./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b 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_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --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 8bb47039b70660cfe333b6887d0f99d94255697a030b075b004d2298d7cf4777 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:29:25,959 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:29:26,085 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:29:26,099 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:29:26,100 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:29:26,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:29:26,145 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:29:26,146 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:29:26,147 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:29:26,152 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:29:26,153 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:29:26,154 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:29:26,155 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:29:26,157 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:29:26,157 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:29:26,158 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:29:26,158 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:29:26,159 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:29:26,159 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:29:26,160 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:29:26,160 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:29:26,161 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:29:26,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:29:26,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:29:26,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:29:26,164 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:29:26,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:29:26,165 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:29:26,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:29:26,166 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:29:26,167 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:29:26,168 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:29:26,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:29:26,168 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:29:26,168 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:29:26,169 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:29:26,169 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:29:26,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:29:26,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:29:26,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:29:26,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:29:26,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:29:26,171 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:29:26,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:29:26,172 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:29:26,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:29:26,173 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_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bb47039b70660cfe333b6887d0f99d94255697a030b075b004d2298d7cf4777 [2023-11-06 20:29:26,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:29:26,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:29:26,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:29:26,549 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:29:26,551 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:29:26,552 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-1.i [2023-11-06 20:29:29,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:29:30,183 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:29:30,184 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-1.i [2023-11-06 20:29:30,209 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/data/efe17ae97/f5de790cbf2f48b996e43db6dd15a61c/FLAG0e4cae143 [2023-11-06 20:29:30,227 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/data/efe17ae97/f5de790cbf2f48b996e43db6dd15a61c [2023-11-06 20:29:30,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:29:30,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:29:30,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:29:30,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:29:30,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:29:30,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:30" (1/1) ... [2023-11-06 20:29:30,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e8534f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:30, skipping insertion in model container [2023-11-06 20:29:30,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:30" (1/1) ... [2023-11-06 20:29:30,352 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:29:31,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:29:31,377 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) [2023-11-06 20:29:31,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@145e529f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:31, skipping insertion in model container [2023-11-06 20:29:31,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:29:31,381 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:29:31,383 INFO L158 Benchmark]: Toolchain (without parser) took 1146.78ms. Allocated memory is still 130.0MB. Free memory was 95.2MB in the beginning and 62.4MB in the end (delta: 32.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-06 20:29:31,384 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:29:31,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1141.57ms. Allocated memory is still 130.0MB. Free memory was 95.0MB in the beginning and 62.4MB in the end (delta: 32.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-06 20:29:31,385 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1141.57ms. Allocated memory is still 130.0MB. Free memory was 95.0MB in the beginning and 62.4MB in the end (delta: 32.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2221]: 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_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --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 8bb47039b70660cfe333b6887d0f99d94255697a030b075b004d2298d7cf4777 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:29:33,985 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:29:34,059 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:29:34,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:29:34,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:29:34,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:29:34,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:29:34,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:29:34,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:29:34,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:29:34,138 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:29:34,138 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:29:34,139 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:29:34,141 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:29:34,142 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:29:34,142 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:29:34,143 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:29:34,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:29:34,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:29:34,147 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:29:34,147 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:29:34,148 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:29:34,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:29:34,149 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:29:34,150 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:29:34,150 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:29:34,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:29:34,151 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:29:34,152 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:29:34,153 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:29:34,154 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:29:34,155 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:29:34,155 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:29:34,156 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:29:34,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:29:34,156 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:29:34,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:29:34,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:29:34,159 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:29:34,159 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:29:34,159 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:29:34,160 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:29:34,160 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:29:34,161 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_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bb47039b70660cfe333b6887d0f99d94255697a030b075b004d2298d7cf4777 [2023-11-06 20:29:34,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:29:34,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:29:34,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:29:34,678 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:29:34,679 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:29:34,680 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-1.i [2023-11-06 20:29:37,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:29:38,386 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:29:38,387 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-1.i [2023-11-06 20:29:38,425 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/data/d67bffe4b/eaacda55ca63461cadc870a5cd827065/FLAG118f8d19b [2023-11-06 20:29:38,440 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/data/d67bffe4b/eaacda55ca63461cadc870a5cd827065 [2023-11-06 20:29:38,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:29:38,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:29:38,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:29:38,449 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:29:38,455 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:29:38,456 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:38" (1/1) ... [2023-11-06 20:29:38,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b8448a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:38, skipping insertion in model container [2023-11-06 20:29:38,457 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:38" (1/1) ... [2023-11-06 20:29:38,568 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:29:39,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:29:39,526 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:29:39,551 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:29:39,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:29:39,768 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:29:39,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:29:39,986 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:29:39,994 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:29:39,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:39 WrapperNode [2023-11-06 20:29:39,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:29:39,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:29:39,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:29:39,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:29:40,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:39" (1/1) ... [2023-11-06 20:29:40,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:39" (1/1) ... [2023-11-06 20:29:40,180 INFO L138 Inliner]: procedures = 180, calls = 732, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2873 [2023-11-06 20:29:40,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:29:40,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:29:40,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:29:40,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:29:40,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:39" (1/1) ... [2023-11-06 20:29:40,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:39" (1/1) ... [2023-11-06 20:29:40,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:39" (1/1) ... [2023-11-06 20:29:40,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:39" (1/1) ... [2023-11-06 20:29:40,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:39" (1/1) ... [2023-11-06 20:29:40,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:39" (1/1) ... [2023-11-06 20:29:40,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:39" (1/1) ... [2023-11-06 20:29:40,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:39" (1/1) ... [2023-11-06 20:29:40,407 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:29:40,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:29:40,409 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:29:40,409 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:29:40,411 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:39" (1/1) ... [2023-11-06 20:29:40,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:29:40,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:29:40,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:29:40,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:29:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 20:29:40,522 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 20:29:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 20:29:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:29:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 20:29:40,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 20:29:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 20:29:40,523 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 20:29:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:29:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:29:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 20:29:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:29:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 20:29:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 20:29:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:29:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:29:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:29:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:29:40,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:29:40,753 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:29:40,758 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:29:40,799 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 20:29:47,361 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:29:47,385 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:29:47,386 INFO L302 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-06 20:29:47,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:29:47 BoogieIcfgContainer [2023-11-06 20:29:47,391 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:29:47,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:29:47,395 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:29:47,398 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:29:47,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:29:38" (1/3) ... [2023-11-06 20:29:47,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9aa24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:29:47, skipping insertion in model container [2023-11-06 20:29:47,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:39" (2/3) ... [2023-11-06 20:29:47,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9aa24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:29:47, skipping insertion in model container [2023-11-06 20:29:47,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:29:47" (3/3) ... [2023-11-06 20:29:47,403 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test9-1.i [2023-11-06 20:29:47,423 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:29:47,424 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 430 error locations. [2023-11-06 20:29:47,511 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 20:29:47,518 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@52e9bc06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 20:29:47,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 430 error locations. [2023-11-06 20:29:47,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 1881 states, 945 states have (on average 2.093121693121693) internal successors, (1978), 1874 states have internal predecessors, (1978), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2023-11-06 20:29:47,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 20:29:47,538 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:47,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 20:29:47,540 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 20:29:47,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:47,548 INFO L85 PathProgramCache]: Analyzing trace with hash 47731, now seen corresponding path program 1 times [2023-11-06 20:29:47,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:29:47,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197396228] [2023-11-06 20:29:47,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:47,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:29:47,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:29:47,575 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 20:29:47,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 20:29:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:47,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 20:29:47,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:29:47,836 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 20:29:47,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:47,849 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:29:47,849 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:29:47,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197396228] [2023-11-06 20:29:47,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197396228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:47,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:47,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 20:29:47,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302475824] [2023-11-06 20:29:47,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:47,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:29:47,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:29:47,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:29:47,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:29:47,895 INFO L87 Difference]: Start difference. First operand has 1881 states, 945 states have (on average 2.093121693121693) internal successors, (1978), 1874 states have internal predecessors, (1978), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:50,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:50,945 INFO L93 Difference]: Finished difference Result 1869 states and 2915 transitions. [2023-11-06 20:29:50,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 20:29:50,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-06 20:29:50,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:50,988 INFO L225 Difference]: With dead ends: 1869 [2023-11-06 20:29:50,988 INFO L226 Difference]: Without dead ends: 1867 [2023-11-06 20:29:50,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:29:50,993 INFO L413 NwaCegarLoop]: 2522 mSDtfsCounter, 1798 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-06 20:29:50,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 2574 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-06 20:29:51,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1867 states. [2023-11-06 20:29:51,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1867 to 1866. [2023-11-06 20:29:51,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1866 states, 947 states have (on average 2.0116156282998943) internal successors, (1905), 1859 states have internal predecessors, (1905), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-06 20:29:51,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2913 transitions. [2023-11-06 20:29:51,489 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2913 transitions. Word has length 3 [2023-11-06 20:29:51,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:51,490 INFO L495 AbstractCegarLoop]: Abstraction has 1866 states and 2913 transitions. [2023-11-06 20:29:51,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:51,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2913 transitions. [2023-11-06 20:29:51,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 20:29:51,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:51,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 20:29:51,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 20:29:51,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:29:51,699 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 20:29:51,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:51,700 INFO L85 PathProgramCache]: Analyzing trace with hash 47732, now seen corresponding path program 1 times [2023-11-06 20:29:51,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:29:51,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315620529] [2023-11-06 20:29:51,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:51,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:29:51,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:29:51,704 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 20:29:51,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 20:29:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:29:51,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 20:29:51,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:29:51,823 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 20:29:51,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:29:51,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:29:51,835 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:29:51,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315620529] [2023-11-06 20:29:51,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315620529] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:29:51,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:29:51,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 20:29:51,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385986191] [2023-11-06 20:29:51,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:29:51,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:29:51,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:29:51,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:29:51,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:29:51,839 INFO L87 Difference]: Start difference. First operand 1866 states and 2913 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:56,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:29:56,135 INFO L93 Difference]: Finished difference Result 3077 states and 5146 transitions. [2023-11-06 20:29:56,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 20:29:56,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-06 20:29:56,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:29:56,163 INFO L225 Difference]: With dead ends: 3077 [2023-11-06 20:29:56,164 INFO L226 Difference]: Without dead ends: 3077 [2023-11-06 20:29:56,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:29:56,166 INFO L413 NwaCegarLoop]: 2935 mSDtfsCounter, 1232 mSDsluCounter, 1975 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 4910 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-06 20:29:56,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 4910 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-06 20:29:56,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2023-11-06 20:29:56,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 2991. [2023-11-06 20:29:56,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2991 states, 1573 states have (on average 1.9936427209154481) internal successors, (3136), 2984 states have internal predecessors, (3136), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-06 20:29:56,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2991 states to 2991 states and 5144 transitions. [2023-11-06 20:29:56,525 INFO L78 Accepts]: Start accepts. Automaton has 2991 states and 5144 transitions. Word has length 3 [2023-11-06 20:29:56,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:29:56,526 INFO L495 AbstractCegarLoop]: Abstraction has 2991 states and 5144 transitions. [2023-11-06 20:29:56,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:29:56,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2991 states and 5144 transitions. [2023-11-06 20:29:56,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 20:29:56,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:29:56,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:29:56,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 20:29:56,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:29:56,741 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-06 20:29:56,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:29:56,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1130822653, now seen corresponding path program 1 times [2023-11-06 20:29:56,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:29:56,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141894857] [2023-11-06 20:29:56,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:29:56,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:29:56,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:29:56,754 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 20:29:56,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81940e61-c022-49b6-ade4-09890c65bf9f/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process