./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:28:07,198 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:28:07,293 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-28 02:28:07,300 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:28:07,301 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:28:07,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:28:07,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:28:07,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:28:07,349 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:28:07,350 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:28:07,352 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:28:07,352 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:28:07,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:28:07,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:28:07,353 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:28:07,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:28:07,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:28:07,353 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:28:07,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:28:07,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:28:07,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:28:07,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:28:07,353 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:28:07,354 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:28:07,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:28:07,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:28:07,354 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:28:07,354 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:28:07,354 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:28:07,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:28:07,354 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:28:07,354 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:28:07,355 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:28:07,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:28:07,356 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:28:07,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:28:07,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:28:07,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:28:07,357 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:28:07,357 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:28:07,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:28:07,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:28:07,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:28:07,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:28:07,359 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:28:07,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:28:07,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:28:07,359 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:28:07,359 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:28:07,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:28:07,360 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_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 [2024-11-28 02:28:07,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:28:07,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:28:07,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:28:07,776 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:28:07,777 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:28:07,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2024-11-28 02:28:11,210 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/data/d772858c9/c16f8b94257f411fbbe3a118bf62ce4f/FLAGdbb62e542 [2024-11-28 02:28:11,620 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:28:11,621 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2024-11-28 02:28:11,638 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/data/d772858c9/c16f8b94257f411fbbe3a118bf62ce4f/FLAGdbb62e542 [2024-11-28 02:28:11,654 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/data/d772858c9/c16f8b94257f411fbbe3a118bf62ce4f [2024-11-28 02:28:11,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:28:11,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:28:11,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:28:11,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:28:11,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:28:11,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:28:11" (1/1) ... [2024-11-28 02:28:11,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@521bc7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:11, skipping insertion in model container [2024-11-28 02:28:11,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:28:11" (1/1) ... [2024-11-28 02:28:11,705 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:28:12,089 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:12,133 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:12,137 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:12,141 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:12,153 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:12,188 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:12,189 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:12,191 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:12,192 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:12,195 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:12,197 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:12,198 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:12,199 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:12,204 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:12,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:28:12,222 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-28 02:28:12,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3abb097e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:12, skipping insertion in model container [2024-11-28 02:28:12,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:28:12,223 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 02:28:12,225 INFO L158 Benchmark]: Toolchain (without parser) took 566.71ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 97.9MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:28:12,226 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:28:12,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 564.20ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 97.9MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:28:12,228 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 564.20ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 97.9MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 727]: 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_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:28:14,775 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:28:14,888 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-28 02:28:14,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:28:14,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:28:14,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:28:14,962 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:28:14,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:28:14,962 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:28:14,963 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:28:14,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:28:14,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:28:14,963 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:28:14,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:28:14,964 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:28:14,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:28:14,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:28:14,964 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:28:14,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:28:14,964 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:28:14,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:28:14,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:28:14,965 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 02:28:14,965 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 02:28:14,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:28:14,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:28:14,965 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:28:14,965 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:28:14,965 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:28:14,965 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:28:14,966 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:28:14,966 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:28:14,966 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:28:14,966 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:28:14,966 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:28:14,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:28:14,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:28:14,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:28:14,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:28:14,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:28:14,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:28:14,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:28:14,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:28:14,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:28:14,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:28:14,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:28:14,968 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:28:14,968 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:28:14,968 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:28:14,968 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:28:14,968 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:28:14,968 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:28:14,968 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_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 [2024-11-28 02:28:15,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:28:15,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:28:15,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:28:15,325 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:28:15,325 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:28:15,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2024-11-28 02:28:18,398 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/data/7fd05937a/1741cb986fce42e2bd2c50483838961e/FLAG62183001b [2024-11-28 02:28:18,873 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:28:18,874 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2024-11-28 02:28:18,908 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/data/7fd05937a/1741cb986fce42e2bd2c50483838961e/FLAG62183001b [2024-11-28 02:28:18,942 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/data/7fd05937a/1741cb986fce42e2bd2c50483838961e [2024-11-28 02:28:18,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:28:18,948 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:28:18,950 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:28:18,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:28:18,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:28:18,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:28:18" (1/1) ... [2024-11-28 02:28:18,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3177c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:18, skipping insertion in model container [2024-11-28 02:28:18,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:28:18" (1/1) ... [2024-11-28 02:28:19,029 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:28:19,441 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,479 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,483 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,488 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,498 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,540 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,541 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,544 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,545 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,548 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,550 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,551 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,552 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,562 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:28:19,589 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 02:28:19,602 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:28:19,641 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,665 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,668 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,671 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,676 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,724 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,724 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,727 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,727 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,730 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,736 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,737 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,737 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,745 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 02:28:19,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:28:19,758 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:28:19,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:28:19,919 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:28:19,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19 WrapperNode [2024-11-28 02:28:19,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:28:19,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:28:19,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:28:19,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:28:19,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19" (1/1) ... [2024-11-28 02:28:19,974 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19" (1/1) ... [2024-11-28 02:28:20,073 INFO L138 Inliner]: procedures = 179, calls = 272, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 983 [2024-11-28 02:28:20,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:28:20,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:28:20,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:28:20,078 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:28:20,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19" (1/1) ... [2024-11-28 02:28:20,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19" (1/1) ... [2024-11-28 02:28:20,108 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19" (1/1) ... [2024-11-28 02:28:20,213 INFO L175 MemorySlicer]: Split 253 memory accesses to 3 slices as follows [2, 34, 217]. 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]. [2024-11-28 02:28:20,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19" (1/1) ... [2024-11-28 02:28:20,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19" (1/1) ... [2024-11-28 02:28:20,272 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19" (1/1) ... [2024-11-28 02:28:20,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19" (1/1) ... [2024-11-28 02:28:20,283 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19" (1/1) ... [2024-11-28 02:28:20,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19" (1/1) ... [2024-11-28 02:28:20,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19" (1/1) ... [2024-11-28 02:28:20,312 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:28:20,313 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:28:20,313 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:28:20,313 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:28:20,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19" (1/1) ... [2024-11-28 02:28:20,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:28:20,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:28:20,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:28:20,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:28:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-28 02:28:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-28 02:28:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 02:28:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 02:28:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 02:28:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 02:28:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 02:28:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 02:28:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 02:28:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 02:28:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 02:28:20,393 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 02:28:20,393 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 02:28:20,393 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 02:28:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:28:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:28:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 02:28:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 02:28:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 02:28:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:28:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 02:28:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 02:28:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 02:28:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:28:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 02:28:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 02:28:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 02:28:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:28:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:28:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 02:28:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:28:20,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:28:20,606 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:28:20,608 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:28:29,465 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-28 02:28:29,465 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:28:29,483 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:28:29,484 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-11-28 02:28:29,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:28:29 BoogieIcfgContainer [2024-11-28 02:28:29,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:28:29,489 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:28:29,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:28:29,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:28:29,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:28:18" (1/3) ... [2024-11-28 02:28:29,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18738c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:28:29, skipping insertion in model container [2024-11-28 02:28:29,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:28:19" (2/3) ... [2024-11-28 02:28:29,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18738c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:28:29, skipping insertion in model container [2024-11-28 02:28:29,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:28:29" (3/3) ... [2024-11-28 02:28:29,497 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test7-1.i [2024-11-28 02:28:29,514 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:28:29,515 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test7-1.i that has 5 procedures, 211 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2024-11-28 02:28:29,573 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:28:29,593 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;@60147051, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:28:29,593 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:28:29,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 203 states, 193 states have (on average 1.6476683937823835) internal successors, (318), 196 states have internal predecessors, (318), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 02:28:29,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 02:28:29,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:29,609 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:28:29,609 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:28:29,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:29,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1768799362, now seen corresponding path program 1 times [2024-11-28 02:28:29,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:28:29,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125766231] [2024-11-28 02:28:29,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:29,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:29,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:28:29,633 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:28:29,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:28:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:29,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:28:29,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:28:29,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:28:29,859 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:28:29,860 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:28:29,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125766231] [2024-11-28 02:28:29,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125766231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:29,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:28:29,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:28:29,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653695248] [2024-11-28 02:28:29,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:29,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:28:29,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:28:29,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:28:29,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:28:29,900 INFO L87 Difference]: Start difference. First operand has 203 states, 193 states have (on average 1.6476683937823835) internal successors, (318), 196 states have internal predecessors, (318), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:28:29,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:29,948 INFO L93 Difference]: Finished difference Result 200 states and 255 transitions. [2024-11-28 02:28:29,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:28:29,950 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-28 02:28:29,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:29,961 INFO L225 Difference]: With dead ends: 200 [2024-11-28 02:28:29,961 INFO L226 Difference]: Without dead ends: 198 [2024-11-28 02:28:29,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:28:29,968 INFO L435 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:29,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:28:29,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-28 02:28:30,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-28 02:28:30,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 190 states have (on average 1.2894736842105263) internal successors, (245), 192 states have internal predecessors, (245), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:28:30,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 253 transitions. [2024-11-28 02:28:30,017 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 253 transitions. Word has length 10 [2024-11-28 02:28:30,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:30,018 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 253 transitions. [2024-11-28 02:28:30,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:28:30,018 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 253 transitions. [2024-11-28 02:28:30,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 02:28:30,019 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:30,019 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:28:30,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:28:30,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:30,220 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:28:30,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:30,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1101025932, now seen corresponding path program 1 times [2024-11-28 02:28:30,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:28:30,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1020372846] [2024-11-28 02:28:30,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:30,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:30,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:28:30,224 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:28:30,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:28:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:30,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:28:30,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:28:30,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:28:30,607 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:28:30,607 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:28:30,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020372846] [2024-11-28 02:28:30,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020372846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:30,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:28:30,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:28:30,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477784530] [2024-11-28 02:28:30,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:30,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:28:30,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:28:30,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:28:30,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:28:30,610 INFO L87 Difference]: Start difference. First operand 198 states and 253 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:28:35,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:28:36,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:36,831 INFO L93 Difference]: Finished difference Result 313 states and 403 transitions. [2024-11-28 02:28:36,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:28:36,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-28 02:28:36,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:36,837 INFO L225 Difference]: With dead ends: 313 [2024-11-28 02:28:36,837 INFO L226 Difference]: Without dead ends: 313 [2024-11-28 02:28:36,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:28:36,838 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 139 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:36,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 680 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2024-11-28 02:28:36,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-28 02:28:36,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 311. [2024-11-28 02:28:36,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 303 states have (on average 1.297029702970297) internal successors, (393), 305 states have internal predecessors, (393), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:28:36,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 401 transitions. [2024-11-28 02:28:36,859 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 401 transitions. Word has length 12 [2024-11-28 02:28:36,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:36,859 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 401 transitions. [2024-11-28 02:28:36,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:28:36,859 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 401 transitions. [2024-11-28 02:28:36,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 02:28:36,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:36,860 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:28:36,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:28:37,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:37,061 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:28:37,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:37,062 INFO L85 PathProgramCache]: Analyzing trace with hash -380122667, now seen corresponding path program 1 times [2024-11-28 02:28:37,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:28:37,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204467554] [2024-11-28 02:28:37,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:37,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:37,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:28:37,064 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:28:37,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:28:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:37,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:28:37,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:28:37,270 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:28:37,271 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:28:37,283 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 33 treesize of output 31 [2024-11-28 02:28:37,366 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:28:37,366 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 62 treesize of output 22 [2024-11-28 02:28:37,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:28:37,409 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:28:37,410 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:28:37,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204467554] [2024-11-28 02:28:37,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204467554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:37,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:28:37,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:28:37,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804230083] [2024-11-28 02:28:37,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:37,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:28:37,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:28:37,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:28:37,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:28:37,411 INFO L87 Difference]: Start difference. First operand 311 states and 401 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:28:38,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:38,268 INFO L93 Difference]: Finished difference Result 478 states and 619 transitions. [2024-11-28 02:28:38,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:28:38,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2024-11-28 02:28:38,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:38,272 INFO L225 Difference]: With dead ends: 478 [2024-11-28 02:28:38,272 INFO L226 Difference]: Without dead ends: 478 [2024-11-28 02:28:38,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:28:38,273 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 228 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:38,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 749 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:28:38,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-28 02:28:38,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 310. [2024-11-28 02:28:38,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 302 states have (on average 1.294701986754967) internal successors, (391), 304 states have internal predecessors, (391), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:28:38,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 399 transitions. [2024-11-28 02:28:38,313 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 399 transitions. Word has length 11 [2024-11-28 02:28:38,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:38,313 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 399 transitions. [2024-11-28 02:28:38,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:28:38,313 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 399 transitions. [2024-11-28 02:28:38,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 02:28:38,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:38,316 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:28:38,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:28:38,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:38,516 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:28:38,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:38,517 INFO L85 PathProgramCache]: Analyzing trace with hash 361297063, now seen corresponding path program 1 times [2024-11-28 02:28:38,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:28:38,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1933600711] [2024-11-28 02:28:38,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:38,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:38,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:28:38,522 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:28:38,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:28:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:39,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:28:39,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:28:39,046 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:28:39,046 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:28:39,046 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:28:39,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933600711] [2024-11-28 02:28:39,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933600711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:39,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:28:39,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:28:39,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485630647] [2024-11-28 02:28:39,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:39,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:28:39,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:28:39,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:28:39,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:28:39,053 INFO L87 Difference]: Start difference. First operand 310 states and 399 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:28:39,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:39,270 INFO L93 Difference]: Finished difference Result 350 states and 439 transitions. [2024-11-28 02:28:39,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:28:39,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-28 02:28:39,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:39,272 INFO L225 Difference]: With dead ends: 350 [2024-11-28 02:28:39,273 INFO L226 Difference]: Without dead ends: 350 [2024-11-28 02:28:39,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:28:39,274 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 7 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:39,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 453 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:28:39,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-28 02:28:39,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2024-11-28 02:28:39,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 342 states have (on average 1.260233918128655) internal successors, (431), 344 states have internal predecessors, (431), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:28:39,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 439 transitions. [2024-11-28 02:28:39,293 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 439 transitions. Word has length 84 [2024-11-28 02:28:39,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:39,294 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 439 transitions. [2024-11-28 02:28:39,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:28:39,294 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 439 transitions. [2024-11-28 02:28:39,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 02:28:39,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:39,297 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:28:39,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:28:39,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:39,498 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:28:39,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:39,498 INFO L85 PathProgramCache]: Analyzing trace with hash -514721943, now seen corresponding path program 1 times [2024-11-28 02:28:39,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:28:39,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [339131341] [2024-11-28 02:28:39,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:39,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:39,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:28:39,502 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:28:39,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:28:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:40,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:28:40,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:28:40,129 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:28:40,133 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:28:40,133 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:28:40,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339131341] [2024-11-28 02:28:40,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339131341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:40,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:28:40,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:28:40,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520251757] [2024-11-28 02:28:40,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:40,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:28:40,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:28:40,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:28:40,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:28:40,136 INFO L87 Difference]: Start difference. First operand 350 states and 439 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:28:40,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:40,348 INFO L93 Difference]: Finished difference Result 314 states and 381 transitions. [2024-11-28 02:28:40,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:28:40,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-28 02:28:40,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:40,351 INFO L225 Difference]: With dead ends: 314 [2024-11-28 02:28:40,351 INFO L226 Difference]: Without dead ends: 314 [2024-11-28 02:28:40,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:28:40,352 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 29 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:40,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 643 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:28:40,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-28 02:28:40,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2024-11-28 02:28:40,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 306 states have (on average 1.2189542483660132) internal successors, (373), 308 states have internal predecessors, (373), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:28:40,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 381 transitions. [2024-11-28 02:28:40,364 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 381 transitions. Word has length 84 [2024-11-28 02:28:40,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:40,365 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 381 transitions. [2024-11-28 02:28:40,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:28:40,365 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 381 transitions. [2024-11-28 02:28:40,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 02:28:40,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:40,367 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:28:40,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:28:40,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:40,568 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:28:40,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:40,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1852555427, now seen corresponding path program 1 times [2024-11-28 02:28:40,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:28:40,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1085045629] [2024-11-28 02:28:40,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:40,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:40,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:28:40,573 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:28:40,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:28:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:41,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:28:41,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:28:41,170 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 02:28:41,170 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:28:41,170 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:28:41,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085045629] [2024-11-28 02:28:41,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085045629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:41,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:28:41,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:28:41,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108581697] [2024-11-28 02:28:41,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:41,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:28:41,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:28:41,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:28:41,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:28:41,180 INFO L87 Difference]: Start difference. First operand 314 states and 381 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:28:41,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:41,243 INFO L93 Difference]: Finished difference Result 317 states and 385 transitions. [2024-11-28 02:28:41,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:28:41,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-28 02:28:41,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:41,248 INFO L225 Difference]: With dead ends: 317 [2024-11-28 02:28:41,248 INFO L226 Difference]: Without dead ends: 317 [2024-11-28 02:28:41,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:28:41,250 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 0 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:41,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 710 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:28:41,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-28 02:28:41,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2024-11-28 02:28:41,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 308 states have (on average 1.2207792207792207) internal successors, (376), 311 states have internal predecessors, (376), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:28:41,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 385 transitions. [2024-11-28 02:28:41,268 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 385 transitions. Word has length 84 [2024-11-28 02:28:41,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:41,269 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 385 transitions. [2024-11-28 02:28:41,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:28:41,273 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 385 transitions. [2024-11-28 02:28:41,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 02:28:41,274 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:41,274 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:28:41,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:28:41,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:41,475 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:28:41,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:41,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1817601825, now seen corresponding path program 1 times [2024-11-28 02:28:41,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:28:41,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [208813631] [2024-11-28 02:28:41,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:41,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:41,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:28:41,478 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:28:41,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:28:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:41,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:28:41,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:28:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:28:42,040 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:28:42,247 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:28:42,247 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:28:42,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208813631] [2024-11-28 02:28:42,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208813631] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:28:42,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:28:42,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 02:28:42,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381180126] [2024-11-28 02:28:42,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:28:42,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:28:42,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:28:42,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:28:42,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:28:42,250 INFO L87 Difference]: Start difference. First operand 317 states and 385 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:28:42,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:42,494 INFO L93 Difference]: Finished difference Result 328 states and 402 transitions. [2024-11-28 02:28:42,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:28:42,495 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 86 [2024-11-28 02:28:42,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:42,497 INFO L225 Difference]: With dead ends: 328 [2024-11-28 02:28:42,497 INFO L226 Difference]: Without dead ends: 328 [2024-11-28 02:28:42,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:28:42,498 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 5 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:42,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 944 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:28:42,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-28 02:28:42,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 326. [2024-11-28 02:28:42,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 316 states have (on average 1.2341772151898733) internal successors, (390), 319 states have internal predecessors, (390), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 02:28:42,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 400 transitions. [2024-11-28 02:28:42,509 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 400 transitions. Word has length 86 [2024-11-28 02:28:42,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:42,509 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 400 transitions. [2024-11-28 02:28:42,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:28:42,510 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 400 transitions. [2024-11-28 02:28:42,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 02:28:42,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:42,511 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:28:42,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:28:42,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:42,712 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:28:42,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:42,712 INFO L85 PathProgramCache]: Analyzing trace with hash -738429955, now seen corresponding path program 2 times [2024-11-28 02:28:42,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:28:42,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1013305863] [2024-11-28 02:28:42,713 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:28:42,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:42,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:28:42,716 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:28:42,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:28:43,096 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:28:43,096 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:28:43,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:28:43,103 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:28:43,118 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:28:43,119 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:28:43,121 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 33 treesize of output 31 [2024-11-28 02:28:43,194 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:28:43,195 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 62 treesize of output 22 [2024-11-28 02:28:43,231 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-28 02:28:43,231 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:28:43,231 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:28:43,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013305863] [2024-11-28 02:28:43,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013305863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:43,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:28:43,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:28:43,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970301314] [2024-11-28 02:28:43,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:43,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:28:43,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:28:43,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:28:43,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:28:43,234 INFO L87 Difference]: Start difference. First operand 326 states and 400 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:28:44,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:44,283 INFO L93 Difference]: Finished difference Result 490 states and 616 transitions. [2024-11-28 02:28:44,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:28:44,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 90 [2024-11-28 02:28:44,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:44,289 INFO L225 Difference]: With dead ends: 490 [2024-11-28 02:28:44,289 INFO L226 Difference]: Without dead ends: 490 [2024-11-28 02:28:44,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:28:44,291 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 212 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:44,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 716 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:28:44,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-28 02:28:44,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 328. [2024-11-28 02:28:44,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 318 states have (on average 1.2327044025157232) internal successors, (392), 321 states have internal predecessors, (392), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 02:28:44,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 402 transitions. [2024-11-28 02:28:44,306 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 402 transitions. Word has length 90 [2024-11-28 02:28:44,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:44,306 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 402 transitions. [2024-11-28 02:28:44,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:28:44,307 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 402 transitions. [2024-11-28 02:28:44,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 02:28:44,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:44,310 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:28:44,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 02:28:44,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:44,514 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:28:44,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:44,515 INFO L85 PathProgramCache]: Analyzing trace with hash 661877154, now seen corresponding path program 1 times [2024-11-28 02:28:44,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:28:44,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [890780403] [2024-11-28 02:28:44,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:44,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:44,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:28:44,518 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:28:44,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:28:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:45,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:28:45,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:28:45,183 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-28 02:28:45,184 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:28:45,184 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:28:45,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890780403] [2024-11-28 02:28:45,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890780403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:45,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:28:45,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:28:45,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765087728] [2024-11-28 02:28:45,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:45,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:28:45,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:28:45,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:28:45,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:28:45,188 INFO L87 Difference]: Start difference. First operand 328 states and 402 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:28:45,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:45,420 INFO L93 Difference]: Finished difference Result 368 states and 442 transitions. [2024-11-28 02:28:45,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:28:45,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 126 [2024-11-28 02:28:45,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:45,424 INFO L225 Difference]: With dead ends: 368 [2024-11-28 02:28:45,424 INFO L226 Difference]: Without dead ends: 368 [2024-11-28 02:28:45,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:28:45,426 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 8 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:45,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 427 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:28:45,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-28 02:28:45,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2024-11-28 02:28:45,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 358 states have (on average 1.2067039106145252) internal successors, (432), 361 states have internal predecessors, (432), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 02:28:45,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 442 transitions. [2024-11-28 02:28:45,443 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 442 transitions. Word has length 126 [2024-11-28 02:28:45,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:45,445 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 442 transitions. [2024-11-28 02:28:45,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:28:45,445 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 442 transitions. [2024-11-28 02:28:45,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 02:28:45,447 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:45,447 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:28:45,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 02:28:45,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:45,648 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:28:45,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:45,648 INFO L85 PathProgramCache]: Analyzing trace with hash 387117540, now seen corresponding path program 1 times [2024-11-28 02:28:45,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:28:45,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [419277943] [2024-11-28 02:28:45,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:45,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:45,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:28:45,651 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:28:45,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:28:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:46,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:28:46,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:28:46,880 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 02:28:46,880 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:28:46,880 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:28:46,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419277943] [2024-11-28 02:28:46,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419277943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:46,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:28:46,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:28:46,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581481574] [2024-11-28 02:28:46,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:46,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:28:46,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:28:46,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:28:46,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:28:46,883 INFO L87 Difference]: Start difference. First operand 368 states and 442 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:28:51,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:28:55,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:28:57,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 02:28:58,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:58,931 INFO L93 Difference]: Finished difference Result 478 states and 579 transitions. [2024-11-28 02:28:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:28:58,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 126 [2024-11-28 02:28:58,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:58,936 INFO L225 Difference]: With dead ends: 478 [2024-11-28 02:28:58,936 INFO L226 Difference]: Without dead ends: 478 [2024-11-28 02:28:58,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:28:58,937 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 441 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:58,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 414 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2024-11-28 02:28:58,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-28 02:28:58,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 475. [2024-11-28 02:28:58,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 465 states have (on average 1.217204301075269) internal successors, (566), 468 states have internal predecessors, (566), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 02:28:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 576 transitions. [2024-11-28 02:28:58,952 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 576 transitions. Word has length 126 [2024-11-28 02:28:58,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:58,952 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 576 transitions. [2024-11-28 02:28:58,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:28:58,952 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 576 transitions. [2024-11-28 02:28:58,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 02:28:58,954 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:58,954 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:28:58,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 02:28:59,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:59,158 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:28:59,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:59,159 INFO L85 PathProgramCache]: Analyzing trace with hash -259853294, now seen corresponding path program 1 times [2024-11-28 02:28:59,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:28:59,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1895413856] [2024-11-28 02:28:59,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:59,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:59,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:28:59,162 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:28:59,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 02:28:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:59,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:28:59,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:28:59,892 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-28 02:28:59,896 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:28:59,896 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:28:59,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895413856] [2024-11-28 02:28:59,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895413856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:59,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:28:59,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:28:59,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579267079] [2024-11-28 02:28:59,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:59,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:28:59,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:28:59,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:28:59,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:28:59,898 INFO L87 Difference]: Start difference. First operand 475 states and 576 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:29:00,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:29:00,073 INFO L93 Difference]: Finished difference Result 421 states and 489 transitions. [2024-11-28 02:29:00,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:29:00,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 134 [2024-11-28 02:29:00,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:29:00,076 INFO L225 Difference]: With dead ends: 421 [2024-11-28 02:29:00,076 INFO L226 Difference]: Without dead ends: 421 [2024-11-28 02:29:00,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:29:00,077 INFO L435 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 [2024-11-28 02:29:00,078 INFO L436 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] [2024-11-28 02:29:00,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-28 02:29:00,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2024-11-28 02:29:00,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 411 states have (on average 1.1654501216545012) internal successors, (479), 414 states have internal predecessors, (479), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 02:29:00,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 489 transitions. [2024-11-28 02:29:00,091 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 489 transitions. Word has length 134 [2024-11-28 02:29:00,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:29:00,092 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 489 transitions. [2024-11-28 02:29:00,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:29:00,092 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 489 transitions. [2024-11-28 02:29:00,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 02:29:00,094 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:29:00,094 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:29:00,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 02:29:00,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:29:00,299 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:29:00,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:29:00,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1764082884, now seen corresponding path program 1 times [2024-11-28 02:29:00,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:29:00,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472978957] [2024-11-28 02:29:00,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:29:00,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:29:00,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:29:00,303 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:29:00,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:29:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:29:00,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:29:00,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:29:01,118 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 02:29:01,119 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:29:01,453 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 02:29:01,455 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:29:01,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472978957] [2024-11-28 02:29:01,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472978957] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:29:01,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:29:01,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 02:29:01,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239124920] [2024-11-28 02:29:01,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:29:01,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:29:01,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:29:01,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:29:01,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:29:01,458 INFO L87 Difference]: Start difference. First operand 421 states and 489 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:29:02,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:29:02,002 INFO L93 Difference]: Finished difference Result 429 states and 499 transitions. [2024-11-28 02:29:02,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:29:02,003 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 134 [2024-11-28 02:29:02,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:29:02,005 INFO L225 Difference]: With dead ends: 429 [2024-11-28 02:29:02,005 INFO L226 Difference]: Without dead ends: 427 [2024-11-28 02:29:02,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:29:02,006 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 5 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:29:02,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 903 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:29:02,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-28 02:29:02,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 425. [2024-11-28 02:29:02,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 415 states have (on average 1.1686746987951808) internal successors, (485), 418 states have internal predecessors, (485), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 02:29:02,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 494 transitions. [2024-11-28 02:29:02,021 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 494 transitions. Word has length 134 [2024-11-28 02:29:02,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:29:02,022 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 494 transitions. [2024-11-28 02:29:02,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:29:02,022 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 494 transitions. [2024-11-28 02:29:02,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 02:29:02,026 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:29:02,026 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:29:02,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 02:29:02,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:29:02,227 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:29:02,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:29:02,227 INFO L85 PathProgramCache]: Analyzing trace with hash 140197764, now seen corresponding path program 2 times [2024-11-28 02:29:02,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:29:02,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1211020699] [2024-11-28 02:29:02,228 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:29:02,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:29:02,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:29:02,232 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:29:02,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 02:29:02,942 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:29:02,942 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:29:02,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:29:02,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:29:02,982 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:29:02,987 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 38 treesize of output 21 [2024-11-28 02:29:05,300 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:29:05,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 175 treesize of output 72 [2024-11-28 02:29:05,737 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:29:05,737 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 92 treesize of output 52 [2024-11-28 02:29:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-28 02:29:05,806 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:29:06,218 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:29:06,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211020699] [2024-11-28 02:29:06,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211020699] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:29:06,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1912716958] [2024-11-28 02:29:06,219 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:29:06,219 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 02:29:06,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 02:29:06,226 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 02:29:06,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-28 02:29:07,648 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:29:07,648 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:29:07,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:29:07,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:29:08,197 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 40 proven. 21 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 02:29:08,197 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:29:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 2 proven. 58 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 02:29:09,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1912716958] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:29:09,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:29:09,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 24 [2024-11-28 02:29:09,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485013305] [2024-11-28 02:29:09,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:29:09,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 02:29:09,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:29:09,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 02:29:09,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2024-11-28 02:29:09,115 INFO L87 Difference]: Start difference. First operand 425 states and 494 transitions. Second operand has 24 states, 24 states have (on average 8.833333333333334) internal successors, (212), 24 states have internal predecessors, (212), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 02:29:10,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:29:19,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:29:24,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:29:29,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:29:33,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:29:37,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:29:41,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:29:45,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:29:49,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:29:53,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:29:57,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:30:01,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:30:05,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:30:10,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:30:14,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:30:18,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:30:23,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:30:27,815 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 [0] [2024-11-28 02:30:27,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:30:27,911 INFO L93 Difference]: Finished difference Result 950 states and 1125 transitions. [2024-11-28 02:30:27,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-28 02:30:27,913 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 8.833333333333334) internal successors, (212), 24 states have internal predecessors, (212), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 138 [2024-11-28 02:30:27,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:30:27,918 INFO L225 Difference]: With dead ends: 950 [2024-11-28 02:30:27,919 INFO L226 Difference]: Without dead ends: 946 [2024-11-28 02:30:27,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 458 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=608, Invalid=2814, Unknown=0, NotChecked=0, Total=3422 [2024-11-28 02:30:27,922 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 497 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 37 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:30:27,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 3225 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 624 Invalid, 17 Unknown, 0 Unchecked, 75.3s Time] [2024-11-28 02:30:27,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2024-11-28 02:30:27,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 485. [2024-11-28 02:30:27,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 473 states have (on average 1.1818181818181819) internal successors, (559), 476 states have internal predecessors, (559), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 02:30:27,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 570 transitions. [2024-11-28 02:30:27,946 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 570 transitions. Word has length 138 [2024-11-28 02:30:27,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:30:27,947 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 570 transitions. [2024-11-28 02:30:27,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 8.833333333333334) internal successors, (212), 24 states have internal predecessors, (212), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 02:30:27,947 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 570 transitions. [2024-11-28 02:30:27,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-28 02:30:27,953 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:30:27,953 INFO L218 NwaCegarLoop]: trace histogram [21, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 02:30:27,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 02:30:28,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2024-11-28 02:30:28,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 02:30:28,356 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:30:28,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:30:28,357 INFO L85 PathProgramCache]: Analyzing trace with hash -386723812, now seen corresponding path program 1 times [2024-11-28 02:30:28,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:30:28,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [531056235] [2024-11-28 02:30:28,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:30:28,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:30:28,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:30:28,363 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:30:28,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 02:30:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:30:29,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:30:29,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:30:29,593 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 163 proven. 28 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-28 02:30:29,593 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:30:30,453 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 163 proven. 28 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-28 02:30:30,454 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:30:30,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531056235] [2024-11-28 02:30:30,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531056235] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:30:30,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:30:30,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2024-11-28 02:30:30,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126172548] [2024-11-28 02:30:30,455 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:30:30,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 02:30:30,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:30:30,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 02:30:30,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-28 02:30:30,457 INFO L87 Difference]: Start difference. First operand 485 states and 570 transitions. Second operand has 20 states, 20 states have (on average 9.05) internal successors, (181), 20 states have internal predecessors, (181), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:30:32,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:30:32,291 INFO L93 Difference]: Finished difference Result 515 states and 620 transitions. [2024-11-28 02:30:32,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 02:30:32,293 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 9.05) internal successors, (181), 20 states have internal predecessors, (181), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 206 [2024-11-28 02:30:32,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:30:32,295 INFO L225 Difference]: With dead ends: 515 [2024-11-28 02:30:32,295 INFO L226 Difference]: Without dead ends: 511 [2024-11-28 02:30:32,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=410, Invalid=780, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 02:30:32,296 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 10 mSDsluCounter, 2903 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3129 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:30:32,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3129 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:30:32,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-28 02:30:32,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 499. [2024-11-28 02:30:32,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 487 states have (on average 1.2012320328542094) internal successors, (585), 490 states have internal predecessors, (585), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 02:30:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 596 transitions. [2024-11-28 02:30:32,314 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 596 transitions. Word has length 206 [2024-11-28 02:30:32,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:30:32,316 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 596 transitions. [2024-11-28 02:30:32,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.05) internal successors, (181), 20 states have internal predecessors, (181), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 02:30:32,317 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 596 transitions. [2024-11-28 02:30:32,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-28 02:30:32,319 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:30:32,320 INFO L218 NwaCegarLoop]: trace histogram [30, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 02:30:32,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 02:30:32,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:30:32,520 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:30:32,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:30:32,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1397198089, now seen corresponding path program 2 times [2024-11-28 02:30:32,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:30:32,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2121909312] [2024-11-28 02:30:32,522 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:30:32,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:30:32,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:30:32,523 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:30:32,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 02:30:33,564 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:30:33,565 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:30:33,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:30:33,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:30:33,626 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:30:33,626 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 02:30:33,628 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 35 treesize of output 29 [2024-11-28 02:30:37,664 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:30:37,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 183 treesize of output 76 [2024-11-28 02:30:43,381 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:30:43,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 187 treesize of output 100 [2024-11-28 02:30:44,088 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:30:44,089 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 194 treesize of output 154 [2024-11-28 02:30:44,175 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2024-11-28 02:30:44,175 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:30:45,345 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:30:45,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121909312] [2024-11-28 02:30:45,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121909312] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:30:45,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1833915926] [2024-11-28 02:30:45,345 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:30:45,345 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 02:30:45,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 02:30:45,351 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 02:30:45,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-28 02:30:47,504 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:30:47,505 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:30:47,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 02:30:47,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:30:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 299 proven. 105 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-28 02:30:48,981 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:30:51,768 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 41 proven. 362 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-11-28 02:30:51,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1833915926] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:30:51,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:30:51,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 18, 18] total 41 [2024-11-28 02:30:51,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280516104] [2024-11-28 02:30:51,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:30:51,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-28 02:30:51,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:30:51,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-28 02:30:51,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=1621, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 02:30:51,772 INFO L87 Difference]: Start difference. First operand 499 states and 596 transitions. Second operand has 41 states, 41 states have (on average 7.926829268292683) internal successors, (325), 41 states have internal predecessors, (325), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 02:30:53,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:31:12,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:31:17,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:31:21,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:31:26,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:31:30,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:31:34,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:31:38,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:31:42,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:31:46,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:31:50,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:31:55,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:31:59,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:32:03,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:32:07,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:32:11,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:32:15,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:32:19,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:32:23,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:32:27,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:32:31,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:32:35,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:32:40,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:32:44,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:32:48,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:32:52,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:32:55,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:33:00,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:33:01,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:33:05,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:33:09,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:33:10,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:33:14,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 02:33:18,801 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 [0] [2024-11-28 02:33:18,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:33:18,935 INFO L93 Difference]: Finished difference Result 1322 states and 1579 transitions. [2024-11-28 02:33:18,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-28 02:33:18,936 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 7.926829268292683) internal successors, (325), 41 states have internal predecessors, (325), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 215 [2024-11-28 02:33:18,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:33:18,941 INFO L225 Difference]: With dead ends: 1322 [2024-11-28 02:33:18,941 INFO L226 Difference]: Without dead ends: 1318 [2024-11-28 02:33:18,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 839 GetRequests, 728 SyntacticMatches, 3 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2603 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=2096, Invalid=9894, Unknown=0, NotChecked=0, Total=11990 [2024-11-28 02:33:18,945 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 904 mSDsluCounter, 5797 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 50 mSolverCounterUnsat, 30 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 135.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 6038 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 30 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 136.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:33:18,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 6038 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1548 Invalid, 30 Unknown, 0 Unchecked, 136.0s Time] [2024-11-28 02:33:18,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2024-11-28 02:33:18,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 602. [2024-11-28 02:33:18,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 589 states have (on average 1.1850594227504245) internal successors, (698), 592 states have internal predecessors, (698), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 02:33:18,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 711 transitions. [2024-11-28 02:33:18,970 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 711 transitions. Word has length 215 [2024-11-28 02:33:18,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:33:18,970 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 711 transitions. [2024-11-28 02:33:18,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 7.926829268292683) internal successors, (325), 41 states have internal predecessors, (325), 3 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 02:33:18,971 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 711 transitions. [2024-11-28 02:33:18,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2024-11-28 02:33:18,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:33:18,975 INFO L218 NwaCegarLoop]: trace histogram [46, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2024-11-28 02:33:19,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2024-11-28 02:33:19,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 02:33:19,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:19,377 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-28 02:33:19,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:33:19,377 INFO L85 PathProgramCache]: Analyzing trace with hash 736171364, now seen corresponding path program 3 times [2024-11-28 02:33:19,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:33:19,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [723749073] [2024-11-28 02:33:19,379 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:33:19,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:33:19,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:33:19,384 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:33:19,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61d59b4-df75-495b-8f16-67efd89245e9/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process