./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX --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 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:52:08,838 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:52:08,909 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:52:08,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:52:08,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:52:08,944 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:52:08,945 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:52:08,945 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:52:08,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:52:08,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:52:08,948 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:52:08,949 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:52:08,949 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:52:08,950 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:52:08,951 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:52:08,952 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:52:08,952 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:52:08,953 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:52:08,953 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:52:08,954 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:52:08,955 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:52:08,955 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:52:08,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:52:08,962 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:52:08,962 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:52:08,963 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:52:08,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:52:08,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:52:08,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:52:08,966 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:52:08,967 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:52:08,968 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:52:08,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:52:08,968 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:52:08,969 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:52:08,969 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:52:08,969 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:52:08,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:52:08,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:52:08,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:08,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:52:08,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:52:08,971 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:52:08,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:52:08,973 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:52:08,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:52:08,974 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_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a [2023-11-12 00:52:09,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:52:09,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:52:09,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:52:09,297 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:52:09,298 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:52:09,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2023-11-12 00:52:12,431 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:52:12,879 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:52:12,880 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2023-11-12 00:52:12,906 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/data/f5c180169/dcf05be1eb1f4226aa7e6730279357c1/FLAGdf7e7509a [2023-11-12 00:52:12,929 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/data/f5c180169/dcf05be1eb1f4226aa7e6730279357c1 [2023-11-12 00:52:12,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:52:12,939 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:52:12,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:12,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:52:12,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:52:12,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:12" (1/1) ... [2023-11-12 00:52:12,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb0a3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:12, skipping insertion in model container [2023-11-12 00:52:12,950 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:12" (1/1) ... [2023-11-12 00:52:13,024 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:13,528 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:13,528 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:13,529 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:13,529 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:13,574 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:13,599 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) [2023-11-12 00:52:13,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@c97c6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:13, skipping insertion in model container [2023-11-12 00:52:13,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:13,601 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:52:13,602 INFO L158 Benchmark]: Toolchain (without parser) took 662.13ms. Allocated memory is still 119.5MB. Free memory was 86.9MB in the beginning and 71.4MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 00:52:13,603 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:52:13,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 658.42ms. Allocated memory is still 119.5MB. Free memory was 86.7MB in the beginning and 71.4MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 00:52:13,605 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 658.42ms. Allocated memory is still 119.5MB. Free memory was 86.7MB in the beginning and 71.4MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1045]: 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX --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 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:52:16,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:52:16,169 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:52:16,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:52:16,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:52:16,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:52:16,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:52:16,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:52:16,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:52:16,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:52:16,208 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:52:16,209 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:52:16,210 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:52:16,210 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:52:16,211 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:52:16,211 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:52:16,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:52:16,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:52:16,213 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:52:16,214 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:52:16,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:52:16,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:52:16,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:52:16,216 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:52:16,216 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:52:16,217 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:52:16,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:52:16,217 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:52:16,218 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:52:16,218 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:52:16,219 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:52:16,219 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:52:16,219 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:52:16,220 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:52:16,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:52:16,220 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:52:16,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:16,221 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:52:16,221 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:52:16,221 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:52:16,222 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:52:16,222 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:52:16,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:52:16,223 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_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a [2023-11-12 00:52:16,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:52:16,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:52:16,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:52:16,603 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:52:16,603 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:52:16,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2023-11-12 00:52:19,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:52:20,150 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:52:20,155 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2023-11-12 00:52:20,188 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/data/f7ec66142/1a2950f4ca3245e9967ca0fd3cd2028f/FLAG359fa08b5 [2023-11-12 00:52:20,207 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/data/f7ec66142/1a2950f4ca3245e9967ca0fd3cd2028f [2023-11-12 00:52:20,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:52:20,217 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:52:20,219 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:20,219 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:52:20,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:52:20,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:20" (1/1) ... [2023-11-12 00:52:20,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ccdf3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:20, skipping insertion in model container [2023-11-12 00:52:20,226 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:20" (1/1) ... [2023-11-12 00:52:20,296 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:20,889 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:20,889 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:20,890 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:20,890 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:20,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:20,953 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:52:20,967 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:20,995 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:20,995 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:20,996 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:20,997 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:21,009 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:21,019 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:52:21,056 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:21,056 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:21,057 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:21,057 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 00:52:21,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:21,166 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:52:21,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:21 WrapperNode [2023-11-12 00:52:21,167 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:21,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:21,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:52:21,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:52:21,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:21" (1/1) ... [2023-11-12 00:52:21,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:21" (1/1) ... [2023-11-12 00:52:21,237 INFO L138 Inliner]: procedures = 276, calls = 38, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 158 [2023-11-12 00:52:21,238 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:21,238 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:52:21,239 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:52:21,239 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:52:21,249 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:21" (1/1) ... [2023-11-12 00:52:21,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:21" (1/1) ... [2023-11-12 00:52:21,255 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:21" (1/1) ... [2023-11-12 00:52:21,255 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:21" (1/1) ... [2023-11-12 00:52:21,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:21" (1/1) ... [2023-11-12 00:52:21,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:21" (1/1) ... [2023-11-12 00:52:21,290 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:21" (1/1) ... [2023-11-12 00:52:21,293 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:21" (1/1) ... [2023-11-12 00:52:21,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:52:21,313 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:52:21,313 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:52:21,313 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:52:21,314 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:21" (1/1) ... [2023-11-12 00:52:21,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:21,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:52:21,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:52:21,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078c968d-3e30-482f-b588-8b36fca5bcf3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:52:21,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:52:21,402 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-11-12 00:52:21,402 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-11-12 00:52:21,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:52:21,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:52:21,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:52:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:52:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 00:52:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:52:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:52:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:52:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:52:21,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:52:21,408 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:52:21,591 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:52:21,593 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:52:22,321 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:52:22,334 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:52:22,336 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 00:52:22,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:22 BoogieIcfgContainer [2023-11-12 00:52:22,339 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:52:22,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:52:22,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:52:22,346 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:52:22,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:52:20" (1/3) ... [2023-11-12 00:52:22,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fd4527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:22, skipping insertion in model container [2023-11-12 00:52:22,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:21" (2/3) ... [2023-11-12 00:52:22,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fd4527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:22, skipping insertion in model container [2023-11-12 00:52:22,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:22" (3/3) ... [2023-11-12 00:52:22,352 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_24-evilcollapse_nr.i [2023-11-12 00:52:22,373 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:52:22,373 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2023-11-12 00:52:22,374 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:52:22,561 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:52:22,625 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:52:22,656 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 268 places, 278 transitions, 564 flow [2023-11-12 00:52:22,661 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 268 places, 278 transitions, 564 flow [2023-11-12 00:52:22,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 268 places, 278 transitions, 564 flow [2023-11-12 00:52:22,847 INFO L124 PetriNetUnfolderBase]: 17/276 cut-off events. [2023-11-12 00:52:22,848 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:52:22,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 276 events. 17/276 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 743 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 214. Up to 2 conditions per place. [2023-11-12 00:52:22,868 INFO L119 LiptonReduction]: Number of co-enabled transitions 8400