./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd --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 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:42:40,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:42:40,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-13 13:42:40,924 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:42:40,925 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:42:40,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:42:40,963 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:42:40,963 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:42:40,963 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:42:40,964 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:42:40,964 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:42:40,965 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:42:40,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:42:40,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:42:40,966 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:42:40,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:42:40,967 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:42:40,967 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:42:40,968 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:42:40,968 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:42:40,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:42:40,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:42:40,968 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 13:42:40,968 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 13:42:40,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:42:40,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:42:40,969 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:42:40,969 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:42:40,969 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:42:40,969 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:42:40,969 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:42:40,969 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:42:40,969 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:42:40,970 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:42:40,970 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:42:40,970 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:42:40,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:42:40,970 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:42:40,970 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:42:40,970 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:42:40,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:42:40,970 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:42:40,970 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:42:40,970 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:42:40,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:42:40,970 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_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd 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 -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-11-13 13:42:41,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:42:41,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:42:41,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:42:41,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:42:41,306 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:42:41,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-2.i Unable to find full path for "g++" [2024-11-13 13:42:43,380 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:42:43,759 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:42:43,760 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-2.i [2024-11-13 13:42:43,776 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/data/aa685f4bc/eadb9bc615ae46be86b14b7006b35fbd/FLAGcfb6da0f6 [2024-11-13 13:42:43,790 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/data/aa685f4bc/eadb9bc615ae46be86b14b7006b35fbd [2024-11-13 13:42:43,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:42:43,793 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:42:43,794 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:42:43,794 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:42:43,799 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:42:43,800 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:43" (1/1) ... [2024-11-13 13:42:43,801 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e708d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:43, skipping insertion in model container [2024-11-13 13:42:43,801 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:43" (1/1) ... [2024-11-13 13:42:43,843 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:42:44,332 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,393 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,400 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,404 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,417 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,453 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,453 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,456 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,456 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,458 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,461 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,463 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,464 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,465 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,470 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:44,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:42:44,491 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) [2024-11-13 13:42:44,491 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@522dc361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:44, skipping insertion in model container [2024-11-13 13:42:44,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:42:44,492 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-13 13:42:44,494 INFO L158 Benchmark]: Toolchain (without parser) took 699.65ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 70.8MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:42:44,494 INFO L158 Benchmark]: CDTParser took 1.61ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 73.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:42:44,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 697.27ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 70.8MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:42:44,501 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.61ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 73.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 697.27ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 70.8MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 831]: 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_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd --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 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:42:47,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:42:47,244 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-13 13:42:47,249 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:42:47,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:42:47,316 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:42:47,317 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:42:47,317 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:42:47,317 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:42:47,317 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:42:47,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:42:47,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:42:47,318 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:42:47,318 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:42:47,318 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:42:47,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:42:47,319 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:42:47,319 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:42:47,319 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:42:47,319 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:42:47,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:42:47,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:42:47,323 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 13:42:47,323 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 13:42:47,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:42:47,324 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:42:47,324 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:42:47,324 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 13:42:47,324 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:42:47,324 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 13:42:47,324 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:42:47,324 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:42:47,324 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:42:47,324 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:42:47,324 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:42:47,325 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:42:47,325 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:42:47,325 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:42:47,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:42:47,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:42:47,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:42:47,325 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 13:42:47,325 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 13:42:47,325 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:42:47,325 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:42:47,325 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:42:47,326 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:42:47,326 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_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd 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 -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-11-13 13:42:47,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:42:47,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:42:47,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:42:47,663 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:42:47,667 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:42:47,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-2.i Unable to find full path for "g++" [2024-11-13 13:42:49,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:42:50,093 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:42:50,094 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-2.i [2024-11-13 13:42:50,121 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/data/2b163056b/ac103302eefe43208f72dbfd9435490e/FLAG366108f98 [2024-11-13 13:42:50,147 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/data/2b163056b/ac103302eefe43208f72dbfd9435490e [2024-11-13 13:42:50,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:42:50,153 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:42:50,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:42:50,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:42:50,161 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:42:50,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:50" (1/1) ... [2024-11-13 13:42:50,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61494b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:50, skipping insertion in model container [2024-11-13 13:42:50,166 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:50" (1/1) ... [2024-11-13 13:42:50,220 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:42:50,746 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,783 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,788 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,793 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,802 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,852 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,852 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,856 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,856 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,858 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,862 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,864 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,865 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,866 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,875 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:50,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:42:50,905 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-13 13:42:50,931 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:42:50,980 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,000 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,003 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,006 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,012 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,057 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,058 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,060 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,060 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,066 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,072 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,073 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,074 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,074 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,078 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:42:51,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:42:51,085 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:42:51,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:42:51,295 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:42:51,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:51 WrapperNode [2024-11-13 13:42:51,296 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:42:51,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:42:51,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:42:51,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:42:51,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:51" (1/1) ... [2024-11-13 13:42:51,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:51" (1/1) ... [2024-11-13 13:42:51,441 INFO L138 Inliner]: procedures = 210, calls = 273, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1005 [2024-11-13 13:42:51,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:42:51,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:42:51,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:42:51,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:42:51,457 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:51" (1/1) ... [2024-11-13 13:42:51,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:51" (1/1) ... [2024-11-13 13:42:51,473 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:51" (1/1) ... [2024-11-13 13:42:51,587 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 34, 218]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 4, 50]. [2024-11-13 13:42:51,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:51" (1/1) ... [2024-11-13 13:42:51,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:51" (1/1) ... [2024-11-13 13:42:51,650 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:51" (1/1) ... [2024-11-13 13:42:51,659 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:51" (1/1) ... [2024-11-13 13:42:51,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:51" (1/1) ... [2024-11-13 13:42:51,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:51" (1/1) ... [2024-11-13 13:42:51,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:42:51,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:42:51,684 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:42:51,684 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:42:51,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:51" (1/1) ... [2024-11-13 13:42:51,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:42:51,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:42:51,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:42:51,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:42:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-13 13:42:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-13 13:42:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-13 13:42:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 13:42:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 13:42:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-13 13:42:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-13 13:42:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-13 13:42:51,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-13 13:42:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-13 13:42:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-13 13:42:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-13 13:42:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 13:42:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 13:42:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 13:42:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 13:42:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 13:42:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 13:42:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-13 13:42:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 13:42:51,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 13:42:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 13:42:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-13 13:42:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 13:42:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:42:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 13:42:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 13:42:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 13:42:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:42:51,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:42:52,037 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:42:52,039 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:43:00,605 INFO L? ?]: Removed 134 outVars from TransFormulas that were not future-live. [2024-11-13 13:43:00,606 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:43:00,626 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:43:00,627 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-11-13 13:43:00,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:43:00 BoogieIcfgContainer [2024-11-13 13:43:00,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:43:00,633 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:43:00,633 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:43:00,638 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:43:00,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:42:50" (1/3) ... [2024-11-13 13:43:00,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601ceb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:43:00, skipping insertion in model container [2024-11-13 13:43:00,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:51" (2/3) ... [2024-11-13 13:43:00,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601ceb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:43:00, skipping insertion in model container [2024-11-13 13:43:00,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:43:00" (3/3) ... [2024-11-13 13:43:00,642 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test2-2.i [2024-11-13 13:43:00,655 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:43:00,656 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_nondet_test2-2.i that has 4 procedures, 207 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2024-11-13 13:43:00,699 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:43:00,712 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;@323670da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:43:00,712 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 13:43:00,718 INFO L276 IsEmpty]: Start isEmpty. Operand has 199 states, 192 states have (on average 1.6666666666666667) internal successors, (320), 194 states have internal predecessors, (320), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:43:00,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 13:43:00,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:00,725 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-13 13:43:00,725 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:00,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:00,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1665189, now seen corresponding path program 1 times [2024-11-13 13:43:00,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:00,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1678897591] [2024-11-13 13:43:00,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:00,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:00,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:00,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:00,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:43:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:00,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:43:00,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:01,109 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 [2024-11-13 13:43:01,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:01,115 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:43:01,116 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:01,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678897591] [2024-11-13 13:43:01,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678897591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:01,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:01,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:43:01,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395488421] [2024-11-13 13:43:01,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:01,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:43:01,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:01,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:43:01,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-13 13:43:01,156 INFO L87 Difference]: Start difference. First operand has 199 states, 192 states have (on average 1.6666666666666667) internal successors, (320), 194 states have internal predecessors, (320), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2024-11-13 13:43:05,440 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 [] [2024-11-13 13:43:05,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:05,824 INFO L93 Difference]: Finished difference Result 296 states and 385 transitions. [2024-11-13 13:43:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:43:05,832 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 [2024-11-13 13:43:05,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:05,841 INFO L225 Difference]: With dead ends: 296 [2024-11-13 13:43:05,841 INFO L226 Difference]: Without dead ends: 293 [2024-11-13 13:43:05,843 INFO L431 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 [2024-11-13 13:43:05,846 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 125 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 386 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:05,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 483 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 386 Unchecked, 4.6s Time] [2024-11-13 13:43:05,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-13 13:43:05,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 196. [2024-11-13 13:43:05,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 190 states have (on average 1.3) internal successors, (247), 191 states have internal predecessors, (247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:43:05,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 253 transitions. [2024-11-13 13:43:05,914 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 253 transitions. Word has length 4 [2024-11-13 13:43:05,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:05,914 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 253 transitions. [2024-11-13 13:43:05,914 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) [2024-11-13 13:43:05,915 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 253 transitions. [2024-11-13 13:43:05,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 13:43:05,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:05,917 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:43:05,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 13:43:06,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:06,118 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:06,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:06,119 INFO L85 PathProgramCache]: Analyzing trace with hash 490437271, now seen corresponding path program 1 times [2024-11-13 13:43:06,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:06,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115958197] [2024-11-13 13:43:06,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:06,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:06,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:06,122 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:06,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:43:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:06,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:43:06,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:06,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:06,542 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:43:06,542 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:06,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115958197] [2024-11-13 13:43:06,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115958197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:06,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:06,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:43:06,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222801433] [2024-11-13 13:43:06,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:06,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:43:06,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:06,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:43:06,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:43:06,545 INFO L87 Difference]: Start difference. First operand 196 states and 253 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-13 13:43:07,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:07,584 INFO L93 Difference]: Finished difference Result 318 states and 410 transitions. [2024-11-13 13:43:07,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:43:07,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2024-11-13 13:43:07,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:07,587 INFO L225 Difference]: With dead ends: 318 [2024-11-13 13:43:07,587 INFO L226 Difference]: Without dead ends: 318 [2024-11-13 13:43:07,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:43:07,588 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 148 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:07,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 467 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 13:43:07,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-13 13:43:07,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 285. [2024-11-13 13:43:07,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 279 states have (on average 1.3010752688172043) internal successors, (363), 280 states have internal predecessors, (363), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:43:07,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 369 transitions. [2024-11-13 13:43:07,629 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 369 transitions. Word has length 14 [2024-11-13 13:43:07,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:07,629 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 369 transitions. [2024-11-13 13:43:07,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-13 13:43:07,633 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 369 transitions. [2024-11-13 13:43:07,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 13:43:07,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:07,633 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:43:07,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:43:07,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:07,834 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:07,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:07,835 INFO L85 PathProgramCache]: Analyzing trace with hash 492284313, now seen corresponding path program 1 times [2024-11-13 13:43:07,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:07,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2019459839] [2024-11-13 13:43:07,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:07,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:07,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:07,838 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:07,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:43:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:08,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:43:08,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:08,230 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 [2024-11-13 13:43:08,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:08,231 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:43:08,231 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:08,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019459839] [2024-11-13 13:43:08,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019459839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:08,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:08,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:43:08,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428087664] [2024-11-13 13:43:08,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:08,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:43:08,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:08,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:43:08,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-13 13:43:08,233 INFO L87 Difference]: Start difference. First operand 285 states and 369 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-13 13:43:12,487 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 [] [2024-11-13 13:43:14,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:43:14,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:14,562 INFO L93 Difference]: Finished difference Result 363 states and 468 transitions. [2024-11-13 13:43:14,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:43:14,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-11-13 13:43:14,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:14,571 INFO L225 Difference]: With dead ends: 363 [2024-11-13 13:43:14,571 INFO L226 Difference]: Without dead ends: 361 [2024-11-13 13:43:14,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-13 13:43:14,572 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 90 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 355 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:14,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 480 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 1 Unknown, 355 Unchecked, 6.3s Time] [2024-11-13 13:43:14,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-13 13:43:14,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 334. [2024-11-13 13:43:14,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 328 states have (on average 1.298780487804878) internal successors, (426), 329 states have internal predecessors, (426), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:43:14,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 432 transitions. [2024-11-13 13:43:14,589 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 432 transitions. Word has length 14 [2024-11-13 13:43:14,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:14,589 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 432 transitions. [2024-11-13 13:43:14,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-13 13:43:14,590 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 432 transitions. [2024-11-13 13:43:14,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 13:43:14,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:14,591 INFO L215 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] [2024-11-13 13:43:14,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:43:14,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:14,795 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:14,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:14,795 INFO L85 PathProgramCache]: Analyzing trace with hash -880198464, now seen corresponding path program 1 times [2024-11-13 13:43:14,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:14,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2128658649] [2024-11-13 13:43:14,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:14,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:14,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:14,798 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:14,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:43:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:14,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:43:14,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:15,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:15,188 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:43:15,189 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:15,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128658649] [2024-11-13 13:43:15,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128658649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:15,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:15,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:43:15,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391153814] [2024-11-13 13:43:15,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:15,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:43:15,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:15,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:43:15,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:43:15,192 INFO L87 Difference]: Start difference. First operand 334 states and 432 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-13 13:43:19,504 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 [] [2024-11-13 13:43:22,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:22,408 INFO L93 Difference]: Finished difference Result 369 states and 474 transitions. [2024-11-13 13:43:22,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:43:22,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2024-11-13 13:43:22,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:22,414 INFO L225 Difference]: With dead ends: 369 [2024-11-13 13:43:22,414 INFO L226 Difference]: Without dead ends: 365 [2024-11-13 13:43:22,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:43:22,419 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 150 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:22,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 738 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2024-11-13 13:43:22,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-13 13:43:22,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 332. [2024-11-13 13:43:22,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 326 states have (on average 1.2975460122699387) internal successors, (423), 327 states have internal predecessors, (423), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:43:22,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 429 transitions. [2024-11-13 13:43:22,446 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 429 transitions. Word has length 23 [2024-11-13 13:43:22,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:22,446 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 429 transitions. [2024-11-13 13:43:22,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-13 13:43:22,447 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 429 transitions. [2024-11-13 13:43:22,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-13 13:43:22,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:22,450 INFO L215 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] [2024-11-13 13:43:22,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 13:43:22,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:22,650 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:22,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:22,651 INFO L85 PathProgramCache]: Analyzing trace with hash 2060889468, now seen corresponding path program 1 times [2024-11-13 13:43:22,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:22,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [553457844] [2024-11-13 13:43:22,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:22,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:22,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:22,653 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:22,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:43:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:22,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:43:22,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:22,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:22,929 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:43:22,929 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:22,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553457844] [2024-11-13 13:43:22,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553457844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:22,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:22,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:43:22,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790757770] [2024-11-13 13:43:22,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:22,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:43:22,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:22,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:43:22,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:43:22,931 INFO L87 Difference]: Start difference. First operand 332 states and 429 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-13 13:43:23,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:23,121 INFO L93 Difference]: Finished difference Result 392 states and 489 transitions. [2024-11-13 13:43:23,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:43:23,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2024-11-13 13:43:23,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:23,124 INFO L225 Difference]: With dead ends: 392 [2024-11-13 13:43:23,124 INFO L226 Difference]: Without dead ends: 392 [2024-11-13 13:43:23,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:43:23,125 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 9 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 451 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 [2024-11-13 13:43:23,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 451 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:43:23,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-13 13:43:23,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2024-11-13 13:43:23,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 386 states have (on average 1.2512953367875648) internal successors, (483), 387 states have internal predecessors, (483), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:43:23,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 489 transitions. [2024-11-13 13:43:23,144 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 489 transitions. Word has length 49 [2024-11-13 13:43:23,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:23,145 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 489 transitions. [2024-11-13 13:43:23,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-13 13:43:23,145 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 489 transitions. [2024-11-13 13:43:23,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-13 13:43:23,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:23,146 INFO L215 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] [2024-11-13 13:43:23,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:43:23,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:23,347 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:23,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:23,347 INFO L85 PathProgramCache]: Analyzing trace with hash 827553920, now seen corresponding path program 1 times [2024-11-13 13:43:23,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:23,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109021674] [2024-11-13 13:43:23,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:23,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:23,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:23,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:23,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:43:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:23,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:43:23,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:23,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:23,668 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:43:23,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:23,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109021674] [2024-11-13 13:43:23,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109021674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:23,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:23,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:43:23,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052953642] [2024-11-13 13:43:23,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:23,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:43:23,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:23,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:43:23,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:43:23,670 INFO L87 Difference]: Start difference. First operand 392 states and 489 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-11-13 13:43:23,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:23,858 INFO L93 Difference]: Finished difference Result 341 states and 405 transitions. [2024-11-13 13:43:23,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:43:23,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2024-11-13 13:43:23,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:23,861 INFO L225 Difference]: With dead ends: 341 [2024-11-13 13:43:23,861 INFO L226 Difference]: Without dead ends: 341 [2024-11-13 13:43:23,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:43:23,862 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 32 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 646 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 [2024-11-13 13:43:23,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 646 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:43:23,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-13 13:43:23,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-11-13 13:43:23,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 335 states have (on average 1.191044776119403) internal successors, (399), 336 states have internal predecessors, (399), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:43:23,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 405 transitions. [2024-11-13 13:43:23,872 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 405 transitions. Word has length 49 [2024-11-13 13:43:23,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:23,873 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 405 transitions. [2024-11-13 13:43:23,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2024-11-13 13:43:23,873 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 405 transitions. [2024-11-13 13:43:23,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-13 13:43:23,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:23,875 INFO L215 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] [2024-11-13 13:43:23,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 13:43:24,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:24,075 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:24,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:24,076 INFO L85 PathProgramCache]: Analyzing trace with hash -2094851278, now seen corresponding path program 1 times [2024-11-13 13:43:24,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:24,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [384528034] [2024-11-13 13:43:24,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:24,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:24,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:24,079 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:24,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 13:43:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:24,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 13:43:24,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:24,299 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 13:43:24,300 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 13:43:24,300 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 13:43:24,307 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 [2024-11-13 13:43:24,436 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:43:24,437 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 [2024-11-13 13:43:24,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:43:24,538 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:43:24,538 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:24,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384528034] [2024-11-13 13:43:24,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384528034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:24,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:24,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:43:24,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104661573] [2024-11-13 13:43:24,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:24,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:43:24,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:24,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:43:24,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:43:24,544 INFO L87 Difference]: Start difference. First operand 341 states and 405 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-11-13 13:43:25,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:25,333 INFO L93 Difference]: Finished difference Result 342 states and 416 transitions. [2024-11-13 13:43:25,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:43:25,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 49 [2024-11-13 13:43:25,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:25,336 INFO L225 Difference]: With dead ends: 342 [2024-11-13 13:43:25,336 INFO L226 Difference]: Without dead ends: 339 [2024-11-13 13:43:25,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:43:25,338 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 108 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:25,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 914 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 13:43:25,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-13 13:43:25,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 292. [2024-11-13 13:43:25,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 286 states have (on average 1.2132867132867133) internal successors, (347), 287 states have internal predecessors, (347), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:43:25,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 353 transitions. [2024-11-13 13:43:25,349 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 353 transitions. Word has length 49 [2024-11-13 13:43:25,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:25,349 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 353 transitions. [2024-11-13 13:43:25,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-11-13 13:43:25,350 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 353 transitions. [2024-11-13 13:43:25,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 13:43:25,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:25,352 INFO L215 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] [2024-11-13 13:43:25,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 13:43:25,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:25,552 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:25,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:25,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1447431932, now seen corresponding path program 1 times [2024-11-13 13:43:25,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:25,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1069825061] [2024-11-13 13:43:25,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:25,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:25,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:25,555 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:25,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 13:43:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:26,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:43:26,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:26,066 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 13:43:26,069 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:43:26,069 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:26,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069825061] [2024-11-13 13:43:26,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069825061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:26,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:26,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:43:26,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137954123] [2024-11-13 13:43:26,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:26,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:43:26,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:26,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:43:26,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:43:26,072 INFO L87 Difference]: Start difference. First operand 292 states and 353 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 13:43:26,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:26,258 INFO L93 Difference]: Finished difference Result 332 states and 393 transitions. [2024-11-13 13:43:26,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:43:26,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2024-11-13 13:43:26,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:26,260 INFO L225 Difference]: With dead ends: 332 [2024-11-13 13:43:26,260 INFO L226 Difference]: Without dead ends: 332 [2024-11-13 13:43:26,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:43:26,261 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 8 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 429 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 [2024-11-13 13:43:26,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 429 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:43:26,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-13 13:43:26,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2024-11-13 13:43:26,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 326 states have (on average 1.187116564417178) internal successors, (387), 327 states have internal predecessors, (387), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:43:26,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 393 transitions. [2024-11-13 13:43:26,300 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 393 transitions. Word has length 85 [2024-11-13 13:43:26,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:26,300 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 393 transitions. [2024-11-13 13:43:26,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 13:43:26,300 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 393 transitions. [2024-11-13 13:43:26,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 13:43:26,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:26,302 INFO L215 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] [2024-11-13 13:43:26,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-13 13:43:26,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:26,502 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:26,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:26,503 INFO L85 PathProgramCache]: Analyzing trace with hash 885960706, now seen corresponding path program 1 times [2024-11-13 13:43:26,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:26,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1129766593] [2024-11-13 13:43:26,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:26,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:26,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:26,506 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:26,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 13:43:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:26,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:43:26,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:27,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 13:43:27,400 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:43:27,400 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:27,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129766593] [2024-11-13 13:43:27,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129766593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:27,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:27,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:43:27,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105990487] [2024-11-13 13:43:27,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:27,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:43:27,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:27,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:43:27,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:43:27,403 INFO L87 Difference]: Start difference. First operand 332 states and 393 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 13:43:31,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:43:35,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:43:37,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:37,432 INFO L93 Difference]: Finished difference Result 350 states and 426 transitions. [2024-11-13 13:43:37,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:43:37,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2024-11-13 13:43:37,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:37,437 INFO L225 Difference]: With dead ends: 350 [2024-11-13 13:43:37,437 INFO L226 Difference]: Without dead ends: 350 [2024-11-13 13:43:37,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:43:37,437 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 416 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:37,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 409 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2024-11-13 13:43:37,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-13 13:43:37,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 281. [2024-11-13 13:43:37,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 275 states have (on average 1.2) internal successors, (330), 276 states have internal predecessors, (330), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:43:37,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 336 transitions. [2024-11-13 13:43:37,446 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 336 transitions. Word has length 85 [2024-11-13 13:43:37,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:37,446 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 336 transitions. [2024-11-13 13:43:37,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 13:43:37,447 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 336 transitions. [2024-11-13 13:43:37,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 13:43:37,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:37,448 INFO L215 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, 1, 1, 1, 1, 1, 1] [2024-11-13 13:43:37,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 13:43:37,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:37,649 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:37,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:37,650 INFO L85 PathProgramCache]: Analyzing trace with hash 347626615, now seen corresponding path program 1 times [2024-11-13 13:43:37,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:37,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [993925076] [2024-11-13 13:43:37,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:37,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:37,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:37,653 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:37,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 13:43:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:38,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:43:38,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:38,239 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-13 13:43:38,240 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:43:38,241 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:38,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993925076] [2024-11-13 13:43:38,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993925076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:38,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:38,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:43:38,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191732852] [2024-11-13 13:43:38,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:38,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:43:38,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:38,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:43:38,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:43:38,243 INFO L87 Difference]: Start difference. First operand 281 states and 336 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 13:43:38,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:38,384 INFO L93 Difference]: Finished difference Result 247 states and 280 transitions. [2024-11-13 13:43:38,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:43:38,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 94 [2024-11-13 13:43:38,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:38,386 INFO L225 Difference]: With dead ends: 247 [2024-11-13 13:43:38,386 INFO L226 Difference]: Without dead ends: 247 [2024-11-13 13:43:38,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:43:38,387 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 32 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:38,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 607 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:43:38,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-13 13:43:38,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2024-11-13 13:43:38,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 241 states have (on average 1.1369294605809128) internal successors, (274), 242 states have internal predecessors, (274), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:43:38,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 280 transitions. [2024-11-13 13:43:38,395 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 280 transitions. Word has length 94 [2024-11-13 13:43:38,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:38,395 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 280 transitions. [2024-11-13 13:43:38,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 13:43:38,395 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 280 transitions. [2024-11-13 13:43:38,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 13:43:38,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:38,397 INFO L215 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, 1, 1, 1, 1, 1, 1] [2024-11-13 13:43:38,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 13:43:38,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:38,597 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:38,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:38,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1888806999, now seen corresponding path program 1 times [2024-11-13 13:43:38,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:38,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13049508] [2024-11-13 13:43:38,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:38,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:38,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:38,600 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:38,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 13:43:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:39,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:43:39,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 13:43:39,237 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:43:39,237 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:39,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13049508] [2024-11-13 13:43:39,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13049508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:39,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:39,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:43:39,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335421385] [2024-11-13 13:43:39,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:39,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:43:39,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:39,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:43:39,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:43:39,239 INFO L87 Difference]: Start difference. First operand 247 states and 280 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 13:43:43,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:43:47,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:43:49,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:43:51,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:43:52,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:43:53,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:53,216 INFO L93 Difference]: Finished difference Result 249 states and 282 transitions. [2024-11-13 13:43:53,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:43:53,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 94 [2024-11-13 13:43:53,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:53,221 INFO L225 Difference]: With dead ends: 249 [2024-11-13 13:43:53,221 INFO L226 Difference]: Without dead ends: 249 [2024-11-13 13:43:53,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:43:53,221 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 204 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:53,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 402 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 2 Unknown, 0 Unchecked, 14.0s Time] [2024-11-13 13:43:53,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-13 13:43:53,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 248. [2024-11-13 13:43:53,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 242 states have (on average 1.1363636363636365) internal successors, (275), 243 states have internal predecessors, (275), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 13:43:53,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 281 transitions. [2024-11-13 13:43:53,229 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 281 transitions. Word has length 94 [2024-11-13 13:43:53,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:53,229 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 281 transitions. [2024-11-13 13:43:53,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 13:43:53,230 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 281 transitions. [2024-11-13 13:43:53,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 13:43:53,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:53,231 INFO L215 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, 1, 1, 1, 1, 1, 1] [2024-11-13 13:43:53,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 13:43:53,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:53,432 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:53,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:53,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1886959957, now seen corresponding path program 1 times [2024-11-13 13:43:53,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:53,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1890699920] [2024-11-13 13:43:53,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:53,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:53,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:53,434 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:53,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 13:43:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:53,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:43:53,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:53,966 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 13:43:53,966 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:43:53,967 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:53,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890699920] [2024-11-13 13:43:53,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890699920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:53,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:53,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:43:53,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494687599] [2024-11-13 13:43:53,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:53,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:43:53,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:53,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:43:53,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:43:53,969 INFO L87 Difference]: Start difference. First operand 248 states and 281 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 13:43:54,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:54,025 INFO L93 Difference]: Finished difference Result 251 states and 285 transitions. [2024-11-13 13:43:54,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:43:54,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 94 [2024-11-13 13:43:54,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:54,028 INFO L225 Difference]: With dead ends: 251 [2024-11-13 13:43:54,029 INFO L226 Difference]: Without dead ends: 251 [2024-11-13 13:43:54,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:43:54,029 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:54,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 674 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:43:54,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-11-13 13:43:54,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2024-11-13 13:43:54,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 244 states have (on average 1.139344262295082) internal successors, (278), 246 states have internal predecessors, (278), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 13:43:54,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 285 transitions. [2024-11-13 13:43:54,037 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 285 transitions. Word has length 94 [2024-11-13 13:43:54,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:54,037 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 285 transitions. [2024-11-13 13:43:54,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 13:43:54,038 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 285 transitions. [2024-11-13 13:43:54,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-13 13:43:54,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:54,039 INFO L215 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, 1, 1, 1, 1, 1, 1] [2024-11-13 13:43:54,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 13:43:54,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:54,239 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:54,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:54,240 INFO L85 PathProgramCache]: Analyzing trace with hash 632108365, now seen corresponding path program 1 times [2024-11-13 13:43:54,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:54,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [987491596] [2024-11-13 13:43:54,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:54,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:54,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:54,243 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:54,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 13:43:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:43:54,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:43:54,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:54,914 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 13:43:54,914 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:43:55,132 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 13:43:55,132 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:55,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987491596] [2024-11-13 13:43:55,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987491596] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:43:55,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:43:55,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-13 13:43:55,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048118776] [2024-11-13 13:43:55,133 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:43:55,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:43:55,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:55,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:43:55,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:43:55,136 INFO L87 Difference]: Start difference. First operand 251 states and 285 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 13:43:55,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:55,365 INFO L93 Difference]: Finished difference Result 262 states and 302 transitions. [2024-11-13 13:43:55,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:43:55,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 96 [2024-11-13 13:43:55,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:55,367 INFO L225 Difference]: With dead ends: 262 [2024-11-13 13:43:55,368 INFO L226 Difference]: Without dead ends: 262 [2024-11-13 13:43:55,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:43:55,368 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 4 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:55,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1115 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:43:55,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-13 13:43:55,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 260. [2024-11-13 13:43:55,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 252 states have (on average 1.1587301587301588) internal successors, (292), 254 states have internal predecessors, (292), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 13:43:55,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 300 transitions. [2024-11-13 13:43:55,378 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 300 transitions. Word has length 96 [2024-11-13 13:43:55,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:55,378 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 300 transitions. [2024-11-13 13:43:55,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 13:43:55,378 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 300 transitions. [2024-11-13 13:43:55,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-13 13:43:55,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:55,380 INFO L215 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, 1, 1, 1, 1, 1, 1] [2024-11-13 13:43:55,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 13:43:55,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:55,581 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:55,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:55,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2086563541, now seen corresponding path program 2 times [2024-11-13 13:43:55,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:55,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1732342673] [2024-11-13 13:43:55,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:43:55,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:55,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:55,585 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:55,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 13:43:56,189 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:43:56,189 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:43:56,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:43:56,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:56,357 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 13:43:56,357 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:43:56,654 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 13:43:56,654 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:56,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732342673] [2024-11-13 13:43:56,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732342673] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:43:56,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:43:56,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-13 13:43:56,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943566800] [2024-11-13 13:43:56,654 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:43:56,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:43:56,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:56,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:43:56,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:43:56,656 INFO L87 Difference]: Start difference. First operand 260 states and 300 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 13:43:57,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:57,153 INFO L93 Difference]: Finished difference Result 268 states and 310 transitions. [2024-11-13 13:43:57,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 13:43:57,154 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 100 [2024-11-13 13:43:57,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:57,156 INFO L225 Difference]: With dead ends: 268 [2024-11-13 13:43:57,156 INFO L226 Difference]: Without dead ends: 266 [2024-11-13 13:43:57,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:43:57,157 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 5 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 904 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 [2024-11-13 13:43:57,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 904 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:43:57,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-13 13:43:57,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 264. [2024-11-13 13:43:57,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 256 states have (on average 1.1640625) internal successors, (298), 258 states have internal predecessors, (298), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 13:43:57,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 305 transitions. [2024-11-13 13:43:57,166 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 305 transitions. Word has length 100 [2024-11-13 13:43:57,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:57,166 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 305 transitions. [2024-11-13 13:43:57,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 13:43:57,167 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 305 transitions. [2024-11-13 13:43:57,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 13:43:57,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:57,168 INFO L215 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] [2024-11-13 13:43:57,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 13:43:57,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:57,369 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:57,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:57,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1531764011, now seen corresponding path program 3 times [2024-11-13 13:43:57,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:57,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [989580484] [2024-11-13 13:43:57,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 13:43:57,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:57,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:57,373 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:57,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 13:43:57,940 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-13 13:43:57,941 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:43:57,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:43:57,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:58,851 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 13:43:58,852 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 13:43:58,852 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-13 13:43:58,855 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 [2024-11-13 13:43:59,001 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:43:59,001 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 [2024-11-13 13:43:59,045 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 13:43:59,046 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:43:59,046 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:59,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989580484] [2024-11-13 13:43:59,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989580484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:59,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:59,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:43:59,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853428962] [2024-11-13 13:43:59,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:59,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:43:59,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:59,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:43:59,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:43:59,047 INFO L87 Difference]: Start difference. First operand 264 states and 305 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 13:43:59,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:43:59,441 INFO L93 Difference]: Finished difference Result 332 states and 380 transitions. [2024-11-13 13:43:59,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:43:59,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 104 [2024-11-13 13:43:59,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:43:59,446 INFO L225 Difference]: With dead ends: 332 [2024-11-13 13:43:59,446 INFO L226 Difference]: Without dead ends: 332 [2024-11-13 13:43:59,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:43:59,447 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 252 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:43:59,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 693 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 13:43:59,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-13 13:43:59,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 266. [2024-11-13 13:43:59,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 258 states have (on average 1.1627906976744187) internal successors, (300), 260 states have internal predecessors, (300), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 13:43:59,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 307 transitions. [2024-11-13 13:43:59,459 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 307 transitions. Word has length 104 [2024-11-13 13:43:59,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:43:59,461 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 307 transitions. [2024-11-13 13:43:59,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 13:43:59,461 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 307 transitions. [2024-11-13 13:43:59,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-13 13:43:59,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:43:59,465 INFO L215 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] [2024-11-13 13:43:59,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-13 13:43:59,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:59,665 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:43:59,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:43:59,666 INFO L85 PathProgramCache]: Analyzing trace with hash -2108154495, now seen corresponding path program 1 times [2024-11-13 13:43:59,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:43:59,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [428995426] [2024-11-13 13:43:59,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:43:59,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:43:59,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:43:59,670 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:43:59,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 13:44:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:44:00,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:44:00,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:44:00,535 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 13:44:00,535 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:44:01,014 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 13:44:01,014 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:44:01,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428995426] [2024-11-13 13:44:01,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428995426] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:44:01,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:44:01,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-13 13:44:01,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177356761] [2024-11-13 13:44:01,015 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:44:01,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 13:44:01,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:44:01,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 13:44:01,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:44:01,016 INFO L87 Difference]: Start difference. First operand 266 states and 307 transitions. Second operand has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 14 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 13:44:01,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:44:01,858 INFO L93 Difference]: Finished difference Result 278 states and 323 transitions. [2024-11-13 13:44:01,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 13:44:01,859 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 14 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 138 [2024-11-13 13:44:01,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:44:01,860 INFO L225 Difference]: With dead ends: 278 [2024-11-13 13:44:01,860 INFO L226 Difference]: Without dead ends: 274 [2024-11-13 13:44:01,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-13 13:44:01,861 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 7 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:44:01,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2233 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:44:01,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-13 13:44:01,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 272. [2024-11-13 13:44:01,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 264 states have (on average 1.1742424242424243) internal successors, (310), 266 states have internal predecessors, (310), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 13:44:01,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 317 transitions. [2024-11-13 13:44:01,870 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 317 transitions. Word has length 138 [2024-11-13 13:44:01,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:44:01,871 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 317 transitions. [2024-11-13 13:44:01,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.714285714285714) internal successors, (136), 14 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 13:44:01,871 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 317 transitions. [2024-11-13 13:44:01,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-13 13:44:01,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:44:01,874 INFO L215 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] [2024-11-13 13:44:01,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 13:44:02,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:44:02,074 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:44:02,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:44:02,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1933783999, now seen corresponding path program 2 times [2024-11-13 13:44:02,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:44:02,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [528755639] [2024-11-13 13:44:02,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:44:02,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:44:02,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:44:02,078 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:44:02,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 13:44:02,815 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:44:02,815 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:44:02,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 13:44:02,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:44:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 82 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-13 13:44:03,184 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:44:03,927 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-13 13:44:03,927 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:44:03,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528755639] [2024-11-13 13:44:03,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528755639] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:44:03,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:44:03,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-13 13:44:03,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087053617] [2024-11-13 13:44:03,927 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:44:03,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 13:44:03,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:44:03,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 13:44:03,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-11-13 13:44:03,931 INFO L87 Difference]: Start difference. First operand 272 states and 317 transitions. Second operand has 18 states, 18 states have (on average 8.0) internal successors, (144), 18 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 13:44:05,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:44:05,683 INFO L93 Difference]: Finished difference Result 286 states and 336 transitions. [2024-11-13 13:44:05,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 13:44:05,684 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.0) internal successors, (144), 18 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 144 [2024-11-13 13:44:05,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:44:05,685 INFO L225 Difference]: With dead ends: 286 [2024-11-13 13:44:05,685 INFO L226 Difference]: Without dead ends: 280 [2024-11-13 13:44:05,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=324, Invalid=606, Unknown=0, NotChecked=0, Total=930 [2024-11-13 13:44:05,686 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 9 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2687 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:44:05,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2687 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 13:44:05,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-13 13:44:05,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2024-11-13 13:44:05,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 272 states have (on average 1.1654411764705883) internal successors, (317), 274 states have internal predecessors, (317), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 13:44:05,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 324 transitions. [2024-11-13 13:44:05,696 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 324 transitions. Word has length 144 [2024-11-13 13:44:05,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:44:05,696 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 324 transitions. [2024-11-13 13:44:05,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.0) internal successors, (144), 18 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 13:44:05,697 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 324 transitions. [2024-11-13 13:44:05,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-13 13:44:05,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:44:05,699 INFO L215 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] [2024-11-13 13:44:05,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-13 13:44:05,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:44:05,899 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 13:44:05,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:44:05,900 INFO L85 PathProgramCache]: Analyzing trace with hash 420045889, now seen corresponding path program 3 times [2024-11-13 13:44:05,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:44:05,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [179403241] [2024-11-13 13:44:05,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 13:44:05,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:44:05,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:44:05,903 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:44:05,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c9d8ab-b5cd-4e40-82b9-188fd8040a1e/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process