./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_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_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/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_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/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_e7a40251-9557-4244-ad5d-721ee850a2eb/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 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:01:34,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:01:34,181 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 21:01:34,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:01:34,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:01:34,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:01:34,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:01:34,216 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:01:34,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:01:34,217 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:01:34,217 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:01:34,218 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:01:34,219 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:01:34,222 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 21:01:34,223 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:01:34,224 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:01:34,225 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 21:01:34,225 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 21:01:34,225 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:01:34,226 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 21:01:34,226 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 21:01:34,227 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 21:01:34,228 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:01:34,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:01:34,229 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:01:34,229 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:01:34,229 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:01:34,230 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:01:34,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:01:34,231 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:01:34,231 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:01:34,231 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:01:34,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:01:34,232 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:01:34,232 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:01:34,233 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:01:34,233 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:01:34,233 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:01:34,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:01:34,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:01:34,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:01:34,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:01:34,235 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 21:01:34,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:01:34,235 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:01:34,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:01:34,235 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_e7a40251-9557-4244-ad5d-721ee850a2eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 [2023-11-06 21:01:34,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:01:34,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:01:34,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:01:34,598 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:01:34,600 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:01:34,602 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2023-11-06 21:01:37,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:01:38,224 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:01:38,225 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2023-11-06 21:01:38,261 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/data/ec04875c7/cc9d7787a5bc46238f3a52c1631d2ff6/FLAG51f1c6640 [2023-11-06 21:01:38,281 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/data/ec04875c7/cc9d7787a5bc46238f3a52c1631d2ff6 [2023-11-06 21:01:38,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:01:38,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:01:38,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:01:38,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:01:38,300 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:01:38,301 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:01:38" (1/1) ... [2023-11-06 21:01:38,302 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3840603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:38, skipping insertion in model container [2023-11-06 21:01:38,302 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:01:38" (1/1) ... [2023-11-06 21:01:38,408 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:01:39,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:01:39,403 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 21:01:39,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5860c56b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:39, skipping insertion in model container [2023-11-06 21:01:39,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:01:39,404 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 21:01:39,406 INFO L158 Benchmark]: Toolchain (without parser) took 1113.68ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 75.6MB in the beginning and 117.3MB in the end (delta: -41.7MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2023-11-06 21:01:39,407 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:01:39,408 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1110.14ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 75.2MB in the beginning and 117.3MB in the end (delta: -42.2MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2023-11-06 21:01:39,410 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1110.14ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 75.2MB in the beginning and 117.3MB in the end (delta: -42.2MB). Peak memory consumption was 40.3MB. 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_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/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_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/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_e7a40251-9557-4244-ad5d-721ee850a2eb/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 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:01:41,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:01:42,000 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 21:01:42,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:01:42,008 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:01:42,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:01:42,051 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:01:42,052 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:01:42,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:01:42,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:01:42,054 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:01:42,054 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:01:42,055 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:01:42,055 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:01:42,058 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:01:42,059 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:01:42,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:01:42,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:01:42,065 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:01:42,067 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:01:42,068 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:01:42,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:01:42,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:01:42,070 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:01:42,070 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:01:42,071 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:01:42,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:01:42,071 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:01:42,072 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 21:01:42,072 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 21:01:42,074 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:01:42,074 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:01:42,074 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:01:42,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:01:42,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:01:42,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:01:42,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:01:42,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:01:42,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:01:42,077 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 21:01:42,078 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 21:01:42,078 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:01:42,078 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:01:42,079 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_e7a40251-9557-4244-ad5d-721ee850a2eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 [2023-11-06 21:01:42,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:01:42,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:01:42,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:01:42,517 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:01:42,517 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:01:42,519 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2023-11-06 21:01:45,797 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:01:46,318 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:01:46,318 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2023-11-06 21:01:46,350 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/data/745a84ff5/1d37a97f726346e786136aa325349a74/FLAG69f715d07 [2023-11-06 21:01:46,370 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/data/745a84ff5/1d37a97f726346e786136aa325349a74 [2023-11-06 21:01:46,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:01:46,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:01:46,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:01:46,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:01:46,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:01:46,391 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:01:46" (1/1) ... [2023-11-06 21:01:46,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd452da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:46, skipping insertion in model container [2023-11-06 21:01:46,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:01:46" (1/1) ... [2023-11-06 21:01:46,472 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:01:47,368 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:01:47,387 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 21:01:47,427 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:01:47,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:01:47,659 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:01:47,836 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:01:47,884 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:01:47,893 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:01:47,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:47 WrapperNode [2023-11-06 21:01:47,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:01:47,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:01:47,896 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:01:47,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:01:47,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:47" (1/1) ... [2023-11-06 21:01:47,980 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:47" (1/1) ... [2023-11-06 21:01:48,101 INFO L138 Inliner]: procedures = 180, calls = 732, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2873 [2023-11-06 21:01:48,102 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:01:48,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:01:48,103 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:01:48,103 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:01:48,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:47" (1/1) ... [2023-11-06 21:01:48,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:47" (1/1) ... [2023-11-06 21:01:48,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:47" (1/1) ... [2023-11-06 21:01:48,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:47" (1/1) ... [2023-11-06 21:01:48,242 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:47" (1/1) ... [2023-11-06 21:01:48,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:47" (1/1) ... [2023-11-06 21:01:48,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:47" (1/1) ... [2023-11-06 21:01:48,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:47" (1/1) ... [2023-11-06 21:01:48,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:01:48,334 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:01:48,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:01:48,334 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:01:48,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:47" (1/1) ... [2023-11-06 21:01:48,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:01:48,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 21:01:48,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:01:48,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:01:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 21:01:48,420 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 21:01:48,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 21:01:48,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 21:01:48,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 21:01:48,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 21:01:48,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 21:01:48,421 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 21:01:48,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:01:48,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:01:48,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 21:01:48,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:01:48,424 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 21:01:48,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 21:01:48,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:01:48,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 21:01:48,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 21:01:48,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:01:48,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:01:48,667 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:01:48,672 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:01:48,714 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 21:01:55,729 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:01:55,755 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:01:55,756 INFO L302 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-06 21:01:55,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:01:55 BoogieIcfgContainer [2023-11-06 21:01:55,762 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:01:55,765 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:01:55,766 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:01:55,769 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:01:55,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:01:46" (1/3) ... [2023-11-06 21:01:55,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1663b9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:01:55, skipping insertion in model container [2023-11-06 21:01:55,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:01:47" (2/3) ... [2023-11-06 21:01:55,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1663b9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:01:55, skipping insertion in model container [2023-11-06 21:01:55,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:01:55" (3/3) ... [2023-11-06 21:01:55,774 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test9-1.i [2023-11-06 21:01:55,794 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:01:55,795 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 430 error locations. [2023-11-06 21:01:55,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:01:55,928 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;@6b3a4a60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 21:01:55,928 INFO L358 AbstractCegarLoop]: Starting to check reachability of 430 error locations. [2023-11-06 21:01:55,944 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 21:01:55,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 21:01:55,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:01:55,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 21:01:55,960 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 21:01:55,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:01:55,966 INFO L85 PathProgramCache]: Analyzing trace with hash 47731, now seen corresponding path program 1 times [2023-11-06 21:01:55,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 21:01:55,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991951423] [2023-11-06 21:01:55,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:01:55,979 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 21:01:55,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 21:01:55,984 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/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 21:01:55,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/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 21:01:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:01:56,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 21:01:56,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:01:56,241 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 21:01:56,259 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 21:01:56,260 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:01:56,260 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 21:01:56,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991951423] [2023-11-06 21:01:56,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991951423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:01:56,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:01:56,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:01:56,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441567560] [2023-11-06 21:01:56,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:01:56,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:01:56,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 21:01:56,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:01:56,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:01:56,307 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 21:01:59,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:01:59,532 INFO L93 Difference]: Finished difference Result 1869 states and 2915 transitions. [2023-11-06 21:01:59,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:01:59,535 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 21:01:59,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:01:59,591 INFO L225 Difference]: With dead ends: 1869 [2023-11-06 21:01:59,592 INFO L226 Difference]: Without dead ends: 1867 [2023-11-06 21:01:59,594 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 21:01:59,599 INFO L413 NwaCegarLoop]: 2522 mSDtfsCounter, 1798 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 3.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:01:59,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 2574 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-06 21:01:59,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1867 states. [2023-11-06 21:02:00,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1867 to 1866. [2023-11-06 21:02:00,217 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 21:02:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2913 transitions. [2023-11-06 21:02:00,234 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2913 transitions. Word has length 3 [2023-11-06 21:02:00,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:02:00,234 INFO L495 AbstractCegarLoop]: Abstraction has 1866 states and 2913 transitions. [2023-11-06 21:02:00,235 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 21:02:00,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2913 transitions. [2023-11-06 21:02:00,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 21:02:00,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:02:00,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 21:02:00,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/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 21:02:00,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/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 21:02:00,447 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 21:02:00,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:02:00,448 INFO L85 PathProgramCache]: Analyzing trace with hash 47732, now seen corresponding path program 1 times [2023-11-06 21:02:00,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 21:02:00,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592987290] [2023-11-06 21:02:00,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:02:00,449 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 21:02:00,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 21:02:00,450 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/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 21:02:00,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/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 21:02:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:02:00,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:02:00,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:02:00,593 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 21:02:00,605 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 21:02:00,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:02:00,606 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 21:02:00,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592987290] [2023-11-06 21:02:00,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592987290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:02:00,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:02:00,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:02:00,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931771013] [2023-11-06 21:02:00,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:02:00,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:02:00,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 21:02:00,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:02:00,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:02:00,610 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 21:02:04,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:02:04,692 INFO L93 Difference]: Finished difference Result 3077 states and 5146 transitions. [2023-11-06 21:02:04,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:02:04,693 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 21:02:04,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:02:04,719 INFO L225 Difference]: With dead ends: 3077 [2023-11-06 21:02:04,719 INFO L226 Difference]: Without dead ends: 3077 [2023-11-06 21:02:04,719 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 21:02:04,721 INFO L413 NwaCegarLoop]: 2935 mSDtfsCounter, 1232 mSDsluCounter, 1975 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s 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, 3.9s IncrementalHoareTripleChecker+Time [2023-11-06 21:02:04,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 4910 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-06 21:02:04,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2023-11-06 21:02:05,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 2991. [2023-11-06 21:02:05,102 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 21:02:05,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2991 states to 2991 states and 5144 transitions. [2023-11-06 21:02:05,123 INFO L78 Accepts]: Start accepts. Automaton has 2991 states and 5144 transitions. Word has length 3 [2023-11-06 21:02:05,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:02:05,124 INFO L495 AbstractCegarLoop]: Abstraction has 2991 states and 5144 transitions. [2023-11-06 21:02:05,124 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 21:02:05,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2991 states and 5144 transitions. [2023-11-06 21:02:05,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 21:02:05,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:02:05,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:02:05,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a40251-9557-4244-ad5d-721ee850a2eb/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