./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_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_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI --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 5577528c45849c92d31dcecadbfe6524610e7683d1e420d37b6f0ce59c6c59b8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:27:07,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:27:07,220 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-24 21:27:07,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:27:07,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:27:07,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:27:07,254 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:27:07,255 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:27:07,256 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:27:07,256 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:27:07,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:27:07,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:27:07,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:27:07,259 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:27:07,259 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:27:07,260 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:27:07,261 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:27:07,261 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:27:07,262 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:27:07,262 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:27:07,263 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:27:07,264 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:27:07,264 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:27:07,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:27:07,266 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:27:07,266 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:27:07,267 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:27:07,267 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:27:07,268 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:27:07,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:27:07,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:27:07,270 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:27:07,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:27:07,271 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:27:07,271 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:27:07,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:27:07,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:27:07,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:27:07,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:27:07,274 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:27:07,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:27:07,275 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_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5577528c45849c92d31dcecadbfe6524610e7683d1e420d37b6f0ce59c6c59b8 [2023-11-24 21:27:07,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:27:07,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:27:07,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:27:07,630 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:27:07,631 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:27:07,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-3.i [2023-11-24 21:27:10,785 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:27:11,163 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:27:11,164 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-3.i [2023-11-24 21:27:11,200 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/data/a2d088260/ad12d77aa7664fa58ca9ec4fbd0c7570/FLAGea4e79e3e [2023-11-24 21:27:11,216 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/data/a2d088260/ad12d77aa7664fa58ca9ec4fbd0c7570 [2023-11-24 21:27:11,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:27:11,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:27:11,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:27:11,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:27:11,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:27:11,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:27:11" (1/1) ... [2023-11-24 21:27:11,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed96777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:11, skipping insertion in model container [2023-11-24 21:27:11,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:27:11" (1/1) ... [2023-11-24 21:27:11,394 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:27:12,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:27:12,286 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) [2023-11-24 21:27:12,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4c4196d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:12, skipping insertion in model container [2023-11-24 21:27:12,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:27:12,287 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 21:27:12,293 INFO L158 Benchmark]: Toolchain (without parser) took 1068.29ms. Allocated memory was 138.4MB in the beginning and 172.0MB in the end (delta: 33.6MB). Free memory was 71.3MB in the beginning and 111.2MB in the end (delta: -39.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:27:12,294 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory is still 108.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:27:12,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1041.31ms. Allocated memory is still 172.0MB. Free memory was 141.8MB in the beginning and 111.2MB in the end (delta: 30.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-24 21:27:12,298 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 138.4MB. Free memory is still 108.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1041.31ms. Allocated memory is still 172.0MB. Free memory was 141.8MB in the beginning and 111.2MB in the end (delta: 30.7MB). Peak memory consumption was 29.4MB. 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_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI --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 5577528c45849c92d31dcecadbfe6524610e7683d1e420d37b6f0ce59c6c59b8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:27:14,784 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:27:14,913 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-24 21:27:14,922 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:27:14,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:27:14,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:27:14,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:27:14,995 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:27:14,996 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:27:15,001 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:27:15,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:27:15,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:27:15,004 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:27:15,006 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:27:15,006 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:27:15,007 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:27:15,007 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:27:15,008 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:27:15,008 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:27:15,009 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:27:15,010 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:27:15,011 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:27:15,011 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:27:15,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:27:15,012 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:27:15,012 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:27:15,013 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:27:15,013 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:27:15,014 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:27:15,014 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:27:15,016 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:27:15,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:27:15,017 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:27:15,017 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:27:15,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:27:15,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:27:15,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:27:15,020 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:27:15,020 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:27:15,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:27:15,021 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:27:15,021 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:27:15,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:27:15,022 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:27:15,022 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_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5577528c45849c92d31dcecadbfe6524610e7683d1e420d37b6f0ce59c6c59b8 [2023-11-24 21:27:15,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:27:15,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:27:15,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:27:15,496 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:27:15,497 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:27:15,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-3.i [2023-11-24 21:27:18,640 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:27:19,115 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:27:19,116 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test10-3.i [2023-11-24 21:27:19,143 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/data/a01e916e3/4e35ddcdcdd6452eb58bf93912436d2e/FLAGdad4a0499 [2023-11-24 21:27:19,163 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/data/a01e916e3/4e35ddcdcdd6452eb58bf93912436d2e [2023-11-24 21:27:19,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:27:19,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:27:19,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:27:19,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:27:19,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:27:19,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:27:19" (1/1) ... [2023-11-24 21:27:19,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15e43579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:19, skipping insertion in model container [2023-11-24 21:27:19,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:27:19" (1/1) ... [2023-11-24 21:27:19,284 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:27:20,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:27:20,265 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 21:27:20,286 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:27:20,522 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:27:20,529 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:27:20,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:27:20,795 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:27:20,804 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:27:20,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20 WrapperNode [2023-11-24 21:27:20,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:27:20,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:27:20,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:27:20,807 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:27:20,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:20,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,006 INFO L138 Inliner]: procedures = 180, calls = 624, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2517 [2023-11-24 21:27:21,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:27:21,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:27:21,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:27:21,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:27:21,021 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,055 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,384 INFO L175 MemorySlicer]: Split 584 memory accesses to 5 slices as follows [2, 5, 106, 466, 5]. 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, 4, 98, 1]. [2023-11-24 21:27:21,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,558 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,577 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:27:21,607 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:27:21,607 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:27:21,607 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:27:21,608 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (1/1) ... [2023-11-24 21:27:21,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:27:21,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:27:21,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:27:21,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:27:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-24 21:27:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-24 21:27:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-24 21:27:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-24 21:27:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-24 21:27:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2023-11-24 21:27:21,704 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2023-11-24 21:27:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 21:27:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 21:27:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-24 21:27:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-24 21:27:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-24 21:27:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 21:27:21,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 21:27:21,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-24 21:27:21,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-24 21:27:21,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-24 21:27:21,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-24 21:27:21,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-24 21:27:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-24 21:27:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-24 21:27:21,708 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-24 21:27:21,709 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-24 21:27:21,709 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-24 21:27:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:27:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:27:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:27:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:27:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 21:27:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 21:27:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-24 21:27:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:27:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 21:27:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:27:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:27:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 21:27:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 21:27:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-24 21:27:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:27:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 21:27:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 21:27:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 21:27:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 21:27:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-24 21:27:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:27:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:27:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 21:27:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 21:27:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-24 21:27:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:27:21,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:27:22,125 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:27:22,128 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:27:22,210 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:27:22,237 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:27:22,259 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:27:22,280 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:27:22,300 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:27:34,666 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:27:35,078 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:27:35,078 INFO L309 CfgBuilder]: Removed 168 assume(true) statements. [2023-11-24 21:27:35,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:27:35 BoogieIcfgContainer [2023-11-24 21:27:35,081 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:27:35,083 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:27:35,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:27:35,087 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:27:35,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:27:19" (1/3) ... [2023-11-24 21:27:35,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b1f2b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:27:35, skipping insertion in model container [2023-11-24 21:27:35,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:27:20" (2/3) ... [2023-11-24 21:27:35,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b1f2b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:27:35, skipping insertion in model container [2023-11-24 21:27:35,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:27:35" (3/3) ... [2023-11-24 21:27:35,093 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test10-3.i [2023-11-24 21:27:35,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:27:35,116 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1193 error locations. [2023-11-24 21:27:35,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:27:35,210 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;@657b8acf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:27:35,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1193 error locations. [2023-11-24 21:27:35,221 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) [2023-11-24 21:27:35,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 21:27:35,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:27:35,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 21:27:35,229 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)] === [2023-11-24 21:27:35,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:27:35,235 INFO L85 PathProgramCache]: Analyzing trace with hash 129068, now seen corresponding path program 1 times [2023-11-24 21:27:35,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:27:35,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366344401] [2023-11-24 21:27:35,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:27:35,254 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 [2023-11-24 21:27:35,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:27:35,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:27:35,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:27:35,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:27:35,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:27:35,667 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 [2023-11-24 21:27:35,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:27:35,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:27:35,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:27:35,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366344401] [2023-11-24 21:27:35,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366344401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:27:35,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:27:35,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:27:35,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197501260] [2023-11-24 21:27:35,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:27:35,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:27:35,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:27:35,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:27:35,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:27:35,727 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) [2023-11-24 21:27:42,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:27:42,330 INFO L93 Difference]: Finished difference Result 2992 states and 3191 transitions. [2023-11-24 21:27:42,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:27:42,335 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 [2023-11-24 21:27:42,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:27:42,376 INFO L225 Difference]: With dead ends: 2992 [2023-11-24 21:27:42,376 INFO L226 Difference]: Without dead ends: 2991 [2023-11-24 21:27:42,378 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 [2023-11-24 21:27:42,385 INFO L413 NwaCegarLoop]: 1399 mSDtfsCounter, 2119 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 1692 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 1715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:27:42,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2129 Valid, 1872 Invalid, 1715 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 1692 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-24 21:27:42,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2023-11-24 21:27:42,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2334. [2023-11-24 21:27:42,539 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) [2023-11-24 21:27:42,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2334 states to 2334 states and 2675 transitions. [2023-11-24 21:27:42,554 INFO L78 Accepts]: Start accepts. Automaton has 2334 states and 2675 transitions. Word has length 2 [2023-11-24 21:27:42,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:27:42,555 INFO L495 AbstractCegarLoop]: Abstraction has 2334 states and 2675 transitions. [2023-11-24 21:27:42,556 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) [2023-11-24 21:27:42,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2334 states and 2675 transitions. [2023-11-24 21:27:42,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 21:27:42,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:27:42,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 21:27:42,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/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)] Ended with exit code 0 [2023-11-24 21:27:42,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:42,761 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)] === [2023-11-24 21:27:42,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:27:42,762 INFO L85 PathProgramCache]: Analyzing trace with hash 129069, now seen corresponding path program 1 times [2023-11-24 21:27:42,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:27:42,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173073237] [2023-11-24 21:27:42,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:27:42,763 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 [2023-11-24 21:27:42,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:27:42,764 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:27:42,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:27:43,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:27:43,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:27:43,032 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 [2023-11-24 21:27:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:27:43,046 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:27:43,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:27:43,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173073237] [2023-11-24 21:27:43,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173073237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:27:43,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:27:43,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:27:43,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899172751] [2023-11-24 21:27:43,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:27:43,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:27:43,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:27:43,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:27:43,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:27:43,057 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) [2023-11-24 21:27:52,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:27:52,761 INFO L93 Difference]: Finished difference Result 3385 states and 3826 transitions. [2023-11-24 21:27:52,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:27:52,761 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 [2023-11-24 21:27:52,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:27:52,780 INFO L225 Difference]: With dead ends: 3385 [2023-11-24 21:27:52,781 INFO L226 Difference]: Without dead ends: 3385 [2023-11-24 21:27:52,781 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 [2023-11-24 21:27:52,782 INFO L413 NwaCegarLoop]: 1696 mSDtfsCounter, 1143 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s 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, 9.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:27:52,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 2868 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2023-11-24 21:27:52,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2023-11-24 21:27:52,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 2715. [2023-11-24 21:27:52,880 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) [2023-11-24 21:27:52,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 3456 transitions. [2023-11-24 21:27:52,894 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 3456 transitions. Word has length 2 [2023-11-24 21:27:52,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:27:52,894 INFO L495 AbstractCegarLoop]: Abstraction has 2715 states and 3456 transitions. [2023-11-24 21:27:52,895 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) [2023-11-24 21:27:52,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 3456 transitions. [2023-11-24 21:27:52,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 21:27:52,895 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:27:52,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 21:27:52,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:53,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:53,098 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)] === [2023-11-24 21:27:53,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:27:53,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1060467978, now seen corresponding path program 1 times [2023-11-24 21:27:53,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:27:53,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459603950] [2023-11-24 21:27:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:27:53,101 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 [2023-11-24 21:27:53,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:27:53,102 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:27:53,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_525597a0-e6d5-440a-9a92-94d7eccd8572/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:27:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:27:53,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 21:27:53,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:27:53,401 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 [2023-11-24 21:27:53,408 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 [2023-11-24 21:27:53,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 21:27:53,510 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 [2023-11-24 21:27:53,533 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 21:27:53,534 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 [2023-11-24 21:27:53,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:27:53,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:27:53,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:27:53,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459603950] [2023-11-24 21:27:53,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459603950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:27:53,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:27:53,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:27:53,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874675000] [2023-11-24 21:27:53,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:27:53,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:27:53,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:27:53,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:27:53,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:27:53,564 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)