./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:57:18,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:57:18,431 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-28 03:57:18,438 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:57:18,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:57:18,487 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:57:18,488 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:57:18,488 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:57:18,489 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:57:18,489 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:57:18,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:57:18,489 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:57:18,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:57:18,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:57:18,493 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:57:18,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:57:18,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:57:18,494 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:57:18,494 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:57:18,495 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:57:18,495 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:57:18,495 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:57:18,495 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:57:18,495 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:57:18,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:57:18,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:57:18,495 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:57:18,496 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:57:18,496 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:57:18,496 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:57:18,496 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:57:18,496 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:57:18,496 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:57:18,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:57:18,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:57:18,497 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:57:18,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:57:18,497 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:57:18,497 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:57:18,497 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:57:18,497 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:57:18,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:57:18,498 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:57:18,498 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:57:18,498 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:57:18,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:57:18,498 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:57:18,498 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:57:18,498 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:57:18,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:57:18,498 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB 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-memcleanup) ) 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 -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-28 03:57:18,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:57:18,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:57:18,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:57:18,950 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:57:18,951 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:57:18,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i [2024-11-28 03:57:22,696 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/data/969550910/e418a49525c646fabd52f5bde27754c8/FLAG688f5c358 [2024-11-28 03:57:23,176 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:57:23,177 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i [2024-11-28 03:57:23,197 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/data/969550910/e418a49525c646fabd52f5bde27754c8/FLAG688f5c358 [2024-11-28 03:57:23,219 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/data/969550910/e418a49525c646fabd52f5bde27754c8 [2024-11-28 03:57:23,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:57:23,224 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:57:23,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:57:23,226 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:57:23,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:57:23,234 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:57:23" (1/1) ... [2024-11-28 03:57:23,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17914b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:23, skipping insertion in model container [2024-11-28 03:57:23,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:57:23" (1/1) ... [2024-11-28 03:57:23,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:57:23,977 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,032 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,038 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,043 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,054 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,108 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,109 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,114 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,114 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,119 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,122 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,124 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,125 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,134 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,135 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,145 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,146 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,148 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,154 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,162 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:24,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:57:24,208 ERROR L321 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) [2024-11-28 03:57:24,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@767aa191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:24, skipping insertion in model container [2024-11-28 03:57:24,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:57:24,211 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 03:57:24,214 INFO L158 Benchmark]: Toolchain (without parser) took 988.66ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 69.2MB in the end (delta: 20.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:57:24,215 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 83.9MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:57:24,215 INFO L158 Benchmark]: CACSL2BoogieTranslator took 984.97ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 69.2MB in the end (delta: 19.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:57:24,218 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 83.9MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 984.97ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 69.2MB in the end (delta: 19.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:57:27,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:57:27,848 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-28 03:57:27,857 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:57:27,857 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:57:27,889 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:57:27,890 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:57:27,891 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:57:27,891 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:57:27,891 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:57:27,892 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:57:27,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:57:27,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:57:27,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:57:27,894 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:57:27,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:57:27,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:57:27,896 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:57:27,896 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:57:27,897 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:57:27,897 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:57:27,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:57:27,897 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:57:27,897 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:57:27,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:57:27,898 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:57:27,898 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:57:27,898 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:57:27,898 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:57:27,898 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:57:27,898 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:57:27,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:57:27,898 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:57:27,899 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:57:27,899 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:57:27,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:57:27,899 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:57:27,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:57:27,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:57:27,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:57:27,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:57:27,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:57:27,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:57:27,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:57:27,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:57:27,900 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:57:27,900 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:57:27,900 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:57:27,900 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:57:27,900 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:57:27,901 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:57:27,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:57:27,901 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB 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-memcleanup) ) 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 -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-28 03:57:28,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:57:28,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:57:28,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:57:28,400 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:57:28,401 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:57:28,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i [2024-11-28 03:57:32,093 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/data/36cec9686/f01dc7ec69524a22b3070afb101cb861/FLAG38b596225 [2024-11-28 03:57:32,493 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:57:32,493 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i [2024-11-28 03:57:32,525 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/data/36cec9686/f01dc7ec69524a22b3070afb101cb861/FLAG38b596225 [2024-11-28 03:57:32,558 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/data/36cec9686/f01dc7ec69524a22b3070afb101cb861 [2024-11-28 03:57:32,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:57:32,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:57:32,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:57:32,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:57:32,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:57:32,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:57:32" (1/1) ... [2024-11-28 03:57:32,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66555ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:32, skipping insertion in model container [2024-11-28 03:57:32,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:57:32" (1/1) ... [2024-11-28 03:57:32,671 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:57:33,370 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,440 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,447 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,454 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,467 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,538 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,539 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,544 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,544 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,549 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,551 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,553 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,555 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,563 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,565 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,569 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,571 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,572 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,573 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,581 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:57:33,612 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 03:57:33,639 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:57:33,683 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,711 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,715 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,725 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,739 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,776 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,777 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,781 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,781 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,789 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,791 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,792 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,794 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,800 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,802 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,805 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,807 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,808 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,809 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,823 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:57:33,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:57:33,844 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:57:34,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:57:34,104 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:57:34,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34 WrapperNode [2024-11-28 03:57:34,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:57:34,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:57:34,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:57:34,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:57:34,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34" (1/1) ... [2024-11-28 03:57:34,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34" (1/1) ... [2024-11-28 03:57:34,257 INFO L138 Inliner]: procedures = 180, calls = 325, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1149 [2024-11-28 03:57:34,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:57:34,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:57:34,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:57:34,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:57:34,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34" (1/1) ... [2024-11-28 03:57:34,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34" (1/1) ... [2024-11-28 03:57:34,327 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34" (1/1) ... [2024-11-28 03:57:34,494 INFO L175 MemorySlicer]: Split 302 memory accesses to 3 slices as follows [34, 2, 266]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0]. The 62 writes are split as follows [4, 0, 58]. [2024-11-28 03:57:34,494 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34" (1/1) ... [2024-11-28 03:57:34,494 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34" (1/1) ... [2024-11-28 03:57:34,576 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34" (1/1) ... [2024-11-28 03:57:34,578 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34" (1/1) ... [2024-11-28 03:57:34,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34" (1/1) ... [2024-11-28 03:57:34,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34" (1/1) ... [2024-11-28 03:57:34,614 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34" (1/1) ... [2024-11-28 03:57:34,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:57:34,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:57:34,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:57:34,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:57:34,637 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34" (1/1) ... [2024-11-28 03:57:34,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:57:34,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:57:34,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:57:34,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:57:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 03:57:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 03:57:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 03:57:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 03:57:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 03:57:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 03:57:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:57:34,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:57:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 03:57:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 03:57:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 03:57:34,743 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 03:57:34,743 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 03:57:34,743 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 03:57:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:57:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:57:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:57:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:57:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:57:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:57:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:57:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:57:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 03:57:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 03:57:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 03:57:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 03:57:34,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:57:34,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:57:34,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 03:57:34,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 03:57:34,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:57:34,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:57:35,168 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:57:35,171 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:57:46,650 INFO L? ?]: Removed 143 outVars from TransFormulas that were not future-live. [2024-11-28 03:57:46,650 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:57:46,687 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:57:46,691 INFO L312 CfgBuilder]: Removed 41 assume(true) statements. [2024-11-28 03:57:46,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:57:46 BoogieIcfgContainer [2024-11-28 03:57:46,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:57:46,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:57:46,697 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:57:46,704 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:57:46,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:57:32" (1/3) ... [2024-11-28 03:57:46,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1fe16d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:57:46, skipping insertion in model container [2024-11-28 03:57:46,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:57:34" (2/3) ... [2024-11-28 03:57:46,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1fe16d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:57:46, skipping insertion in model container [2024-11-28 03:57:46,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:57:46" (3/3) ... [2024-11-28 03:57:46,712 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test3-2.i [2024-11-28 03:57:46,736 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:57:46,738 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_nondet_test3-2.i that has 5 procedures, 246 locations, 1 initial locations, 43 loop locations, and 2 error locations. [2024-11-28 03:57:46,828 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:57:46,852 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@497dfc4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:57:46,854 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 03:57:46,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 238 states, 228 states have (on average 1.644736842105263) internal successors, (375), 231 states have internal predecessors, (375), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:57:46,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-28 03:57:46,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:46,869 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-28 03:57:46,870 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:57:46,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:46,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1665367, now seen corresponding path program 1 times [2024-11-28 03:57:46,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:57:46,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1812314196] [2024-11-28 03:57:46,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:46,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:46,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:57:46,899 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:57:46,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:57:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:47,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:57:47,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:57:47,386 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_16| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16|)))) is different from true [2024-11-28 03:57:47,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:57:47,399 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:57:47,403 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:57:47,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812314196] [2024-11-28 03:57:47,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812314196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:57:47,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:57:47,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:57:47,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119468832] [2024-11-28 03:57:47,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:47,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:57:47,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:57:47,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:57:47,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 03:57:47,464 INFO L87 Difference]: Start difference. First operand has 238 states, 228 states have (on average 1.644736842105263) internal successors, (375), 231 states have internal predecessors, (375), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-11-28 03:57:52,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:57:54,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:57:54,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:54,137 INFO L93 Difference]: Finished difference Result 364 states and 476 transitions. [2024-11-28 03:57:54,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:57:54,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2024-11-28 03:57:54,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:54,161 INFO L225 Difference]: With dead ends: 364 [2024-11-28 03:57:54,162 INFO L226 Difference]: Without dead ends: 361 [2024-11-28 03:57:54,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 03:57:54,168 INFO L435 NwaCegarLoop]: 300 mSDtfsCounter, 160 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 477 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:54,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 581 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 1 Unknown, 477 Unchecked, 6.6s Time] [2024-11-28 03:57:54,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-28 03:57:54,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 235. [2024-11-28 03:57:54,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 226 states have (on average 1.2964601769911503) internal successors, (293), 228 states have internal predecessors, (293), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:57:54,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 303 transitions. [2024-11-28 03:57:54,285 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 303 transitions. Word has length 4 [2024-11-28 03:57:54,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:54,286 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 303 transitions. [2024-11-28 03:57:54,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-11-28 03:57:54,287 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 303 transitions. [2024-11-28 03:57:54,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 03:57:54,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:54,292 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:57:54,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:57:54,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:54,493 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:57:54,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:54,494 INFO L85 PathProgramCache]: Analyzing trace with hash -372073889, now seen corresponding path program 1 times [2024-11-28 03:57:54,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:57:54,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1905032276] [2024-11-28 03:57:54,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:54,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:54,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:57:54,498 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:57:54,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:57:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:54,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:57:54,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:57:55,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:57:55,065 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:57:55,065 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:57:55,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905032276] [2024-11-28 03:57:55,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905032276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:57:55,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:57:55,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:57:55,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796975822] [2024-11-28 03:57:55,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:55,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:57:55,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:57:55,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:57:55,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:57:55,069 INFO L87 Difference]: Start difference. First operand 235 states and 303 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:57:59,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:58:03,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:58:04,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:04,032 INFO L93 Difference]: Finished difference Result 384 states and 497 transitions. [2024-11-28 03:58:04,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:58:04,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-28 03:58:04,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:04,041 INFO L225 Difference]: With dead ends: 384 [2024-11-28 03:58:04,041 INFO L226 Difference]: Without dead ends: 384 [2024-11-28 03:58:04,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:04,045 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 184 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:04,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 792 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 110 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2024-11-28 03:58:04,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-28 03:58:04,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 353. [2024-11-28 03:58:04,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 343 states have (on average 1.2973760932944607) internal successors, (445), 346 states have internal predecessors, (445), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:58:04,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 457 transitions. [2024-11-28 03:58:04,075 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 457 transitions. Word has length 16 [2024-11-28 03:58:04,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:04,075 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 457 transitions. [2024-11-28 03:58:04,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:04,076 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 457 transitions. [2024-11-28 03:58:04,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 03:58:04,076 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:04,077 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:04,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:58:04,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:04,281 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:58:04,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:04,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1426676485, now seen corresponding path program 1 times [2024-11-28 03:58:04,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:04,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1618487089] [2024-11-28 03:58:04,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:04,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:04,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:04,286 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:04,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:58:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:04,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:58:04,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:04,863 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_17| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17|)))) is different from true [2024-11-28 03:58:04,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:04,864 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:58:04,864 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:04,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618487089] [2024-11-28 03:58:04,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618487089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:04,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:04,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:58:04,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878529433] [2024-11-28 03:58:04,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:04,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:58:04,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:04,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:58:04,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 03:58:04,868 INFO L87 Difference]: Start difference. First operand 353 states and 457 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-28 03:58:09,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:58:10,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:10,074 INFO L93 Difference]: Finished difference Result 447 states and 577 transitions. [2024-11-28 03:58:10,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:58:10,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2024-11-28 03:58:10,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:10,085 INFO L225 Difference]: With dead ends: 447 [2024-11-28 03:58:10,085 INFO L226 Difference]: Without dead ends: 439 [2024-11-28 03:58:10,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-28 03:58:10,087 INFO L435 NwaCegarLoop]: 296 mSDtfsCounter, 88 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 407 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:10,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 577 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 407 Unchecked, 5.2s Time] [2024-11-28 03:58:10,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-28 03:58:10,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 399. [2024-11-28 03:58:10,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 388 states have (on average 1.2963917525773196) internal successors, (503), 391 states have internal predecessors, (503), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:58:10,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 517 transitions. [2024-11-28 03:58:10,135 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 517 transitions. Word has length 16 [2024-11-28 03:58:10,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:10,135 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 517 transitions. [2024-11-28 03:58:10,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-28 03:58:10,135 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 517 transitions. [2024-11-28 03:58:10,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 03:58:10,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:10,137 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:10,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:58:10,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:10,338 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:58:10,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:10,339 INFO L85 PathProgramCache]: Analyzing trace with hash 700544482, now seen corresponding path program 1 times [2024-11-28 03:58:10,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:10,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [624318915] [2024-11-28 03:58:10,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:10,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:10,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:10,345 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:10,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:58:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:10,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:58:10,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:10,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:10,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:58:10,921 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:10,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624318915] [2024-11-28 03:58:10,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624318915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:10,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:10,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:58:10,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020575503] [2024-11-28 03:58:10,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:10,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:58:10,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:10,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:58:10,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:10,927 INFO L87 Difference]: Start difference. First operand 399 states and 517 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:11,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:11,225 INFO L93 Difference]: Finished difference Result 426 states and 529 transitions. [2024-11-28 03:58:11,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:11,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-28 03:58:11,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:11,230 INFO L225 Difference]: With dead ends: 426 [2024-11-28 03:58:11,230 INFO L226 Difference]: Without dead ends: 426 [2024-11-28 03:58:11,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:11,232 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 23 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:11,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 795 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:58:11,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-28 03:58:11,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 423. [2024-11-28 03:58:11,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 412 states have (on average 1.2427184466019416) internal successors, (512), 415 states have internal predecessors, (512), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:58:11,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 526 transitions. [2024-11-28 03:58:11,258 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 526 transitions. Word has length 51 [2024-11-28 03:58:11,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:11,259 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 526 transitions. [2024-11-28 03:58:11,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:11,259 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 526 transitions. [2024-11-28 03:58:11,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 03:58:11,265 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:11,266 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:11,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:58:11,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:11,467 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:58:11,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:11,469 INFO L85 PathProgramCache]: Analyzing trace with hash 834557988, now seen corresponding path program 1 times [2024-11-28 03:58:11,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:11,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2029059295] [2024-11-28 03:58:11,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:11,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:11,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:11,475 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:11,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:58:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:11,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:58:11,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:11,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:11,844 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:58:11,844 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:11,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029059295] [2024-11-28 03:58:11,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029059295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:11,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:11,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:58:11,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261668448] [2024-11-28 03:58:11,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:11,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:58:11,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:11,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:58:11,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:11,849 INFO L87 Difference]: Start difference. First operand 423 states and 526 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:12,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:12,082 INFO L93 Difference]: Finished difference Result 387 states and 469 transitions. [2024-11-28 03:58:12,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:58:12,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-28 03:58:12,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:12,086 INFO L225 Difference]: With dead ends: 387 [2024-11-28 03:58:12,086 INFO L226 Difference]: Without dead ends: 387 [2024-11-28 03:58:12,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:12,088 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 27 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:12,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 792 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:58:12,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-28 03:58:12,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2024-11-28 03:58:12,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 376 states have (on average 1.2101063829787233) internal successors, (455), 379 states have internal predecessors, (455), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:58:12,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 469 transitions. [2024-11-28 03:58:12,114 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 469 transitions. Word has length 51 [2024-11-28 03:58:12,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:12,115 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 469 transitions. [2024-11-28 03:58:12,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:12,116 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 469 transitions. [2024-11-28 03:58:12,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 03:58:12,120 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:12,120 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:12,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:58:12,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:12,324 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:58:12,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:12,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1311774294, now seen corresponding path program 1 times [2024-11-28 03:58:12,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:12,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1959128531] [2024-11-28 03:58:12,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:12,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:12,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:12,330 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:12,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:58:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:12,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:58:12,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:12,639 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:58:12,640 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:58:12,641 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:58:12,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 39 [2024-11-28 03:58:12,805 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:12,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-28 03:58:12,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:12,943 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:58:12,943 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:12,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959128531] [2024-11-28 03:58:12,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959128531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:12,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:12,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:58:12,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133492356] [2024-11-28 03:58:12,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:12,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:12,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:12,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:12,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:12,947 INFO L87 Difference]: Start difference. First operand 387 states and 469 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:14,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:14,206 INFO L93 Difference]: Finished difference Result 396 states and 488 transitions. [2024-11-28 03:58:14,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:14,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-28 03:58:14,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:14,213 INFO L225 Difference]: With dead ends: 396 [2024-11-28 03:58:14,213 INFO L226 Difference]: Without dead ends: 393 [2024-11-28 03:58:14,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:58:14,217 INFO L435 NwaCegarLoop]: 280 mSDtfsCounter, 112 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:14,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1094 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:58:14,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-28 03:58:14,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 344. [2024-11-28 03:58:14,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 334 states have (on average 1.2305389221556886) internal successors, (411), 337 states have internal predecessors, (411), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:58:14,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 423 transitions. [2024-11-28 03:58:14,237 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 423 transitions. Word has length 51 [2024-11-28 03:58:14,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:14,240 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 423 transitions. [2024-11-28 03:58:14,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:14,240 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 423 transitions. [2024-11-28 03:58:14,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 03:58:14,244 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:14,244 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:14,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:58:14,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:14,445 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:58:14,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:14,446 INFO L85 PathProgramCache]: Analyzing trace with hash 840728322, now seen corresponding path program 1 times [2024-11-28 03:58:14,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:14,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1821776779] [2024-11-28 03:58:14,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:14,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:14,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:14,450 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:14,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:58:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:15,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:58:15,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:15,276 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:58:15,280 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:58:15,281 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:15,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821776779] [2024-11-28 03:58:15,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821776779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:15,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:15,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:58:15,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189620912] [2024-11-28 03:58:15,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:15,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:58:15,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:15,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:58:15,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:58:15,284 INFO L87 Difference]: Start difference. First operand 344 states and 423 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:58:15,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:15,548 INFO L93 Difference]: Finished difference Result 384 states and 463 transitions. [2024-11-28 03:58:15,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:58:15,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 88 [2024-11-28 03:58:15,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:15,551 INFO L225 Difference]: With dead ends: 384 [2024-11-28 03:58:15,552 INFO L226 Difference]: Without dead ends: 384 [2024-11-28 03:58:15,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:58:15,553 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 8 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:15,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 519 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:58:15,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-28 03:58:15,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-11-28 03:58:15,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 374 states have (on average 1.2058823529411764) internal successors, (451), 377 states have internal predecessors, (451), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:58:15,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 463 transitions. [2024-11-28 03:58:15,571 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 463 transitions. Word has length 88 [2024-11-28 03:58:15,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:15,572 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 463 transitions. [2024-11-28 03:58:15,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:58:15,572 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 463 transitions. [2024-11-28 03:58:15,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 03:58:15,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:15,575 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:15,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 03:58:15,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:15,776 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:58:15,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:15,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1768059136, now seen corresponding path program 1 times [2024-11-28 03:58:15,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:15,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243040771] [2024-11-28 03:58:15,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:15,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:15,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:15,781 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:15,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:58:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:16,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:58:16,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:16,582 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:58:16,582 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:58:16,583 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:16,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243040771] [2024-11-28 03:58:16,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243040771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:16,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:16,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:58:16,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683354882] [2024-11-28 03:58:16,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:16,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:58:16,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:16,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:58:16,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:16,586 INFO L87 Difference]: Start difference. First operand 384 states and 463 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:58:16,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:16,845 INFO L93 Difference]: Finished difference Result 348 states and 405 transitions. [2024-11-28 03:58:16,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:16,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 88 [2024-11-28 03:58:16,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:16,849 INFO L225 Difference]: With dead ends: 348 [2024-11-28 03:58:16,849 INFO L226 Difference]: Without dead ends: 348 [2024-11-28 03:58:16,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:16,851 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 32 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:16,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 745 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:58:16,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-28 03:58:16,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2024-11-28 03:58:16,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 338 states have (on average 1.1627218934911243) internal successors, (393), 341 states have internal predecessors, (393), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 03:58:16,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 405 transitions. [2024-11-28 03:58:16,875 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 405 transitions. Word has length 88 [2024-11-28 03:58:16,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:16,876 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 405 transitions. [2024-11-28 03:58:16,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:58:16,876 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 405 transitions. [2024-11-28 03:58:16,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 03:58:16,879 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:16,879 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:16,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:58:17,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:17,080 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:58:17,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:17,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1865230350, now seen corresponding path program 1 times [2024-11-28 03:58:17,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:17,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1557245658] [2024-11-28 03:58:17,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:17,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:17,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:17,086 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:17,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:58:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:17,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:58:17,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:17,875 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:58:17,878 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:58:17,879 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:17,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557245658] [2024-11-28 03:58:17,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557245658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:17,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:17,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:58:17,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448183899] [2024-11-28 03:58:17,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:17,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:58:17,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:17,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:58:17,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:17,882 INFO L87 Difference]: Start difference. First operand 348 states and 405 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:58:17,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:17,964 INFO L93 Difference]: Finished difference Result 351 states and 409 transitions. [2024-11-28 03:58:17,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:58:17,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 88 [2024-11-28 03:58:17,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:17,971 INFO L225 Difference]: With dead ends: 351 [2024-11-28 03:58:17,971 INFO L226 Difference]: Without dead ends: 351 [2024-11-28 03:58:17,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:17,974 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 0 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:17,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 812 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:58:17,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-28 03:58:17,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2024-11-28 03:58:17,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 340 states have (on average 1.1647058823529413) internal successors, (396), 344 states have internal predecessors, (396), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 03:58:17,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 409 transitions. [2024-11-28 03:58:17,994 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 409 transitions. Word has length 88 [2024-11-28 03:58:17,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:17,997 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 409 transitions. [2024-11-28 03:58:17,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:58:17,997 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 409 transitions. [2024-11-28 03:58:17,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 03:58:17,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:17,999 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:18,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 03:58:18,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:18,200 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:58:18,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:18,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1283917396, now seen corresponding path program 1 times [2024-11-28 03:58:18,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:18,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [287424298] [2024-11-28 03:58:18,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:18,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:18,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:18,204 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:18,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:58:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:18,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:58:18,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:19,098 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:58:19,100 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:58:19,383 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:58:19,384 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:19,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287424298] [2024-11-28 03:58:19,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287424298] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:58:19,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:58:19,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 03:58:19,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397392344] [2024-11-28 03:58:19,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:58:19,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:58:19,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:19,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:58:19,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:58:19,387 INFO L87 Difference]: Start difference. First operand 351 states and 409 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:58:19,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:19,767 INFO L93 Difference]: Finished difference Result 362 states and 426 transitions. [2024-11-28 03:58:19,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:58:19,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 90 [2024-11-28 03:58:19,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:19,772 INFO L225 Difference]: With dead ends: 362 [2024-11-28 03:58:19,772 INFO L226 Difference]: Without dead ends: 362 [2024-11-28 03:58:19,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:58:19,774 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 4 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:19,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1345 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:58:19,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-28 03:58:19,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 360. [2024-11-28 03:58:19,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 348 states have (on average 1.1781609195402298) internal successors, (410), 352 states have internal predecessors, (410), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-28 03:58:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 424 transitions. [2024-11-28 03:58:19,793 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 424 transitions. Word has length 90 [2024-11-28 03:58:19,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:19,793 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 424 transitions. [2024-11-28 03:58:19,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:58:19,794 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 424 transitions. [2024-11-28 03:58:19,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 03:58:19,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:19,795 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:19,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 03:58:19,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:19,996 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:58:19,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:19,997 INFO L85 PathProgramCache]: Analyzing trace with hash 43315534, now seen corresponding path program 2 times [2024-11-28 03:58:19,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:19,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762030296] [2024-11-28 03:58:19,998 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:58:19,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:19,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:20,003 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:20,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:58:20,836 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:58:20,836 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:58:20,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:58:20,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:21,041 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 03:58:21,041 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:58:21,392 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 03:58:21,393 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:21,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762030296] [2024-11-28 03:58:21,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762030296] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:58:21,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:58:21,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 03:58:21,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629512775] [2024-11-28 03:58:21,394 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:58:21,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:58:21,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:21,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:58:21,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:58:21,396 INFO L87 Difference]: Start difference. First operand 360 states and 424 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:58:21,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:21,988 INFO L93 Difference]: Finished difference Result 368 states and 434 transitions. [2024-11-28 03:58:21,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:58:21,990 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 94 [2024-11-28 03:58:21,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:21,993 INFO L225 Difference]: With dead ends: 368 [2024-11-28 03:58:21,993 INFO L226 Difference]: Without dead ends: 366 [2024-11-28 03:58:21,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:58:21,994 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 5 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:21,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1088 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:58:21,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-28 03:58:22,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 364. [2024-11-28 03:58:22,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 352 states have (on average 1.1818181818181819) internal successors, (416), 356 states have internal predecessors, (416), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 03:58:22,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 429 transitions. [2024-11-28 03:58:22,011 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 429 transitions. Word has length 94 [2024-11-28 03:58:22,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:22,012 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 429 transitions. [2024-11-28 03:58:22,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:58:22,012 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 429 transitions. [2024-11-28 03:58:22,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 03:58:22,014 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:22,014 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:22,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 03:58:22,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:22,215 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:58:22,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:22,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1674315826, now seen corresponding path program 3 times [2024-11-28 03:58:22,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:22,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1034499236] [2024-11-28 03:58:22,216 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:58:22,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:22,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:22,219 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:22,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:58:22,978 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 03:58:22,978 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:58:22,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:58:23,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:24,059 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:58:24,060 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:58:24,061 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:58:24,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 39 [2024-11-28 03:58:24,242 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:58:24,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-28 03:58:24,296 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 03:58:24,296 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:58:24,296 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:24,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034499236] [2024-11-28 03:58:24,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034499236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:24,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:24,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:58:24,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329289045] [2024-11-28 03:58:24,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:24,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:58:24,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:24,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:58:24,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:24,298 INFO L87 Difference]: Start difference. First operand 364 states and 429 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:58:24,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:24,992 INFO L93 Difference]: Finished difference Result 476 states and 568 transitions. [2024-11-28 03:58:24,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:58:24,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 98 [2024-11-28 03:58:24,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:24,997 INFO L225 Difference]: With dead ends: 476 [2024-11-28 03:58:24,998 INFO L226 Difference]: Without dead ends: 476 [2024-11-28 03:58:24,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:58:24,999 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 335 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:24,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 778 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:58:25,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-28 03:58:25,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 366. [2024-11-28 03:58:25,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 354 states have (on average 1.1807909604519775) internal successors, (418), 358 states have internal predecessors, (418), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 03:58:25,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 431 transitions. [2024-11-28 03:58:25,021 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 431 transitions. Word has length 98 [2024-11-28 03:58:25,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:25,023 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 431 transitions. [2024-11-28 03:58:25,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:58:25,023 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 431 transitions. [2024-11-28 03:58:25,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 03:58:25,025 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:25,026 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:25,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 03:58:25,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:25,227 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:58:25,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:25,228 INFO L85 PathProgramCache]: Analyzing trace with hash 387123847, now seen corresponding path program 1 times [2024-11-28 03:58:25,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:25,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [248682485] [2024-11-28 03:58:25,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:25,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:25,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:25,234 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:25,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 03:58:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:25,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:58:26,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:26,641 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 03:58:26,641 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:58:26,641 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:26,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248682485] [2024-11-28 03:58:26,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248682485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:26,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:26,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:58:26,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655620893] [2024-11-28 03:58:26,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:26,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:58:26,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:26,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:58:26,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:26,643 INFO L87 Difference]: Start difference. First operand 366 states and 431 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:58:31,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:58:35,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 03:58:38,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:38,931 INFO L93 Difference]: Finished difference Result 531 states and 636 transitions. [2024-11-28 03:58:38,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:38,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 133 [2024-11-28 03:58:38,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:38,939 INFO L225 Difference]: With dead ends: 531 [2024-11-28 03:58:38,939 INFO L226 Difference]: Without dead ends: 531 [2024-11-28 03:58:38,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:38,940 INFO L435 NwaCegarLoop]: 303 mSDtfsCounter, 524 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:38,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 585 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 136 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2024-11-28 03:58:38,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-28 03:58:38,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 458. [2024-11-28 03:58:38,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 444 states have (on average 1.1801801801801801) internal successors, (524), 449 states have internal predecessors, (524), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:58:38,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 541 transitions. [2024-11-28 03:58:38,962 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 541 transitions. Word has length 133 [2024-11-28 03:58:38,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:38,963 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 541 transitions. [2024-11-28 03:58:38,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:58:38,964 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 541 transitions. [2024-11-28 03:58:38,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-28 03:58:38,966 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:38,966 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:38,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 03:58:39,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:39,168 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:58:39,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:39,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1513931723, now seen corresponding path program 1 times [2024-11-28 03:58:39,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:39,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [263661060] [2024-11-28 03:58:39,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:39,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:39,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:39,174 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:39,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 03:58:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:40,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:58:40,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:40,459 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 03:58:40,459 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:58:41,157 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 03:58:41,158 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:41,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263661060] [2024-11-28 03:58:41,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263661060] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:58:41,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:58:41,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-28 03:58:41,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202072017] [2024-11-28 03:58:41,159 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:58:41,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:58:41,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:41,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:58:41,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:58:41,161 INFO L87 Difference]: Start difference. First operand 458 states and 541 transitions. Second operand has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:58:42,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:42,329 INFO L93 Difference]: Finished difference Result 470 states and 557 transitions. [2024-11-28 03:58:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:58:42,331 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 141 [2024-11-28 03:58:42,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:42,334 INFO L225 Difference]: With dead ends: 470 [2024-11-28 03:58:42,335 INFO L226 Difference]: Without dead ends: 466 [2024-11-28 03:58:42,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:58:42,336 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 7 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:42,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2424 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:58:42,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-11-28 03:58:42,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 464. [2024-11-28 03:58:42,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 450 states have (on average 1.1866666666666668) internal successors, (534), 455 states have internal predecessors, (534), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:58:42,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 551 transitions. [2024-11-28 03:58:42,357 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 551 transitions. Word has length 141 [2024-11-28 03:58:42,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:42,358 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 551 transitions. [2024-11-28 03:58:42,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 14 states have internal predecessors, (138), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:58:42,359 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 551 transitions. [2024-11-28 03:58:42,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-28 03:58:42,361 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:42,362 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:42,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 03:58:42,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:42,563 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:58:42,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:42,565 INFO L85 PathProgramCache]: Analyzing trace with hash -764004555, now seen corresponding path program 2 times [2024-11-28 03:58:42,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:42,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [519996235] [2024-11-28 03:58:42,566 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:58:42,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:42,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:42,570 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:42,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 03:58:43,661 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:58:43,661 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:58:43,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:58:43,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:44,099 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 82 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 03:58:44,100 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:58:45,141 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-28 03:58:45,142 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:58:45,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519996235] [2024-11-28 03:58:45,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519996235] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:58:45,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:58:45,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-28 03:58:45,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376732667] [2024-11-28 03:58:45,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:58:45,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:58:45,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:58:45,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:58:45,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:58:45,146 INFO L87 Difference]: Start difference. First operand 464 states and 551 transitions. Second operand has 18 states, 18 states have (on average 8.11111111111111) internal successors, (146), 18 states have internal predecessors, (146), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:58:47,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:47,612 INFO L93 Difference]: Finished difference Result 478 states and 570 transitions. [2024-11-28 03:58:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 03:58:47,614 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.11111111111111) internal successors, (146), 18 states have internal predecessors, (146), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 147 [2024-11-28 03:58:47,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:47,617 INFO L225 Difference]: With dead ends: 478 [2024-11-28 03:58:47,617 INFO L226 Difference]: Without dead ends: 472 [2024-11-28 03:58:47,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=324, Invalid=606, Unknown=0, NotChecked=0, Total=930 [2024-11-28 03:58:47,618 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 10 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:47,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2705 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:58:47,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-28 03:58:47,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2024-11-28 03:58:47,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 458 states have (on average 1.1812227074235808) internal successors, (541), 463 states have internal predecessors, (541), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:58:47,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 558 transitions. [2024-11-28 03:58:47,638 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 558 transitions. Word has length 147 [2024-11-28 03:58:47,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:47,639 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 558 transitions. [2024-11-28 03:58:47,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.11111111111111) internal successors, (146), 18 states have internal predecessors, (146), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:58:47,639 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 558 transitions. [2024-11-28 03:58:47,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:58:47,642 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:47,642 INFO L218 NwaCegarLoop]: trace histogram [24, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:47,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 03:58:47,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:47,843 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 03:58:47,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:47,844 INFO L85 PathProgramCache]: Analyzing trace with hash 423987765, now seen corresponding path program 3 times [2024-11-28 03:58:47,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:58:47,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [929144702] [2024-11-28 03:58:47,845 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:58:47,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:47,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:47,848 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:47,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f2f7f9c-87b2-44fb-bda0-3cf7306bc85e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process