04:59:24,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7b5ce4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:24, skipping insertion in model container [2023-11-19 04:59:24,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:24,592 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 04:59:24,598 INFO L158 Benchmark]: Toolchain (without parser) took 276.77ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 86.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:59:24,599 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 100.7MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:59:24,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.55ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 86.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:59:24,602 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 100.7MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.55ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 86.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 157]: Unsupported Syntax Found a cast between two array/pointer types of different sizes 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 73c55a951ef2b92a665c2c32d76e33a5a03bdbde67ee3c8e6748faf493088c7e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:59:26,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:59:27,124 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-19 04:59:27,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:59:27,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:59:27,196 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:59:27,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:59:27,197 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:59:27,198 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:59:27,203 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:59:27,204 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:59:27,204 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:59:27,205 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:59:27,207 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:59:27,207 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:59:27,208 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:59:27,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:59:27,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:59:27,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:59:27,210 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:59:27,211 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:59:27,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:59:27,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:59:27,212 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:59:27,213 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:59:27,213 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:59:27,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:59:27,214 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:59:27,214 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:59:27,215 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:59:27,216 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:59:27,217 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:59:27,217 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:59:27,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:59:27,217 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:59:27,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:59:27,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:27,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:59:27,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:59:27,220 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:59:27,220 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:59:27,220 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:59:27,221 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:59:27,221 INFO L153 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_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73c55a951ef2b92a665c2c32d76e33a5a03bdbde67ee3c8e6748faf493088c7e [2023-11-19 04:59:27,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:59:27,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:59:27,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:59:27,654 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:59:27,655 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:59:27,656 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c [2023-11-19 04:59:30,739 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:59:31,049 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:59:31,050 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/sv-benchmarks/c/weaver/popl20-commit-1.wvr.c [2023-11-19 04:59:31,058 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/data/465d24218/c6ca007360d54116931c0dd8f76c3f3a/FLAGc95bcc1e9 [2023-11-19 04:59:31,072 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/data/465d24218/c6ca007360d54116931c0dd8f76c3f3a [2023-11-19 04:59:31,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:59:31,076 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:59:31,078 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:31,078 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:59:31,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:59:31,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:31" (1/1) ... [2023-11-19 04:59:31,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ee3402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:31, skipping insertion in model container [2023-11-19 04:59:31,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:31" (1/1) ... [2023-11-19 04:59:31,117 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:59:31,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:31,444 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 04:59:31,458 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:59:31,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:31,513 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:59:31,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:31,595 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:59:31,597 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:59:31,605 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:59:31,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:31 WrapperNode [2023-11-19 04:59:31,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:31,608 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:31,608 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:59:31,608 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:59:31,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:31" (1/1) ... [2023-11-19 04:59:31,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:31" (1/1) ... [2023-11-19 04:59:31,725 INFO L138 Inliner]: procedures = 27, calls = 69, calls flagged for inlining = 21, calls inlined = 25, statements flattened = 343 [2023-11-19 04:59:31,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:31,733 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:59:31,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:59:31,734 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:59:31,744 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:31" (1/1) ... [2023-11-19 04:59:31,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:31" (1/1) ... [2023-11-19 04:59:31,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:31" (1/1) ... [2023-11-19 04:59:31,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:31" (1/1) ... [2023-11-19 04:59:31,801 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:31" (1/1) ... [2023-11-19 04:59:31,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:31" (1/1) ... [2023-11-19 04:59:31,822 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:31" (1/1) ... [2023-11-19 04:59:31,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:31" (1/1) ... [2023-11-19 04:59:31,829 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:59:31,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:59:31,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:59:31,830 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:59:31,832 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:31" (1/1) ... [2023-11-19 04:59:31,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:31,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:59:31,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:59:31,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a91e9566-5929-4220-b3f2-26b07f94b1cf/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:59:31,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:59:31,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:59:31,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:59:31,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:59:31,931 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 04:59:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 04:59:31,932 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 04:59:31,934 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 04:59:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 04:59:31,935 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 04:59:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:59:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:59:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:59:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:59:31,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:59:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:59:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:59:31,939 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:59:32,137 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:59:32,140 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:59:33,102 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:59:33,416 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:59:33,416 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-19 04:59:33,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:33 BoogieIcfgContainer [2023-11-19 04:59:33,421 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:59:33,423 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:59:33,423 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:59:33,426 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:59:33,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:59:31" (1/3) ... [2023-11-19 04:59:33,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6015a2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:33, skipping insertion in model container [2023-11-19 04:59:33,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:31" (2/3) ... [2023-11-19 04:59:33,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6015a2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:33, skipping insertion in model container [2023-11-19 04:59:33,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:33" (3/3) ... [2023-11-19 04:59:33,429 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-1.wvr.c [2023-11-19 04:59:33,449 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:59:33,449 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-11-19 04:59:33,449 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:59:33,581 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 04:59:33,618 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:59:33,636 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 291 places, 303 transitions, 627 flow [2023-11-19 04:59:33,643 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 291 places, 303 transitions, 627 flow [2023-11-19 04:59:33,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 291 places, 303 transitions, 627 flow [2023-11-19 04:59:33,780 INFO L124 PetriNetUnfolderBase]: 22/300 cut-off events. [2023-11-19 04:59:33,781 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 04:59:33,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 300 events. 22/300 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 303 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 245. Up to 2 conditions per place. [2023-11-19 04:59:33,795 INFO L119 LiptonReduction]: Number of co-enabled transitions 3898