./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c098eb2ea0abe7b0f4b25f613d67df9ef36b2215e5396f258b75924d2167f9c8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:58:00,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:58:00,261 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-26 11:58:00,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:58:00,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:58:00,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:58:00,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:58:00,291 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:58:00,292 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:58:00,292 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:58:00,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:58:00,293 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:58:00,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:58:00,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:58:00,296 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:58:00,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:58:00,297 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:58:00,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:58:00,298 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:58:00,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:58:00,299 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 11:58:00,300 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 11:58:00,300 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 11:58:00,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:58:00,301 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:58:00,302 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:58:00,303 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:58:00,303 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:58:00,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:58:00,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:58:00,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:58:00,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:58:00,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:00,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:58:00,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:58:00,307 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:58:00,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:58:00,308 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:58:00,309 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:58:00,309 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:58:00,310 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:58:00,310 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c098eb2ea0abe7b0f4b25f613d67df9ef36b2215e5396f258b75924d2167f9c8 [2023-11-26 11:58:00,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:58:00,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:58:00,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:58:00,604 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:58:00,604 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:58:00,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-3.i [2023-11-26 11:58:03,632 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:58:04,165 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:58:04,167 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-3.i [2023-11-26 11:58:04,197 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/data/205238595/35d92c5a29594a078be588bf74259f97/FLAGdec9d209a [2023-11-26 11:58:04,215 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/data/205238595/35d92c5a29594a078be588bf74259f97 [2023-11-26 11:58:04,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:58:04,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:58:04,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:04,226 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:58:04,232 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:58:04,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:04" (1/1) ... [2023-11-26 11:58:04,234 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f1b5c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:04, skipping insertion in model container [2023-11-26 11:58:04,234 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:04" (1/1) ... [2023-11-26 11:58:04,323 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:58:05,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:05,217 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) [2023-11-26 11:58:05,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3a310320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:05, skipping insertion in model container [2023-11-26 11:58:05,218 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:05,218 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-26 11:58:05,220 INFO L158 Benchmark]: Toolchain (without parser) took 996.15ms. Allocated memory is still 186.6MB. Free memory was 153.7MB in the beginning and 122.4MB in the end (delta: 31.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-26 11:58:05,221 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:58:05,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 992.16ms. Allocated memory is still 186.6MB. Free memory was 153.2MB in the beginning and 122.4MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-26 11:58:05,223 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 992.16ms. Allocated memory is still 186.6MB. Free memory was 153.2MB in the beginning and 122.4MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 734]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c098eb2ea0abe7b0f4b25f613d67df9ef36b2215e5396f258b75924d2167f9c8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:58:07,751 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:58:07,843 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-26 11:58:07,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:58:07,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:58:07,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:58:07,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:58:07,881 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:58:07,882 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:58:07,882 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:58:07,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:58:07,884 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:58:07,885 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:58:07,885 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:58:07,886 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:58:07,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:58:07,888 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:58:07,888 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:58:07,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:58:07,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:58:07,890 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 11:58:07,891 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 11:58:07,892 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 11:58:07,892 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:58:07,893 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:58:07,893 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:58:07,894 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:58:07,894 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:58:07,895 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:58:07,895 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:58:07,896 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:58:07,896 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:58:07,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:58:07,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:58:07,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:07,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:58:07,904 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:58:07,904 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:58:07,904 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:58:07,905 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:58:07,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:58:07,906 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:58:07,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:58:07,906 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:58:07,907 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c098eb2ea0abe7b0f4b25f613d67df9ef36b2215e5396f258b75924d2167f9c8 [2023-11-26 11:58:08,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:58:08,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:58:08,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:58:08,395 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:58:08,395 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:58:08,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-3.i [2023-11-26 11:58:11,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:58:12,125 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:58:12,126 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-3.i [2023-11-26 11:58:12,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/data/7655eff3d/65113ad7040344929263b400bc78f861/FLAG1566691ca [2023-11-26 11:58:12,169 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/data/7655eff3d/65113ad7040344929263b400bc78f861 [2023-11-26 11:58:12,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:58:12,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:58:12,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:12,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:58:12,190 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:58:12,191 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:12" (1/1) ... [2023-11-26 11:58:12,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d30e95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:12, skipping insertion in model container [2023-11-26 11:58:12,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:12" (1/1) ... [2023-11-26 11:58:12,289 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:58:13,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:13,199 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-26 11:58:13,220 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:58:13,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:13,458 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:58:13,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:13,690 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:58:13,699 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:58:13,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13 WrapperNode [2023-11-26 11:58:13,700 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:13,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:13,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:58:13,707 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:58:13,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,769 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,902 INFO L138 Inliner]: procedures = 180, calls = 624, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2517 [2023-11-26 11:58:13,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:13,903 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:58:13,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:58:13,904 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:58:13,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,937 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:14,236 INFO L175 MemorySlicer]: Split 584 memory accesses to 5 slices as follows [2, 5, 466, 5, 106]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 104 writes are split as follows [0, 1, 98, 1, 4]. [2023-11-26 11:58:14,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:14,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:14,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:14,402 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:14,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:14,434 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:14,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:58:14,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:58:14,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:58:14,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:58:14,463 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:14,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:14,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:14,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:14,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:58:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-26 11:58:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-26 11:58:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-26 11:58:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-26 11:58:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-26 11:58:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2023-11-26 11:58:14,536 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2023-11-26 11:58:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 11:58:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 11:58:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 11:58:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 11:58:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-26 11:58:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 11:58:14,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 11:58:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-26 11:58:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-26 11:58:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-26 11:58:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-26 11:58:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-26 11:58:14,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-26 11:58:14,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-26 11:58:14,548 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-26 11:58:14,549 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-26 11:58:14,549 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-26 11:58:14,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:58:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:58:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:58:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:58:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:58:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:58:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 11:58:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:58:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-26 11:58:14,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:58:14,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:58:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 11:58:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 11:58:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 11:58:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:58:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 11:58:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 11:58:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 11:58:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 11:58:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-26 11:58:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:58:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 11:58:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 11:58:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 11:58:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-26 11:58:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:58:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:58:14,903 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:58:14,906 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:58:15,003 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 11:58:15,042 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 11:58:15,071 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 11:58:15,110 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 11:58:15,128 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 11:58:26,322 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:58:26,693 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:58:26,693 INFO L309 CfgBuilder]: Removed 168 assume(true) statements. [2023-11-26 11:58:26,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:26 BoogieIcfgContainer [2023-11-26 11:58:26,695 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:58:26,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:58:26,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:58:26,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:58:26,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:58:12" (1/3) ... [2023-11-26 11:58:26,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c11f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:26, skipping insertion in model container [2023-11-26 11:58:26,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (2/3) ... [2023-11-26 11:58:26,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c11f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:26, skipping insertion in model container [2023-11-26 11:58:26,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:26" (3/3) ... [2023-11-26 11:58:26,706 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test10-3.i [2023-11-26 11:58:26,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:58:26,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1193 error locations. [2023-11-26 11:58:26,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:58:26,811 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=PETRI_NET, 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;@19c5ecac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:58:26,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1193 error locations. [2023-11-26 11:58:26,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 2221 states, 1016 states have (on average 2.4881889763779528) internal successors, (2528), 2207 states have internal predecessors, (2528), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-26 11:58:26,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-26 11:58:26,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:26,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-26 11:58:26,833 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1190 more)] === [2023-11-26 11:58:26,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:26,843 INFO L85 PathProgramCache]: Analyzing trace with hash 129068, now seen corresponding path program 1 times [2023-11-26 11:58:26,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:58:26,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103033487] [2023-11-26 11:58:26,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:26,856 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 [2023-11-26 11:58:26,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:58:26,861 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:58:26,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:58:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:27,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:58:27,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:27,354 INFO L378 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 [2023-11-26 11:58:27,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:27,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:27,367 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:58:27,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103033487] [2023-11-26 11:58:27,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103033487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:27,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:27,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:58:27,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776198105] [2023-11-26 11:58:27,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:27,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:27,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:58:27,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:27,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:27,417 INFO L87 Difference]: Start difference. First operand has 2221 states, 1016 states have (on average 2.4881889763779528) internal successors, (2528), 2207 states have internal predecessors, (2528), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-26 11:58:33,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:33,560 INFO L93 Difference]: Finished difference Result 2992 states and 3191 transitions. [2023-11-26 11:58:33,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:33,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-26 11:58:33,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:33,597 INFO L225 Difference]: With dead ends: 2992 [2023-11-26 11:58:33,597 INFO L226 Difference]: Without dead ends: 2991 [2023-11-26 11:58:33,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:33,601 INFO L413 NwaCegarLoop]: 1399 mSDtfsCounter, 2119 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 1692 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 1715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:33,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2129 Valid, 1872 Invalid, 1715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1692 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-26 11:58:33,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2023-11-26 11:58:33,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2334. [2023-11-26 11:58:33,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2334 states, 1153 states have (on average 2.2922810060711187) internal successors, (2643), 2318 states have internal predecessors, (2643), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 11:58:33,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2334 states to 2334 states and 2675 transitions. [2023-11-26 11:58:33,762 INFO L78 Accepts]: Start accepts. Automaton has 2334 states and 2675 transitions. Word has length 2 [2023-11-26 11:58:33,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:33,762 INFO L495 AbstractCegarLoop]: Abstraction has 2334 states and 2675 transitions. [2023-11-26 11:58:33,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-26 11:58:33,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2334 states and 2675 transitions. [2023-11-26 11:58:33,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-26 11:58:33,763 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:33,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-26 11:58:33,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:58:33,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:58:33,967 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1190 more)] === [2023-11-26 11:58:33,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:33,968 INFO L85 PathProgramCache]: Analyzing trace with hash 129069, now seen corresponding path program 1 times [2023-11-26 11:58:33,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:58:33,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112931717] [2023-11-26 11:58:33,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:33,969 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 [2023-11-26 11:58:33,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:58:33,970 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:58:33,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:58:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:34,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:58:34,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:34,219 INFO L378 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 [2023-11-26 11:58:34,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:34,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:34,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:58:34,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112931717] [2023-11-26 11:58:34,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112931717] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:34,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:34,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:58:34,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570767988] [2023-11-26 11:58:34,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:34,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:58:34,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:58:34,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:58:34,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:34,251 INFO L87 Difference]: Start difference. First operand 2334 states and 2675 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-26 11:58:43,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:43,509 INFO L93 Difference]: Finished difference Result 3385 states and 3826 transitions. [2023-11-26 11:58:43,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:58:43,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-26 11:58:43,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:43,529 INFO L225 Difference]: With dead ends: 3385 [2023-11-26 11:58:43,529 INFO L226 Difference]: Without dead ends: 3385 [2023-11-26 11:58:43,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:58:43,531 INFO L413 NwaCegarLoop]: 1696 mSDtfsCounter, 1143 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:58:43,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 2868 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-11-26 11:58:43,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2023-11-26 11:58:43,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 2715. [2023-11-26 11:58:43,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2715 states, 1532 states have (on average 2.231070496083551) internal successors, (3418), 2696 states have internal predecessors, (3418), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-26 11:58:43,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 3456 transitions. [2023-11-26 11:58:43,625 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 3456 transitions. Word has length 2 [2023-11-26 11:58:43,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:43,626 INFO L495 AbstractCegarLoop]: Abstraction has 2715 states and 3456 transitions. [2023-11-26 11:58:43,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-26 11:58:43,626 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 3456 transitions. [2023-11-26 11:58:43,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 11:58:43,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:43,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-26 11:58:43,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:58:43,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:58:43,830 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1190 more)] === [2023-11-26 11:58:43,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:43,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1060467978, now seen corresponding path program 1 times [2023-11-26 11:58:43,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:58:43,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491873673] [2023-11-26 11:58:43,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:43,832 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 [2023-11-26 11:58:43,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:58:43,834 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:58:43,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bdc366e-4b5f-4eb0-a93e-4fefa58157e1/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:58:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:44,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:58:44,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:44,108 INFO L378 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 [2023-11-26 11:58:44,115 INFO L378 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 [2023-11-26 11:58:44,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 11:58:44,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-26 11:58:44,207 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-26 11:58:44,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-26 11:58:44,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:44,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:44,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:58:44,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491873673] [2023-11-26 11:58:44,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491873673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:44,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:44,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:44,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132855916] [2023-11-26 11:58:44,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:44,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:44,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:58:44,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:44,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:44,249 INFO L87 Difference]: Start difference. First operand 2715 states and 3456 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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)