./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/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_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/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_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/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 670814d0a16da58b0f26835e20c05a244e2f373856f13b9d4ff2a931783edf81 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:49:03,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:49:03,135 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:49:03,141 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:49:03,142 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:49:03,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:49:03,169 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:49:03,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:49:03,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:49:03,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:49:03,172 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:49:03,172 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:49:03,173 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:49:03,173 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:49:03,174 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:49:03,174 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:49:03,175 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:49:03,175 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:49:03,176 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:49:03,177 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:49:03,177 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:49:03,178 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:49:03,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:49:03,179 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:49:03,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:49:03,180 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:49:03,180 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:49:03,181 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:49:03,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:49:03,182 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:49:03,182 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:49:03,182 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:49:03,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:49:03,183 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:49:03,184 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:49:03,184 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:49:03,185 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:49:03,185 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:49:03,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:49:03,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:49:03,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:49:03,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:49:03,188 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:49:03,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:49:03,189 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:49:03,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:49:03,189 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_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 670814d0a16da58b0f26835e20c05a244e2f373856f13b9d4ff2a931783edf81 [2023-11-12 00:49:03,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:49:03,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:49:03,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:49:03,480 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:49:03,481 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:49:03,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2023-11-12 00:49:06,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:49:06,846 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:49:06,846 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2023-11-12 00:49:06,856 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/data/b2ac6736e/f421c3dfd4504f9a9245230719201e39/FLAGf476c588d [2023-11-12 00:49:06,872 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/data/b2ac6736e/f421c3dfd4504f9a9245230719201e39 [2023-11-12 00:49:06,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:49:06,876 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:49:06,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:49:06,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:49:06,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:49:06,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:49:06" (1/1) ... [2023-11-12 00:49:06,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a3ca53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:06, skipping insertion in model container [2023-11-12 00:49:06,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:49:06" (1/1) ... [2023-11-12 00:49:06,927 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:49:07,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:49:07,186 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 00:49:07,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@d95b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:07, skipping insertion in model container [2023-11-12 00:49:07,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:49:07,187 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:49:07,189 INFO L158 Benchmark]: Toolchain (without parser) took 312.05ms. Allocated memory is still 127.9MB. Free memory was 95.9MB in the beginning and 85.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:49:07,189 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 127.9MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:49:07,190 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.49ms. Allocated memory is still 127.9MB. Free memory was 95.5MB in the beginning and 85.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 00:49:07,191 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 127.9MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.49ms. Allocated memory is still 127.9MB. Free memory was 95.5MB in the beginning and 85.9MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 123]: 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_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/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_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/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_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/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 670814d0a16da58b0f26835e20c05a244e2f373856f13b9d4ff2a931783edf81 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:49:09,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:49:09,766 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:49:09,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:49:09,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:49:09,840 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:49:09,841 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:49:09,842 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:49:09,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:49:09,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:49:09,848 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:49:09,849 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:49:09,849 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:49:09,851 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:49:09,852 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:49:09,852 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:49:09,853 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:49:09,853 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:49:09,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:49:09,855 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:49:09,855 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:49:09,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:49:09,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:49:09,857 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:49:09,857 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:49:09,858 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:49:09,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:49:09,858 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:49:09,859 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:49:09,859 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:49:09,861 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:49:09,861 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:49:09,862 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:49:09,862 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:49:09,862 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:49:09,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:49:09,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:49:09,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:49:09,864 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:49:09,865 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:49:09,865 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:49:09,865 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:49:09,865 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:49:09,866 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_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 670814d0a16da58b0f26835e20c05a244e2f373856f13b9d4ff2a931783edf81 [2023-11-12 00:49:10,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:49:10,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:49:10,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:49:10,300 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:49:10,301 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:49:10,302 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2023-11-12 00:49:13,560 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:49:13,829 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:49:13,830 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2023-11-12 00:49:13,839 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/data/e26498b1a/93a1b3a324f64d2288a1d408a05c35ed/FLAG68e26572b [2023-11-12 00:49:13,855 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/data/e26498b1a/93a1b3a324f64d2288a1d408a05c35ed [2023-11-12 00:49:13,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:49:13,859 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:49:13,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:49:13,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:49:13,867 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:49:13,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:49:13" (1/1) ... [2023-11-12 00:49:13,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f882073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:13, skipping insertion in model container [2023-11-12 00:49:13,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:49:13" (1/1) ... [2023-11-12 00:49:13,904 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:49:14,195 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:49:14,224 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:49:14,239 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:49:14,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:49:14,268 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:49:14,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:49:14,308 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:49:14,308 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:49:14,316 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:49:14,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:14 WrapperNode [2023-11-12 00:49:14,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:49:14,318 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:49:14,319 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:49:14,319 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:49:14,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:14" (1/1) ... [2023-11-12 00:49:14,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:14" (1/1) ... [2023-11-12 00:49:14,374 INFO L138 Inliner]: procedures = 28, calls = 58, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 235 [2023-11-12 00:49:14,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:49:14,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:49:14,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:49:14,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:49:14,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:14" (1/1) ... [2023-11-12 00:49:14,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:14" (1/1) ... [2023-11-12 00:49:14,412 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:14" (1/1) ... [2023-11-12 00:49:14,413 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:14" (1/1) ... [2023-11-12 00:49:14,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:14" (1/1) ... [2023-11-12 00:49:14,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:14" (1/1) ... [2023-11-12 00:49:14,435 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:14" (1/1) ... [2023-11-12 00:49:14,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:14" (1/1) ... [2023-11-12 00:49:14,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:49:14,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:49:14,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:49:14,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:49:14,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:14" (1/1) ... [2023-11-12 00:49:14,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:49:14,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:49:14,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:49:14,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6a02f8-b3a5-4481-97b9-4b1a4bb46db2/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:49:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:49:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:49:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:49:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:49:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 00:49:14,534 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 00:49:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 00:49:14,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 00:49:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 00:49:14,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 00:49:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:49:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:49:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:49:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:49:14,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:49:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:49:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:49:14,538 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 00:49:14,670 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:49:14,673 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:49:15,756 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:49:15,970 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:49:15,970 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-12 00:49:15,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:49:15 BoogieIcfgContainer [2023-11-12 00:49:15,974 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:49:15,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:49:15,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:49:15,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:49:15,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:49:13" (1/3) ... [2023-11-12 00:49:15,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76af66a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:49:15, skipping insertion in model container [2023-11-12 00:49:15,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:14" (2/3) ... [2023-11-12 00:49:15,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76af66a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:49:15, skipping insertion in model container [2023-11-12 00:49:15,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:49:15" (3/3) ... [2023-11-12 00:49:15,982 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2023-11-12 00:49:16,002 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:49:16,003 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2023-11-12 00:49:16,003 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:49:16,204 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-12 00:49:16,264 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:49:16,287 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 352 places, 369 transitions, 759 flow [2023-11-12 00:49:16,293 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 352 places, 369 transitions, 759 flow [2023-11-12 00:49:16,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 352 places, 369 transitions, 759 flow [2023-11-12 00:49:16,502 INFO L124 PetriNetUnfolderBase]: 27/366 cut-off events. [2023-11-12 00:49:16,503 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 00:49:16,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 366 events. 27/366 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 457 event pairs, 0 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 281. Up to 2 conditions per place. [2023-11-12 00:49:16,531 INFO L119 LiptonReduction]: Number of co-enabled transitions 5962