./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/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_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:24:51,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:24:51,219 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 03:24:51,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:24:51,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:24:51,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:24:51,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:24:51,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:24:51,261 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:24:51,261 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:24:51,262 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:24:51,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:24:51,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:24:51,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:24:51,263 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:24:51,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:24:51,264 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:24:51,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:24:51,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:24:51,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:24:51,264 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:24:51,264 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:24:51,264 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 03:24:51,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:24:51,264 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:24:51,264 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:24:51,264 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:24:51,265 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:24:51,265 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:24:51,265 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:24:51,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:24:51,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:24:51,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:24:51,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:24:51,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:24:51,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:24:51,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:24:51,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:24:51,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:24:51,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:24:51,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:24:51,266 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:24:51,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:24:51,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:24:51,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:24:51,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:24:51,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:24:51,266 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_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 [2024-11-28 03:24:51,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:24:51,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:24:51,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:24:51,639 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:24:51,640 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:24:51,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2024-11-28 03:24:54,860 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/data/567819a0e/4eaeb7c13b93460fb3b0eae189df881b/FLAG7b9856c25 [2024-11-28 03:24:55,223 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:24:55,228 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2024-11-28 03:24:55,260 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/data/567819a0e/4eaeb7c13b93460fb3b0eae189df881b/FLAG7b9856c25 [2024-11-28 03:24:55,421 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/data/567819a0e/4eaeb7c13b93460fb3b0eae189df881b [2024-11-28 03:24:55,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:24:55,425 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:24:55,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:24:55,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:24:55,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:24:55,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:24:55" (1/1) ... [2024-11-28 03:24:55,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2802f98e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:55, skipping insertion in model container [2024-11-28 03:24:55,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:24:55" (1/1) ... [2024-11-28 03:24:55,475 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:24:55,949 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:55,985 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:55,989 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:55,994 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,001 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,046 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,046 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,050 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,050 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,054 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,056 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,057 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,058 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,065 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,066 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,069 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,071 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,072 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,073 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,078 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:24:56,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:24:56,108 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-28 03:24:56,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1941e3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:56, skipping insertion in model container [2024-11-28 03:24:56,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:24:56,116 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 03:24:56,118 INFO L158 Benchmark]: Toolchain (without parser) took 691.99ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 70.2MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:24:56,118 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:24:56,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 688.95ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 70.2MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:24:56,120 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 688.95ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 70.2MB in the end (delta: 20.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 747]: 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_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/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_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:24:58,841 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:24:58,987 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 03:24:58,998 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:24:58,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:24:59,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:24:59,028 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:24:59,028 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:24:59,028 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:24:59,028 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:24:59,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:24:59,028 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:24:59,029 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:24:59,029 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:24:59,029 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:24:59,029 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:24:59,029 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:24:59,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:24:59,030 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:24:59,030 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:24:59,030 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 03:24:59,030 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 03:24:59,030 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 03:24:59,030 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:24:59,030 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:24:59,030 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:24:59,030 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:24:59,030 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:24:59,031 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:24:59,031 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:24:59,031 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:24:59,031 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:24:59,031 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:24:59,031 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:24:59,031 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:24:59,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:24:59,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:24:59,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:24:59,032 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:24:59,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:24:59,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:24:59,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:24:59,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:24:59,032 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:24:59,032 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:24:59,032 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:24:59,033 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:24:59,033 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:24:59,033 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:24:59,033 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_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 [2024-11-28 03:24:59,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:24:59,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:24:59,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:24:59,403 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:24:59,404 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:24:59,409 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2024-11-28 03:25:02,603 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/data/9ca694141/f3d54fe633374f61a8199e6e54797d1a/FLAGa98686f1c [2024-11-28 03:25:03,069 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:25:03,070 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2024-11-28 03:25:03,096 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/data/9ca694141/f3d54fe633374f61a8199e6e54797d1a/FLAGa98686f1c [2024-11-28 03:25:03,116 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/data/9ca694141/f3d54fe633374f61a8199e6e54797d1a [2024-11-28 03:25:03,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:25:03,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:25:03,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:25:03,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:25:03,131 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:25:03,132 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:25:03" (1/1) ... [2024-11-28 03:25:03,132 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b31418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:03, skipping insertion in model container [2024-11-28 03:25:03,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:25:03" (1/1) ... [2024-11-28 03:25:03,192 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:25:03,755 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,802 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,807 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,813 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,821 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,879 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,879 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,882 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,883 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,887 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,888 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,890 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,890 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,896 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,897 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,900 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,901 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,903 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,903 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,909 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:03,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:25:03,930 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 03:25:03,946 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:25:03,998 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,044 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,046 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,053 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,061 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,097 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,101 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,104 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,108 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,111 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,117 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,118 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,118 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,125 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,127 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,130 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,131 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,131 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,132 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,136 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 03:25:04,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:25:04,144 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:25:04,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:25:04,336 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:25:04,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04 WrapperNode [2024-11-28 03:25:04,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:25:04,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:25:04,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:25:04,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:25:04,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04" (1/1) ... [2024-11-28 03:25:04,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04" (1/1) ... [2024-11-28 03:25:04,447 INFO L138 Inliner]: procedures = 180, calls = 330, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1196 [2024-11-28 03:25:04,448 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:25:04,448 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:25:04,448 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:25:04,448 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:25:04,459 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04" (1/1) ... [2024-11-28 03:25:04,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04" (1/1) ... [2024-11-28 03:25:04,475 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04" (1/1) ... [2024-11-28 03:25:04,608 INFO L175 MemorySlicer]: Split 303 memory accesses to 3 slices as follows [2, 267, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2024-11-28 03:25:04,608 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04" (1/1) ... [2024-11-28 03:25:04,608 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04" (1/1) ... [2024-11-28 03:25:04,683 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04" (1/1) ... [2024-11-28 03:25:04,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04" (1/1) ... [2024-11-28 03:25:04,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04" (1/1) ... [2024-11-28 03:25:04,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04" (1/1) ... [2024-11-28 03:25:04,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04" (1/1) ... [2024-11-28 03:25:04,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:25:04,749 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:25:04,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:25:04,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:25:04,751 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04" (1/1) ... [2024-11-28 03:25:04,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:25:04,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:04,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:25:04,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:25:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-28 03:25:04,821 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-28 03:25:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 03:25:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 03:25:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 03:25:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 03:25:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 03:25:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 03:25:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:25:04,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:25:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 03:25:04,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 03:25:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 03:25:04,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 03:25:04,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 03:25:04,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 03:25:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:25:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:25:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:25:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:25:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:25:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:25:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:25:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:25:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 03:25:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:25:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 03:25:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 03:25:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 03:25:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:25:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 03:25:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 03:25:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:25:04,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:25:05,083 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:25:05,086 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:25:05,110 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 03:25:05,155 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 03:25:05,186 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 03:25:11,541 INFO L? ?]: Removed 1312 outVars from TransFormulas that were not future-live. [2024-11-28 03:25:11,542 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:25:11,608 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:25:11,608 INFO L312 CfgBuilder]: Removed 41 assume(true) statements. [2024-11-28 03:25:11,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:25:11 BoogieIcfgContainer [2024-11-28 03:25:11,609 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:25:11,612 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:25:11,612 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:25:11,619 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:25:11,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:25:03" (1/3) ... [2024-11-28 03:25:11,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d00dfb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:25:11, skipping insertion in model container [2024-11-28 03:25:11,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:04" (2/3) ... [2024-11-28 03:25:11,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d00dfb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:25:11, skipping insertion in model container [2024-11-28 03:25:11,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:25:11" (3/3) ... [2024-11-28 03:25:11,623 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test3-2.i [2024-11-28 03:25:11,643 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:25:11,645 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test3-2.i that has 6 procedures, 1285 locations, 1 initial locations, 43 loop locations, and 632 error locations. [2024-11-28 03:25:11,747 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:25:11,769 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;@68c1c728, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:25:11,769 INFO L334 AbstractCegarLoop]: Starting to check reachability of 632 error locations. [2024-11-28 03:25:11,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 1275 states, 632 states have (on average 2.231012658227848) internal successors, (1410), 1268 states have internal predecessors, (1410), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 03:25:11,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 03:25:11,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:11,793 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 03:25:11,794 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:25:11,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:11,801 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2024-11-28 03:25:11,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:11,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1692842985] [2024-11-28 03:25:11,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:11,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:11,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:11,815 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:11,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:25:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:12,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:25:12,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:12,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 03:25:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:25:12,122 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:12,123 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:12,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692842985] [2024-11-28 03:25:12,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692842985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:12,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:12,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:25:12,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727521527] [2024-11-28 03:25:12,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:12,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:25:12,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:12,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:25:12,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:12,173 INFO L87 Difference]: Start difference. First operand has 1275 states, 632 states have (on average 2.231012658227848) internal successors, (1410), 1268 states have internal predecessors, (1410), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:15,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:15,364 INFO L93 Difference]: Finished difference Result 1449 states and 1535 transitions. [2024-11-28 03:25:15,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:25:15,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-28 03:25:15,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:15,390 INFO L225 Difference]: With dead ends: 1449 [2024-11-28 03:25:15,390 INFO L226 Difference]: Without dead ends: 1447 [2024-11-28 03:25:15,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:15,396 INFO L435 NwaCegarLoop]: 776 mSDtfsCounter, 1173 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:15,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 942 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:25:15,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-11-28 03:25:15,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1260. [2024-11-28 03:25:15,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 634 states have (on average 2.080441640378549) internal successors, (1319), 1253 states have internal predecessors, (1319), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:25:15,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1337 transitions. [2024-11-28 03:25:15,522 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1337 transitions. Word has length 3 [2024-11-28 03:25:15,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:15,523 INFO L471 AbstractCegarLoop]: Abstraction has 1260 states and 1337 transitions. [2024-11-28 03:25:15,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:15,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1337 transitions. [2024-11-28 03:25:15,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 03:25:15,524 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:15,524 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 03:25:15,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:25:15,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:15,725 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:25:15,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:15,726 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2024-11-28 03:25:15,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:15,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [560015284] [2024-11-28 03:25:15,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:15,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:15,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:15,728 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:15,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:25:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:15,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:25:15,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:15,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:25:15,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:25:15,992 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:15,992 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:15,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560015284] [2024-11-28 03:25:15,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560015284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:15,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:15,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:25:15,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730199865] [2024-11-28 03:25:15,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:15,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:25:15,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:15,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:25:15,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:15,997 INFO L87 Difference]: Start difference. First operand 1260 states and 1337 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:20,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:20,648 INFO L93 Difference]: Finished difference Result 1879 states and 2009 transitions. [2024-11-28 03:25:20,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:25:20,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-28 03:25:20,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:20,657 INFO L225 Difference]: With dead ends: 1879 [2024-11-28 03:25:20,657 INFO L226 Difference]: Without dead ends: 1879 [2024-11-28 03:25:20,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:20,658 INFO L435 NwaCegarLoop]: 1040 mSDtfsCounter, 660 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:20,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1749 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 03:25:20,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2024-11-28 03:25:20,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1468. [2024-11-28 03:25:20,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 843 states have (on average 2.0652431791221826) internal successors, (1741), 1461 states have internal predecessors, (1741), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:25:20,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 1759 transitions. [2024-11-28 03:25:20,710 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 1759 transitions. Word has length 3 [2024-11-28 03:25:20,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:20,710 INFO L471 AbstractCegarLoop]: Abstraction has 1468 states and 1759 transitions. [2024-11-28 03:25:20,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:20,711 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 1759 transitions. [2024-11-28 03:25:20,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 03:25:20,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:20,712 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:25:20,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:25:20,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:20,913 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:25:20,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:20,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1329215633, now seen corresponding path program 1 times [2024-11-28 03:25:20,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:20,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1263244717] [2024-11-28 03:25:20,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:20,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:20,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:20,922 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:20,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:25:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:21,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:25:21,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:21,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:25:21,301 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2024-11-28 03:25:21,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2024-11-28 03:25:21,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:25:21,419 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:21,419 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:21,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263244717] [2024-11-28 03:25:21,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263244717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:21,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:21,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:25:21,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593344393] [2024-11-28 03:25:21,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:21,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:25:21,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:21,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:25:21,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:25:21,421 INFO L87 Difference]: Start difference. First operand 1468 states and 1759 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:29,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:29,833 INFO L93 Difference]: Finished difference Result 2784 states and 2983 transitions. [2024-11-28 03:25:29,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:25:29,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-11-28 03:25:29,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:29,846 INFO L225 Difference]: With dead ends: 2784 [2024-11-28 03:25:29,847 INFO L226 Difference]: Without dead ends: 2784 [2024-11-28 03:25:29,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:25:29,848 INFO L435 NwaCegarLoop]: 1288 mSDtfsCounter, 1614 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1624 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:29,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1624 Valid, 2696 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-28 03:25:29,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2024-11-28 03:25:29,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 1617. [2024-11-28 03:25:29,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 992 states have (on average 2.0443548387096775) internal successors, (2028), 1610 states have internal predecessors, (2028), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:25:29,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2046 transitions. [2024-11-28 03:25:29,929 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2046 transitions. Word has length 8 [2024-11-28 03:25:29,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:29,930 INFO L471 AbstractCegarLoop]: Abstraction has 1617 states and 2046 transitions. [2024-11-28 03:25:29,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:29,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2046 transitions. [2024-11-28 03:25:29,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 03:25:29,931 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:29,931 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:25:29,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:25:30,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:30,136 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:25:30,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:30,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988334, now seen corresponding path program 1 times [2024-11-28 03:25:30,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:30,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1421377583] [2024-11-28 03:25:30,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:30,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:30,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:30,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:30,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:25:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:30,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:25:30,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:30,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 03:25:30,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:25:30,397 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:30,397 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:30,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421377583] [2024-11-28 03:25:30,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421377583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:30,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:30,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:25:30,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667778385] [2024-11-28 03:25:30,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:30,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:25:30,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:30,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:25:30,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:30,399 INFO L87 Difference]: Start difference. First operand 1617 states and 2046 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:33,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:33,390 INFO L93 Difference]: Finished difference Result 2152 states and 2807 transitions. [2024-11-28 03:25:33,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:25:33,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2024-11-28 03:25:33,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:33,399 INFO L225 Difference]: With dead ends: 2152 [2024-11-28 03:25:33,400 INFO L226 Difference]: Without dead ends: 2152 [2024-11-28 03:25:33,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:33,401 INFO L435 NwaCegarLoop]: 1193 mSDtfsCounter, 949 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:33,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [957 Valid, 1548 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 03:25:33,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2152 states. [2024-11-28 03:25:33,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2152 to 1568. [2024-11-28 03:25:33,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 992 states have (on average 1.9838709677419355) internal successors, (1968), 1561 states have internal predecessors, (1968), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:25:33,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 1986 transitions. [2024-11-28 03:25:33,449 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 1986 transitions. Word has length 9 [2024-11-28 03:25:33,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:33,449 INFO L471 AbstractCegarLoop]: Abstraction has 1568 states and 1986 transitions. [2024-11-28 03:25:33,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:33,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 1986 transitions. [2024-11-28 03:25:33,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 03:25:33,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:33,450 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:25:33,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:25:33,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:33,651 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:25:33,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:33,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988333, now seen corresponding path program 1 times [2024-11-28 03:25:33,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:33,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [628088129] [2024-11-28 03:25:33,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:33,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:33,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:33,654 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:33,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:25:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:33,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:25:33,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:33,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:25:33,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:25:33,898 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:33,898 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:33,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628088129] [2024-11-28 03:25:33,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628088129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:33,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:33,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:25:33,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672634088] [2024-11-28 03:25:33,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:33,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:25:33,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:33,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:25:33,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:33,899 INFO L87 Difference]: Start difference. First operand 1568 states and 1986 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:38,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:38,216 INFO L93 Difference]: Finished difference Result 2258 states and 2912 transitions. [2024-11-28 03:25:38,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:25:38,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2024-11-28 03:25:38,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:38,224 INFO L225 Difference]: With dead ends: 2258 [2024-11-28 03:25:38,224 INFO L226 Difference]: Without dead ends: 2258 [2024-11-28 03:25:38,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:38,225 INFO L435 NwaCegarLoop]: 1385 mSDtfsCounter, 703 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:38,225 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 1935 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 03:25:38,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2024-11-28 03:25:38,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 1595. [2024-11-28 03:25:38,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 1029 states have (on average 1.9640427599611272) internal successors, (2021), 1588 states have internal predecessors, (2021), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:25:38,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2039 transitions. [2024-11-28 03:25:38,269 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 2039 transitions. Word has length 9 [2024-11-28 03:25:38,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:38,269 INFO L471 AbstractCegarLoop]: Abstraction has 1595 states and 2039 transitions. [2024-11-28 03:25:38,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:38,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 2039 transitions. [2024-11-28 03:25:38,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 03:25:38,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:38,270 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:25:38,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:25:38,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:38,475 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr519REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:25:38,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:38,476 INFO L85 PathProgramCache]: Analyzing trace with hash 2051574547, now seen corresponding path program 1 times [2024-11-28 03:25:38,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:38,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1383563929] [2024-11-28 03:25:38,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:38,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:38,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:38,478 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:38,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:25:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:38,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:25:38,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:38,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:25:38,801 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:38,801 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:38,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383563929] [2024-11-28 03:25:38,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383563929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:38,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:38,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:25:38,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686932698] [2024-11-28 03:25:38,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:38,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:25:38,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:38,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:25:38,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:25:38,803 INFO L87 Difference]: Start difference. First operand 1595 states and 2039 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 03:25:40,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:40,179 INFO L93 Difference]: Finished difference Result 2210 states and 2788 transitions. [2024-11-28 03:25:40,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:25:40,181 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 03:25:40,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:40,194 INFO L225 Difference]: With dead ends: 2210 [2024-11-28 03:25:40,194 INFO L226 Difference]: Without dead ends: 2210 [2024-11-28 03:25:40,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:25:40,197 INFO L435 NwaCegarLoop]: 1406 mSDtfsCounter, 638 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 3849 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:40,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 3849 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:25:40,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2024-11-28 03:25:40,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 1849. [2024-11-28 03:25:40,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1849 states, 1283 states have (on average 1.9734996102883866) internal successors, (2532), 1842 states have internal predecessors, (2532), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:25:40,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 2550 transitions. [2024-11-28 03:25:40,249 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 2550 transitions. Word has length 11 [2024-11-28 03:25:40,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:40,250 INFO L471 AbstractCegarLoop]: Abstraction has 1849 states and 2550 transitions. [2024-11-28 03:25:40,250 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 03:25:40,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 2550 transitions. [2024-11-28 03:25:40,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 03:25:40,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:40,251 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:25:40,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:25:40,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:40,455 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr330REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:25:40,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:40,457 INFO L85 PathProgramCache]: Analyzing trace with hash -549267329, now seen corresponding path program 1 times [2024-11-28 03:25:40,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:40,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2034443887] [2024-11-28 03:25:40,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:40,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:40,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:40,460 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:40,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:25:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:40,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:25:40,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:40,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:25:40,728 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:40,728 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:40,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034443887] [2024-11-28 03:25:40,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034443887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:40,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:40,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:25:40,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028347433] [2024-11-28 03:25:40,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:40,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:25:40,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:40,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:25:40,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:25:40,730 INFO L87 Difference]: Start difference. First operand 1849 states and 2550 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:44,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:44,406 INFO L93 Difference]: Finished difference Result 2034 states and 2678 transitions. [2024-11-28 03:25:44,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:25:44,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-11-28 03:25:44,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:44,411 INFO L225 Difference]: With dead ends: 2034 [2024-11-28 03:25:44,411 INFO L226 Difference]: Without dead ends: 2034 [2024-11-28 03:25:44,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:25:44,412 INFO L435 NwaCegarLoop]: 732 mSDtfsCounter, 1169 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:44,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 1508 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-28 03:25:44,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2034 states. [2024-11-28 03:25:44,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2034 to 1826. [2024-11-28 03:25:44,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1283 states have (on average 1.901792673421668) internal successors, (2440), 1819 states have internal predecessors, (2440), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:25:44,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2458 transitions. [2024-11-28 03:25:44,462 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2458 transitions. Word has length 13 [2024-11-28 03:25:44,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:44,462 INFO L471 AbstractCegarLoop]: Abstraction has 1826 states and 2458 transitions. [2024-11-28 03:25:44,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:44,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2458 transitions. [2024-11-28 03:25:44,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 03:25:44,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:44,464 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:25:44,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:25:44,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:44,665 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr331REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:25:44,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:44,665 INFO L85 PathProgramCache]: Analyzing trace with hash -549267328, now seen corresponding path program 1 times [2024-11-28 03:25:44,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:44,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1219102812] [2024-11-28 03:25:44,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:44,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:44,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:44,668 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:44,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:25:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:44,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:25:44,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:44,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:25:45,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:25:45,021 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:45,021 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:45,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219102812] [2024-11-28 03:25:45,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219102812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:45,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:45,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:25:45,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171359910] [2024-11-28 03:25:45,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:45,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:25:45,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:45,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:25:45,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:25:45,022 INFO L87 Difference]: Start difference. First operand 1826 states and 2458 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:50,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:50,439 INFO L93 Difference]: Finished difference Result 2172 states and 2635 transitions. [2024-11-28 03:25:50,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:25:50,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-11-28 03:25:50,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:50,444 INFO L225 Difference]: With dead ends: 2172 [2024-11-28 03:25:50,444 INFO L226 Difference]: Without dead ends: 2172 [2024-11-28 03:25:50,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:25:50,445 INFO L435 NwaCegarLoop]: 987 mSDtfsCounter, 637 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:50,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 2255 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-28 03:25:50,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2024-11-28 03:25:50,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 1775. [2024-11-28 03:25:50,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1775 states, 1232 states have (on average 1.9017857142857142) internal successors, (2343), 1768 states have internal predecessors, (2343), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:25:50,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2361 transitions. [2024-11-28 03:25:50,491 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2361 transitions. Word has length 13 [2024-11-28 03:25:50,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:50,492 INFO L471 AbstractCegarLoop]: Abstraction has 1775 states and 2361 transitions. [2024-11-28 03:25:50,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:50,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2361 transitions. [2024-11-28 03:25:50,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 03:25:50,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:50,493 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:25:50,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:25:50,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:50,696 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr355REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:25:50,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:50,696 INFO L85 PathProgramCache]: Analyzing trace with hash 435220567, now seen corresponding path program 1 times [2024-11-28 03:25:50,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:50,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557356804] [2024-11-28 03:25:50,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:50,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:50,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:50,700 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:50,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:25:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:50,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:25:50,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:50,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:25:50,945 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:50,945 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:50,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557356804] [2024-11-28 03:25:50,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557356804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:50,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:50,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:25:50,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686402427] [2024-11-28 03:25:50,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:50,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:25:50,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:50,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:25:50,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:25:50,947 INFO L87 Difference]: Start difference. First operand 1775 states and 2361 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:51,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:51,058 INFO L93 Difference]: Finished difference Result 1703 states and 2238 transitions. [2024-11-28 03:25:51,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:25:51,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2024-11-28 03:25:51,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:51,065 INFO L225 Difference]: With dead ends: 1703 [2024-11-28 03:25:51,066 INFO L226 Difference]: Without dead ends: 1703 [2024-11-28 03:25:51,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:25:51,066 INFO L435 NwaCegarLoop]: 1164 mSDtfsCounter, 45 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3469 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:51,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3469 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:25:51,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2024-11-28 03:25:51,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1703. [2024-11-28 03:25:51,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1179 states have (on average 1.8829516539440203) internal successors, (2220), 1696 states have internal predecessors, (2220), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:25:51,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2238 transitions. [2024-11-28 03:25:51,100 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2238 transitions. Word has length 15 [2024-11-28 03:25:51,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:51,101 INFO L471 AbstractCegarLoop]: Abstraction has 1703 states and 2238 transitions. [2024-11-28 03:25:51,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:51,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2238 transitions. [2024-11-28 03:25:51,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 03:25:51,102 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:51,102 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:25:51,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 03:25:51,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:51,306 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr630ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:25:51,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:51,307 INFO L85 PathProgramCache]: Analyzing trace with hash 572709213, now seen corresponding path program 1 times [2024-11-28 03:25:51,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:51,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599019687] [2024-11-28 03:25:51,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:51,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:51,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:51,310 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:51,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:25:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:51,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:25:51,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:51,536 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:25:51,536 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:25:51,537 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:25:51,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-28 03:25:51,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:25:51,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-28 03:25:51,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:25:51,644 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:51,645 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:51,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599019687] [2024-11-28 03:25:51,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599019687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:51,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:51,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:25:51,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433641127] [2024-11-28 03:25:51,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:51,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:25:51,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:51,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:25:51,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:25:51,647 INFO L87 Difference]: Start difference. First operand 1703 states and 2238 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:52,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:52,091 INFO L93 Difference]: Finished difference Result 2444 states and 2835 transitions. [2024-11-28 03:25:52,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:25:52,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-28 03:25:52,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:52,099 INFO L225 Difference]: With dead ends: 2444 [2024-11-28 03:25:52,100 INFO L226 Difference]: Without dead ends: 2444 [2024-11-28 03:25:52,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:25:52,101 INFO L435 NwaCegarLoop]: 1380 mSDtfsCounter, 1094 mSDsluCounter, 2522 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 3902 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:52,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 3902 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:25:52,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2024-11-28 03:25:52,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 1392. [2024-11-28 03:25:52,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 868 states have (on average 1.8974654377880185) internal successors, (1647), 1385 states have internal predecessors, (1647), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:25:52,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1665 transitions. [2024-11-28 03:25:52,130 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1665 transitions. Word has length 16 [2024-11-28 03:25:52,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:52,130 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 1665 transitions. [2024-11-28 03:25:52,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:52,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1665 transitions. [2024-11-28 03:25:52,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 03:25:52,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:52,131 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:25:52,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 03:25:52,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:52,332 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:25:52,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:52,333 INFO L85 PathProgramCache]: Analyzing trace with hash 495195041, now seen corresponding path program 1 times [2024-11-28 03:25:52,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:52,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [253074383] [2024-11-28 03:25:52,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:52,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:52,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:52,336 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:52,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:25:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:52,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:25:52,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:52,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 03:25:52,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:25:52,646 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:52,646 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:52,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253074383] [2024-11-28 03:25:52,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253074383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:52,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:52,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:25:52,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146731635] [2024-11-28 03:25:52,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:52,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:25:52,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:52,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:25:52,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:25:52,648 INFO L87 Difference]: Start difference. First operand 1392 states and 1665 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:56,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:56,508 INFO L93 Difference]: Finished difference Result 1767 states and 2134 transitions. [2024-11-28 03:25:56,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:25:56,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-11-28 03:25:56,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:56,514 INFO L225 Difference]: With dead ends: 1767 [2024-11-28 03:25:56,514 INFO L226 Difference]: Without dead ends: 1767 [2024-11-28 03:25:56,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:25:56,515 INFO L435 NwaCegarLoop]: 727 mSDtfsCounter, 914 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:56,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1576 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-28 03:25:56,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-28 03:25:56,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1369. [2024-11-28 03:25:56,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 868 states have (on average 1.8444700460829493) internal successors, (1601), 1362 states have internal predecessors, (1601), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:25:56,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1619 transitions. [2024-11-28 03:25:56,537 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1619 transitions. Word has length 19 [2024-11-28 03:25:56,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:56,537 INFO L471 AbstractCegarLoop]: Abstraction has 1369 states and 1619 transitions. [2024-11-28 03:25:56,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:25:56,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1619 transitions. [2024-11-28 03:25:56,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 03:25:56,539 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:56,540 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:25:56,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 03:25:56,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:56,744 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:25:56,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:56,744 INFO L85 PathProgramCache]: Analyzing trace with hash 495195042, now seen corresponding path program 1 times [2024-11-28 03:25:56,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:56,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1592512094] [2024-11-28 03:25:56,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:56,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:56,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:56,747 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:56,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:25:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:56,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:25:56,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:57,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:25:57,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:25:57,144 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:57,144 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:57,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592512094] [2024-11-28 03:25:57,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592512094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:57,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:57,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:25:57,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734024443] [2024-11-28 03:25:57,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:57,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:25:57,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:57,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:25:57,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:25:57,146 INFO L87 Difference]: Start difference. First operand 1369 states and 1619 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:02,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:02,558 INFO L93 Difference]: Finished difference Result 2017 states and 2388 transitions. [2024-11-28 03:26:02,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:26:02,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-11-28 03:26:02,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:02,565 INFO L225 Difference]: With dead ends: 2017 [2024-11-28 03:26:02,565 INFO L226 Difference]: Without dead ends: 2017 [2024-11-28 03:26:02,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:02,566 INFO L435 NwaCegarLoop]: 1324 mSDtfsCounter, 742 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 1533 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 2676 SdHoareTripleChecker+Invalid, 1555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:02,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 2676 Invalid, 1555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1533 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-28 03:26:02,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2024-11-28 03:26:02,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 1485. [2024-11-28 03:26:02,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 984 states have (on average 1.7693089430894309) internal successors, (1741), 1478 states have internal predecessors, (1741), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:26:02,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1759 transitions. [2024-11-28 03:26:02,587 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1759 transitions. Word has length 19 [2024-11-28 03:26:02,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:02,587 INFO L471 AbstractCegarLoop]: Abstraction has 1485 states and 1759 transitions. [2024-11-28 03:26:02,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:02,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1759 transitions. [2024-11-28 03:26:02,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 03:26:02,588 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:02,589 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 03:26:02,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 03:26:02,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:02,793 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:26:02,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:02,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1991006148, now seen corresponding path program 1 times [2024-11-28 03:26:02,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:02,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1853956757] [2024-11-28 03:26:02,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:02,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:02,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:02,797 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:02,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 03:26:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:03,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:26:03,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:03,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:26:03,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:26:03,500 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:26:04,304 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:26:04,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853956757] [2024-11-28 03:26:04,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853956757] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:26:04,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:26:04,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-28 03:26:04,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926850211] [2024-11-28 03:26:04,305 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:04,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:26:04,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:26:04,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:26:04,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:26:04,306 INFO L87 Difference]: Start difference. First operand 1485 states and 1759 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:18,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:18,144 INFO L93 Difference]: Finished difference Result 2379 states and 2884 transitions. [2024-11-28 03:26:18,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:26:18,145 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 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 38 [2024-11-28 03:26:18,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:18,153 INFO L225 Difference]: With dead ends: 2379 [2024-11-28 03:26:18,154 INFO L226 Difference]: Without dead ends: 2379 [2024-11-28 03:26:18,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:26:18,154 INFO L435 NwaCegarLoop]: 1352 mSDtfsCounter, 2361 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 2413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:18,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 3648 Invalid, 2413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2024-11-28 03:26:18,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2024-11-28 03:26:18,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 1651. [2024-11-28 03:26:18,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1150 states have (on average 1.7173913043478262) internal successors, (1975), 1644 states have internal predecessors, (1975), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:26:18,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 1993 transitions. [2024-11-28 03:26:18,184 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 1993 transitions. Word has length 38 [2024-11-28 03:26:18,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:18,184 INFO L471 AbstractCegarLoop]: Abstraction has 1651 states and 1993 transitions. [2024-11-28 03:26:18,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:18,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 1993 transitions. [2024-11-28 03:26:18,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 03:26:18,186 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:18,186 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:18,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:18,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:18,387 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:26:18,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:18,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1728836185, now seen corresponding path program 1 times [2024-11-28 03:26:18,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:18,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151804282] [2024-11-28 03:26:18,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:18,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:18,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:18,391 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:18,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 03:26:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:18,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:26:18,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:18,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:26:18,800 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:18,800 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:26:18,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151804282] [2024-11-28 03:26:18,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151804282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:18,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:18,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:26:18,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584528454] [2024-11-28 03:26:18,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:18,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:26:18,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:26:18,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:26:18,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:18,803 INFO L87 Difference]: Start difference. First operand 1651 states and 1993 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:18,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:18,965 INFO L93 Difference]: Finished difference Result 1336 states and 1553 transitions. [2024-11-28 03:26:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:26:18,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2024-11-28 03:26:18,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:18,971 INFO L225 Difference]: With dead ends: 1336 [2024-11-28 03:26:18,971 INFO L226 Difference]: Without dead ends: 1336 [2024-11-28 03:26:18,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:18,975 INFO L435 NwaCegarLoop]: 1101 mSDtfsCounter, 56 mSDsluCounter, 2129 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3230 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:18,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3230 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:26:18,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2024-11-28 03:26:18,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1334. [2024-11-28 03:26:19,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 856 states have (on average 1.7908878504672898) internal successors, (1533), 1327 states have internal predecessors, (1533), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:26:19,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 1551 transitions. [2024-11-28 03:26:19,003 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 1551 transitions. Word has length 54 [2024-11-28 03:26:19,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:19,003 INFO L471 AbstractCegarLoop]: Abstraction has 1334 states and 1551 transitions. [2024-11-28 03:26:19,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:19,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 1551 transitions. [2024-11-28 03:26:19,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 03:26:19,006 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:19,007 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:19,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:19,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:19,207 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:26:19,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:19,208 INFO L85 PathProgramCache]: Analyzing trace with hash 199933403, now seen corresponding path program 1 times [2024-11-28 03:26:19,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:19,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1047465168] [2024-11-28 03:26:19,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:19,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:19,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:19,211 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:19,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 03:26:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:19,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:26:19,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:19,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:26:20,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:26:20,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-28 03:26:20,435 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:26:20,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:26:20,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:26:20,443 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:20,444 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:26:20,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047465168] [2024-11-28 03:26:20,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047465168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:20,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:20,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:26:20,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478552845] [2024-11-28 03:26:20,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:20,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:26:20,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:26:20,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:26:20,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:20,445 INFO L87 Difference]: Start difference. First operand 1334 states and 1551 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:25,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:25,485 INFO L93 Difference]: Finished difference Result 1686 states and 2020 transitions. [2024-11-28 03:26:25,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:26:25,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 62 [2024-11-28 03:26:25,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:25,490 INFO L225 Difference]: With dead ends: 1686 [2024-11-28 03:26:25,490 INFO L226 Difference]: Without dead ends: 1686 [2024-11-28 03:26:25,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:26:25,491 INFO L435 NwaCegarLoop]: 553 mSDtfsCounter, 1841 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:25,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1844 Valid, 1201 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-28 03:26:25,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2024-11-28 03:26:25,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1259. [2024-11-28 03:26:25,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 819 states have (on average 1.735042735042735) internal successors, (1421), 1252 states have internal predecessors, (1421), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:26:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1439 transitions. [2024-11-28 03:26:25,508 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1439 transitions. Word has length 62 [2024-11-28 03:26:25,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:25,508 INFO L471 AbstractCegarLoop]: Abstraction has 1259 states and 1439 transitions. [2024-11-28 03:26:25,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:25,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1439 transitions. [2024-11-28 03:26:25,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 03:26:25,509 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:25,509 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:25,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 03:26:25,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:25,710 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:26:25,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:25,710 INFO L85 PathProgramCache]: Analyzing trace with hash -543313183, now seen corresponding path program 1 times [2024-11-28 03:26:25,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:25,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1184672278] [2024-11-28 03:26:25,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:25,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:25,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:25,713 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:25,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 03:26:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:26,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:26:26,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:26,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 03:26:26,080 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 19 treesize of output 1 [2024-11-28 03:26:26,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 03:26:26,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:26:26,152 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:26,152 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:26:26,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184672278] [2024-11-28 03:26:26,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184672278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:26,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:26,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:26:26,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964928948] [2024-11-28 03:26:26,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:26,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:26:26,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:26:26,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:26:26,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:26,154 INFO L87 Difference]: Start difference. First operand 1259 states and 1439 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:29,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:29,926 INFO L93 Difference]: Finished difference Result 1258 states and 1438 transitions. [2024-11-28 03:26:29,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:26:29,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2024-11-28 03:26:29,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:29,930 INFO L225 Difference]: With dead ends: 1258 [2024-11-28 03:26:29,930 INFO L226 Difference]: Without dead ends: 1258 [2024-11-28 03:26:29,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:26:29,933 INFO L435 NwaCegarLoop]: 1074 mSDtfsCounter, 2 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:29,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2815 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1488 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 03:26:29,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2024-11-28 03:26:29,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1258. [2024-11-28 03:26:29,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 819 states have (on average 1.7338217338217339) internal successors, (1420), 1251 states have internal predecessors, (1420), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:26:29,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 1438 transitions. [2024-11-28 03:26:29,948 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 1438 transitions. Word has length 67 [2024-11-28 03:26:29,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:29,948 INFO L471 AbstractCegarLoop]: Abstraction has 1258 states and 1438 transitions. [2024-11-28 03:26:29,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:29,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 1438 transitions. [2024-11-28 03:26:29,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 03:26:29,949 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:29,950 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:29,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 03:26:30,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:30,150 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:26:30,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:30,151 INFO L85 PathProgramCache]: Analyzing trace with hash -543313182, now seen corresponding path program 1 times [2024-11-28 03:26:30,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:30,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [542566312] [2024-11-28 03:26:30,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:30,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:30,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:30,153 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:30,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 03:26:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:30,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:26:30,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:30,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:26:30,577 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 13 treesize of output 9 [2024-11-28 03:26:30,595 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 19 treesize of output 1 [2024-11-28 03:26:30,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 03:26:30,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:26:30,709 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:30,709 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:26:30,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542566312] [2024-11-28 03:26:30,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542566312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:30,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:30,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:26:30,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91005694] [2024-11-28 03:26:30,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:30,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:26:30,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:26:30,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:26:30,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:30,713 INFO L87 Difference]: Start difference. First operand 1258 states and 1438 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:35,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:35,536 INFO L93 Difference]: Finished difference Result 1257 states and 1437 transitions. [2024-11-28 03:26:35,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:26:35,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2024-11-28 03:26:35,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:35,540 INFO L225 Difference]: With dead ends: 1257 [2024-11-28 03:26:35,540 INFO L226 Difference]: Without dead ends: 1257 [2024-11-28 03:26:35,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:26:35,540 INFO L435 NwaCegarLoop]: 1074 mSDtfsCounter, 1 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2820 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:35,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2820 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-28 03:26:35,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2024-11-28 03:26:35,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2024-11-28 03:26:35,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 818 states have (on average 1.734718826405868) internal successors, (1419), 1250 states have internal predecessors, (1419), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:26:35,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1437 transitions. [2024-11-28 03:26:35,556 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1437 transitions. Word has length 67 [2024-11-28 03:26:35,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:35,556 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1437 transitions. [2024-11-28 03:26:35,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:26:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1437 transitions. [2024-11-28 03:26:35,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:26:35,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:35,558 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:35,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 03:26:35,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:35,758 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:26:35,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:35,759 INFO L85 PathProgramCache]: Analyzing trace with hash 730434920, now seen corresponding path program 1 times [2024-11-28 03:26:35,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:35,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [733245086] [2024-11-28 03:26:35,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:35,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:35,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:35,761 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:35,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 03:26:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:36,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:26:36,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:36,172 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 19 treesize of output 1 [2024-11-28 03:26:36,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 03:26:36,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:26:36,296 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:36,297 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:26:36,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733245086] [2024-11-28 03:26:36,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733245086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:36,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:36,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:26:36,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812518523] [2024-11-28 03:26:36,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:36,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:26:36,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:26:36,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:26:36,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:26:36,299 INFO L87 Difference]: Start difference. First operand 1257 states and 1437 transitions. Second operand has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:26:40,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:40,935 INFO L93 Difference]: Finished difference Result 1269 states and 1452 transitions. [2024-11-28 03:26:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:26:40,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-28 03:26:40,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:40,942 INFO L225 Difference]: With dead ends: 1269 [2024-11-28 03:26:40,942 INFO L226 Difference]: Without dead ends: 1269 [2024-11-28 03:26:40,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:26:40,943 INFO L435 NwaCegarLoop]: 1059 mSDtfsCounter, 13 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3882 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:40,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3882 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 03:26:40,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2024-11-28 03:26:40,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1263. [2024-11-28 03:26:40,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 823 states have (on average 1.732685297691373) internal successors, (1426), 1255 states have internal predecessors, (1426), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 5 states have call predecessors, (11), 8 states have call successors, (11) [2024-11-28 03:26:40,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1447 transitions. [2024-11-28 03:26:40,987 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1447 transitions. Word has length 75 [2024-11-28 03:26:40,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:40,988 INFO L471 AbstractCegarLoop]: Abstraction has 1263 states and 1447 transitions. [2024-11-28 03:26:40,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:26:40,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1447 transitions. [2024-11-28 03:26:40,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 03:26:40,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:40,990 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:41,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 03:26:41,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:41,191 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:26:41,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:41,192 INFO L85 PathProgramCache]: Analyzing trace with hash 730434921, now seen corresponding path program 1 times [2024-11-28 03:26:41,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:41,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [233249511] [2024-11-28 03:26:41,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:41,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:41,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:41,195 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:41,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 03:26:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:41,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:26:41,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:41,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:26:41,634 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:41,634 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:26:41,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233249511] [2024-11-28 03:26:41,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233249511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:41,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:41,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:26:41,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000013419] [2024-11-28 03:26:41,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:41,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:26:41,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:26:41,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:26:41,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:41,637 INFO L87 Difference]: Start difference. First operand 1263 states and 1447 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:26:41,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:41,705 INFO L93 Difference]: Finished difference Result 1260 states and 1441 transitions. [2024-11-28 03:26:41,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:26:41,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-28 03:26:41,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:41,711 INFO L225 Difference]: With dead ends: 1260 [2024-11-28 03:26:41,712 INFO L226 Difference]: Without dead ends: 1260 [2024-11-28 03:26:41,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:41,713 INFO L435 NwaCegarLoop]: 1074 mSDtfsCounter, 0 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3217 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:41,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3217 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:26:41,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2024-11-28 03:26:41,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1260. [2024-11-28 03:26:41,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 820 states have (on average 1.7341463414634146) internal successors, (1422), 1253 states have internal predecessors, (1422), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:26:41,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1441 transitions. [2024-11-28 03:26:41,738 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1441 transitions. Word has length 75 [2024-11-28 03:26:41,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:41,739 INFO L471 AbstractCegarLoop]: Abstraction has 1260 states and 1441 transitions. [2024-11-28 03:26:41,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:26:41,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1441 transitions. [2024-11-28 03:26:41,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 03:26:41,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:41,740 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:41,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-28 03:26:41,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:41,942 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:26:41,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:41,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1829527680, now seen corresponding path program 1 times [2024-11-28 03:26:41,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:41,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1206601536] [2024-11-28 03:26:41,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:41,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:41,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:41,946 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:41,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 03:26:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:42,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:26:42,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:42,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:26:42,365 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:42,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:26:42,474 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:26:42,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206601536] [2024-11-28 03:26:42,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206601536] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:26:42,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:26:42,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 03:26:42,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374323602] [2024-11-28 03:26:42,476 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:42,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:26:42,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:26:42,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:26:42,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:26:42,477 INFO L87 Difference]: Start difference. First operand 1260 states and 1441 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:26:42,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:42,697 INFO L93 Difference]: Finished difference Result 1272 states and 1458 transitions. [2024-11-28 03:26:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:26:42,698 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2024-11-28 03:26:42,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:42,703 INFO L225 Difference]: With dead ends: 1272 [2024-11-28 03:26:42,703 INFO L226 Difference]: Without dead ends: 1272 [2024-11-28 03:26:42,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:26:42,704 INFO L435 NwaCegarLoop]: 1074 mSDtfsCounter, 5 mSDsluCounter, 3213 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4287 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:42,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4287 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:26:42,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2024-11-28 03:26:42,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1270. [2024-11-28 03:26:42,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 829 states have (on average 1.7334137515078407) internal successors, (1437), 1262 states have internal predecessors, (1437), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:26:42,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1456 transitions. [2024-11-28 03:26:42,729 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1456 transitions. Word has length 76 [2024-11-28 03:26:42,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:42,729 INFO L471 AbstractCegarLoop]: Abstraction has 1270 states and 1456 transitions. [2024-11-28 03:26:42,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:26:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1456 transitions. [2024-11-28 03:26:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 03:26:42,730 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:42,730 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:42,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:42,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:42,931 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:26:42,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:42,932 INFO L85 PathProgramCache]: Analyzing trace with hash -550399128, now seen corresponding path program 2 times [2024-11-28 03:26:42,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:42,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730989463] [2024-11-28 03:26:42,932 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:26:42,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:42,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:42,934 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:42,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 03:27:15,866 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:27:15,866 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:27:15,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:27:15,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:16,054 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:27:16,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:27:16,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:27:16,358 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:27:16,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:27:16,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 03:27:16,441 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 03:27:16,442 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:27:16,559 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 03:27:16,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 03:27:16,631 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:27:16,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730989463] [2024-11-28 03:27:16,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730989463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:27:16,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [739980858] [2024-11-28 03:27:16,631 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:27:16,632 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:27:16,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:27:16,636 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:27:16,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-28 03:27:18,476 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:27:18,476 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:27:18,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:27:18,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:18,724 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:27:18,724 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:27:19,096 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:27:19,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [739980858] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:27:19,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:27:19,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2024-11-28 03:27:19,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923124818] [2024-11-28 03:27:19,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:27:19,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 03:27:19,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:27:19,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 03:27:19,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=554, Unknown=5, NotChecked=0, Total=650 [2024-11-28 03:27:19,098 INFO L87 Difference]: Start difference. First operand 1270 states and 1456 transitions. Second operand has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:27:35,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:27:35,730 INFO L93 Difference]: Finished difference Result 1676 states and 1986 transitions. [2024-11-28 03:27:35,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-28 03:27:35,730 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 79 [2024-11-28 03:27:35,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:27:35,735 INFO L225 Difference]: With dead ends: 1676 [2024-11-28 03:27:35,735 INFO L226 Difference]: Without dead ends: 1672 [2024-11-28 03:27:35,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=416, Invalid=2333, Unknown=7, NotChecked=0, Total=2756 [2024-11-28 03:27:35,736 INFO L435 NwaCegarLoop]: 702 mSDtfsCounter, 828 mSDsluCounter, 9360 mSDsCounter, 0 mSdLazyCounter, 7037 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 10062 SdHoareTripleChecker+Invalid, 7069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 7037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:27:35,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 10062 Invalid, 7069 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 7037 Invalid, 0 Unknown, 0 Unchecked, 15.2s Time] [2024-11-28 03:27:35,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2024-11-28 03:27:35,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1278. [2024-11-28 03:27:35,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 838 states have (on average 1.727923627684964) internal successors, (1448), 1270 states have internal predecessors, (1448), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:27:35,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1467 transitions. [2024-11-28 03:27:35,761 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1467 transitions. Word has length 79 [2024-11-28 03:27:35,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:27:35,761 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1467 transitions. [2024-11-28 03:27:35,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:27:35,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1467 transitions. [2024-11-28 03:27:35,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 03:27:35,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:27:35,763 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:27:35,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-28 03:27:35,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2024-11-28 03:27:36,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:27:36,164 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:27:36,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:36,164 INFO L85 PathProgramCache]: Analyzing trace with hash -2136081303, now seen corresponding path program 1 times [2024-11-28 03:27:36,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:27:36,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1830050967] [2024-11-28 03:27:36,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:27:36,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:36,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:27:36,167 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:27:36,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 03:27:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:27:36,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 03:27:36,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:36,871 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:27:36,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:27:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:27:37,665 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:27:37,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830050967] [2024-11-28 03:27:37,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830050967] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:27:37,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:27:37,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-28 03:27:37,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906307323] [2024-11-28 03:27:37,666 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:27:37,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 03:27:37,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:27:37,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 03:27:37,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:27:37,671 INFO L87 Difference]: Start difference. First operand 1278 states and 1467 transitions. Second operand has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:27:40,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:27:40,341 INFO L93 Difference]: Finished difference Result 1302 states and 1506 transitions. [2024-11-28 03:27:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 03:27:40,347 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2024-11-28 03:27:40,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:27:40,350 INFO L225 Difference]: With dead ends: 1302 [2024-11-28 03:27:40,350 INFO L226 Difference]: Without dead ends: 1296 [2024-11-28 03:27:40,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 03:27:40,353 INFO L435 NwaCegarLoop]: 1074 mSDtfsCounter, 26 mSDsluCounter, 12849 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 13923 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:27:40,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 13923 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:27:40,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2024-11-28 03:27:40,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1296. [2024-11-28 03:27:40,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 856 states have (on average 1.7184579439252337) internal successors, (1471), 1288 states have internal predecessors, (1471), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:27:40,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1490 transitions. [2024-11-28 03:27:40,373 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1490 transitions. Word has length 85 [2024-11-28 03:27:40,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:27:40,374 INFO L471 AbstractCegarLoop]: Abstraction has 1296 states and 1490 transitions. [2024-11-28 03:27:40,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 03:27:40,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1490 transitions. [2024-11-28 03:27:40,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 03:27:40,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:27:40,375 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:27:40,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 03:27:40,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:40,576 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:27:40,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:40,576 INFO L85 PathProgramCache]: Analyzing trace with hash -2002874775, now seen corresponding path program 2 times [2024-11-28 03:27:40,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:27:40,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1539990545] [2024-11-28 03:27:40,577 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:27:40,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:40,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:27:40,579 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:27:40,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 03:28:20,593 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:28:20,594 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:28:20,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-28 03:28:20,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:20,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:28:20,773 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:28:20,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:28:20,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:28:20,834 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 13 treesize of output 9 [2024-11-28 03:28:21,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 03:28:21,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:28:21,669 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:28:21,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:28:21,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:28:21,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 03:28:21,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:28:21,790 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 03:28:21,791 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:28:22,451 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_1890 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1890) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0)))) (forall ((v_ArrVal_1890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1891 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1890) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1891) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:28:22,455 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:28:22,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539990545] [2024-11-28 03:28:22,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539990545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:28:22,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [399963287] [2024-11-28 03:28:22,456 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:28:22,456 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:28:22,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:28:22,458 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:28:22,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-28 03:28:24,552 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:28:24,553 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:28:24,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 03:28:24,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:26,106 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:28:26,106 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:28:29,271 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:28:29,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [399963287] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:28:29,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:28:29,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 26, 26] total 58 [2024-11-28 03:28:29,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908304016] [2024-11-28 03:28:29,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:28:29,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-28 03:28:29,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:28:29,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-28 03:28:29,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=699, Invalid=2844, Unknown=1, NotChecked=116, Total=3660 [2024-11-28 03:28:29,275 INFO L87 Difference]: Start difference. First operand 1296 states and 1490 transitions. Second operand has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:29:15,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:15,545 INFO L93 Difference]: Finished difference Result 1729 states and 2070 transitions. [2024-11-28 03:29:15,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-28 03:29:15,546 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 97 [2024-11-28 03:29:15,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:15,550 INFO L225 Difference]: With dead ends: 1729 [2024-11-28 03:29:15,550 INFO L226 Difference]: Without dead ends: 1721 [2024-11-28 03:29:15,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3089 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=3106, Invalid=14987, Unknown=1, NotChecked=266, Total=18360 [2024-11-28 03:29:15,555 INFO L435 NwaCegarLoop]: 709 mSDtfsCounter, 848 mSDsluCounter, 18901 mSDsCounter, 0 mSdLazyCounter, 14696 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 19610 SdHoareTripleChecker+Invalid, 14764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 14696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:15,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 19610 Invalid, 14764 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [68 Valid, 14696 Invalid, 0 Unknown, 0 Unchecked, 35.6s Time] [2024-11-28 03:29:15,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2024-11-28 03:29:15,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1329. [2024-11-28 03:29:15,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1329 states, 890 states have (on average 1.698876404494382) internal successors, (1512), 1321 states have internal predecessors, (1512), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:29:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 1531 transitions. [2024-11-28 03:29:15,578 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 1531 transitions. Word has length 97 [2024-11-28 03:29:15,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:15,579 INFO L471 AbstractCegarLoop]: Abstraction has 1329 states and 1531 transitions. [2024-11-28 03:29:15,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:29:15,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 1531 transitions. [2024-11-28 03:29:15,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:29:15,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:15,581 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:15,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 03:29:15,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2024-11-28 03:29:15,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:29:15,982 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:29:15,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:15,983 INFO L85 PathProgramCache]: Analyzing trace with hash 2034306082, now seen corresponding path program 1 times [2024-11-28 03:29:15,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:29:15,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1959993632] [2024-11-28 03:29:15,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:15,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:15,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:15,986 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:15,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 03:29:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:16,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-28 03:29:16,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:16,925 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:29:16,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:29:16,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:29:17,750 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:29:17,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:29:17,915 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:29:17,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:29:17,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 03:29:17,980 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:29:17,980 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:18,138 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2550 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2550) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (_ bv0 1))) is different from false [2024-11-28 03:29:18,736 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2024-11-28 03:29:18,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2024-11-28 03:29:18,750 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2596 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2550 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2596))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2550)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem36#1.base|)) is different from false [2024-11-28 03:29:18,754 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:29:18,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959993632] [2024-11-28 03:29:18,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959993632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:18,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1893369555] [2024-11-28 03:29:18,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:18,755 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:29:18,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:29:18,757 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:29:18,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2024-11-28 03:29:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:22,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-28 03:29:22,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:22,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 03:29:22,851 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 03:29:22,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 03:29:22,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:29:23,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 03:29:24,454 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:29:24,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:29:24,696 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:29:24,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:29:24,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 03:29:24,824 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:29:24,825 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:25,389 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3066 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3066))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2550)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:29:25,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1893369555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:25,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:29:25,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2024-11-28 03:29:25,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017826331] [2024-11-28 03:29:25,391 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:25,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 03:29:25,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:29:25,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 03:29:25,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=387, Unknown=9, NotChecked=126, Total=600 [2024-11-28 03:29:25,393 INFO L87 Difference]: Start difference. First operand 1329 states and 1531 transitions. Second operand has 20 states, 17 states have (on average 7.411764705882353) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:29:40,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:40,954 INFO L93 Difference]: Finished difference Result 1720 states and 2039 transitions. [2024-11-28 03:29:40,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:29:40,954 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 7.411764705882353) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 122 [2024-11-28 03:29:40,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:40,958 INFO L225 Difference]: With dead ends: 1720 [2024-11-28 03:29:40,958 INFO L226 Difference]: Without dead ends: 1720 [2024-11-28 03:29:40,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 231 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=103, Invalid=550, Unknown=9, NotChecked=150, Total=812 [2024-11-28 03:29:40,959 INFO L435 NwaCegarLoop]: 701 mSDtfsCounter, 774 mSDsluCounter, 7809 mSDsCounter, 0 mSdLazyCounter, 6939 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 8510 SdHoareTripleChecker+Invalid, 6954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 6939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:40,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 8510 Invalid, 6954 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 6939 Invalid, 0 Unknown, 0 Unchecked, 15.2s Time] [2024-11-28 03:29:40,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2024-11-28 03:29:40,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1328. [2024-11-28 03:29:40,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 890 states have (on average 1.6977528089887641) internal successors, (1511), 1320 states have internal predecessors, (1511), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:29:40,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 1530 transitions. [2024-11-28 03:29:40,979 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 1530 transitions. Word has length 122 [2024-11-28 03:29:40,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:40,979 INFO L471 AbstractCegarLoop]: Abstraction has 1328 states and 1530 transitions. [2024-11-28 03:29:40,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 7.411764705882353) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:29:40,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 1530 transitions. [2024-11-28 03:29:40,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 03:29:40,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:40,981 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:29:41,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 03:29:41,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2024-11-28 03:29:41,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:29:41,382 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:29:41,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:41,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2034306083, now seen corresponding path program 1 times [2024-11-28 03:29:41,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:29:41,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173294796] [2024-11-28 03:29:41,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:41,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:29:41,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:29:41,385 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:29:41,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 03:29:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:41,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-11-28 03:29:41,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:42,120 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:29:42,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:29:42,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:29:42,157 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 13 treesize of output 9 [2024-11-28 03:29:42,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:29:42,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 03:29:42,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:29:43,140 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:29:43,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:29:43,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:29:43,268 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:29:43,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:29:43,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:29:43,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 03:29:43,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:29:43,336 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:29:43,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:43,641 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_3536 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3535 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3536) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3535) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_3536 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3536) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse2) (bvadd (_ bv8 32) .cse2))))))) is different from false [2024-11-28 03:29:45,099 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3628 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3627 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3536 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3535 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3628))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3627) .cse0 v_ArrVal_3536) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_3535) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_3628 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3627 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3536 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3627) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3628) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3536) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse3 (_ bv4 32)) (bvadd .cse3 (_ bv8 32))))))) is different from false [2024-11-28 03:29:45,107 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:29:45,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173294796] [2024-11-28 03:29:45,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173294796] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:45,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1760048417] [2024-11-28 03:29:45,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:45,107 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:29:45,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:29:45,109 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:29:45,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2024-11-28 03:29:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:48,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 113 conjuncts are in the unsatisfiable core [2024-11-28 03:29:48,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:48,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 03:29:48,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:29:48,999 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:29:49,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:29:49,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:29:49,018 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 13 treesize of output 9 [2024-11-28 03:29:49,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 03:29:49,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:29:49,914 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:29:49,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:29:49,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:29:50,023 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:29:50,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:29:50,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:29:50,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 03:29:50,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:29:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:29:50,080 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:51,828 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4191 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3536 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4190 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3535 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4191))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4190) .cse0 v_ArrVal_3536) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_3535) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_4191 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3536 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4190 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4190) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4191) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3536) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3)))))) is different from false [2024-11-28 03:29:51,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1760048417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:51,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:29:51,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 10 [2024-11-28 03:29:51,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467039819] [2024-11-28 03:29:51,836 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:29:51,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:29:51,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:29:51,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:29:51,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=147, Unknown=8, NotChecked=78, Total=272 [2024-11-28 03:29:51,837 INFO L87 Difference]: Start difference. First operand 1328 states and 1530 transitions. Second operand has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:30:04,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:04,462 INFO L93 Difference]: Finished difference Result 1717 states and 2036 transitions. [2024-11-28 03:30:04,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:30:04,462 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2024-11-28 03:30:04,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:04,466 INFO L225 Difference]: With dead ends: 1717 [2024-11-28 03:30:04,466 INFO L226 Difference]: Without dead ends: 1717 [2024-11-28 03:30:04,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 237 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=75, Invalid=308, Unknown=9, NotChecked=114, Total=506 [2024-11-28 03:30:04,467 INFO L435 NwaCegarLoop]: 709 mSDtfsCounter, 774 mSDsluCounter, 3919 mSDsCounter, 0 mSdLazyCounter, 5651 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 4628 SdHoareTripleChecker+Invalid, 5658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 5651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:04,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 4628 Invalid, 5658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 5651 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2024-11-28 03:30:04,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2024-11-28 03:30:04,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1327. [2024-11-28 03:30:04,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 890 states have (on average 1.696629213483146) internal successors, (1510), 1319 states have internal predecessors, (1510), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:30:04,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1529 transitions. [2024-11-28 03:30:04,484 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1529 transitions. Word has length 122 [2024-11-28 03:30:04,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:04,485 INFO L471 AbstractCegarLoop]: Abstraction has 1327 states and 1529 transitions. [2024-11-28 03:30:04,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:30:04,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1529 transitions. [2024-11-28 03:30:04,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:30:04,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:04,486 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:04,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-28 03:30:04,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2024-11-28 03:30:04,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:30:04,887 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:30:04,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:04,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2024273999, now seen corresponding path program 1 times [2024-11-28 03:30:04,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:30:04,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1903111649] [2024-11-28 03:30:04,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:04,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:04,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:04,890 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:04,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 03:30:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:05,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-28 03:30:05,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:05,640 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:30:05,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:30:05,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:30:06,182 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:30:06,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:30:06,291 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:30:06,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:30:06,362 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:30:06,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:30:06,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 03:30:06,398 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:30:06,398 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:06,487 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4629 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_4629) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 03:30:06,504 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4629 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4628 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_4628))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4629)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:30:06,515 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4629 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4628 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4628))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4629)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:30:06,938 INFO L349 Elim1Store]: treesize reduction 7, result has 87.3 percent of original size [2024-11-28 03:30:06,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 60 [2024-11-28 03:30:06,949 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4629 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4628 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4675 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4675))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4628)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4629)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem36#1.base|)) is different from false [2024-11-28 03:30:06,951 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:30:06,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903111649] [2024-11-28 03:30:06,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903111649] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:06,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [819705462] [2024-11-28 03:30:06,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:06,951 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:30:06,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:30:06,953 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:30:06,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2024-11-28 03:30:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:19,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-28 03:30:19,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:19,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 03:30:19,470 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 03:30:19,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 03:30:19,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:30:19,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 03:30:20,589 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:30:20,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:30:20,746 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:30:20,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:30:20,846 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:30:20,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:30:20,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 03:30:20,925 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:30:20,925 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:20,940 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5116) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-28 03:30:20,947 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_5116) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 03:30:20,959 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5115 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5115))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5116)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:30:20,970 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5115 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5115))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5116)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:30:21,414 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5162 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5115 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5116 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5162))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5115)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5116)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:30:21,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [819705462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:21,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:30:21,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 21 [2024-11-28 03:30:21,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040488250] [2024-11-28 03:30:21,417 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:30:21,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 03:30:21,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:30:21,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 03:30:21,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=469, Unknown=16, NotChecked=468, Total=1056 [2024-11-28 03:30:21,418 INFO L87 Difference]: Start difference. First operand 1327 states and 1529 transitions. Second operand has 22 states, 19 states have (on average 6.947368421052632) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:30:30,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:30:30,672 INFO L93 Difference]: Finished difference Result 1718 states and 2037 transitions. [2024-11-28 03:30:30,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:30:30,672 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 6.947368421052632) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 125 [2024-11-28 03:30:30,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:30:30,675 INFO L225 Difference]: With dead ends: 1718 [2024-11-28 03:30:30,675 INFO L226 Difference]: Without dead ends: 1718 [2024-11-28 03:30:30,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=647, Unknown=17, NotChecked=540, Total=1332 [2024-11-28 03:30:30,676 INFO L435 NwaCegarLoop]: 700 mSDtfsCounter, 773 mSDsluCounter, 5154 mSDsCounter, 0 mSdLazyCounter, 4492 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 5854 SdHoareTripleChecker+Invalid, 4508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 4492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:30:30,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 5854 Invalid, 4508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 4492 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2024-11-28 03:30:30,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2024-11-28 03:30:30,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1326. [2024-11-28 03:30:30,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 890 states have (on average 1.695505617977528) internal successors, (1509), 1318 states have internal predecessors, (1509), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:30:30,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1528 transitions. [2024-11-28 03:30:30,693 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1528 transitions. Word has length 125 [2024-11-28 03:30:30,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:30:30,693 INFO L471 AbstractCegarLoop]: Abstraction has 1326 states and 1528 transitions. [2024-11-28 03:30:30,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 6.947368421052632) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:30:30,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1528 transitions. [2024-11-28 03:30:30,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:30:30,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:30:30,695 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:30:30,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-28 03:30:30,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2024-11-28 03:30:31,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:30:31,096 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:30:31,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:30:31,097 INFO L85 PathProgramCache]: Analyzing trace with hash 2024274000, now seen corresponding path program 1 times [2024-11-28 03:30:31,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:30:31,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1787958947] [2024-11-28 03:30:31,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:31,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:30:31,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:30:31,100 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:30:31,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 03:30:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:31,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 115 conjuncts are in the unsatisfiable core [2024-11-28 03:30:31,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:31,975 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:30:31,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:30:31,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:30:32,012 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 13 treesize of output 9 [2024-11-28 03:30:32,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:30:32,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 03:30:32,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:30:32,869 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:30:32,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:30:32,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:30:32,993 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:30:32,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:30:33,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:30:33,088 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:30:33,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:30:33,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:30:33,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 03:30:33,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:30:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:30:33,150 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:33,289 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5648 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5648) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5649 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5648 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5648) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_5649) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:30:33,319 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_5649 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5648 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5648) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5649) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_5648 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5648) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse2) (bvadd (_ bv12 32) .cse2))))))) is different from false [2024-11-28 03:30:33,413 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5646 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5647 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5648 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5647) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5646) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5648) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5649 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5646 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5647 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5648 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5646))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_5647) .cse2 v_ArrVal_5648) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_5649) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 03:30:33,463 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5649 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5646 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5647 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5648 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5646))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5647) .cse1 v_ArrVal_5648) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_5649) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_5646 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5647 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5648 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5647) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5646) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5648) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse4 (_ bv8 32)) (bvadd .cse4 (_ bv12 32)))))))) is different from false [2024-11-28 03:30:34,975 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5649 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5646 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5647 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5648 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5740 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5741 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5740))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_5646))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5741) .cse0 v_ArrVal_5647) .cse1 v_ArrVal_5648) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_5649) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_5646 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5647 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5648 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5740 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5741 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5740))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5741) .cse6 v_ArrVal_5647) (select (select (store .cse7 .cse6 v_ArrVal_5646) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5648))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse5) (bvadd (_ bv12 32) .cse5)))))) is different from false [2024-11-28 03:30:34,984 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:30:34,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787958947] [2024-11-28 03:30:34,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787958947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:34,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1010321011] [2024-11-28 03:30:34,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:30:34,985 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:30:34,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:30:34,986 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:30:34,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2024-11-28 03:30:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:30:47,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 117 conjuncts are in the unsatisfiable core [2024-11-28 03:30:47,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:30:47,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 03:30:47,979 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:30:47,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:30:47,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:30:48,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:30:48,011 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 13 treesize of output 9 [2024-11-28 03:30:48,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 03:30:48,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:30:49,098 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:30:49,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:30:49,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:30:49,206 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:30:49,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:30:49,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:30:49,292 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:30:49,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:30:49,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:30:49,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 03:30:49,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:30:49,347 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:30:49,347 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:49,405 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6228 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6229 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6228) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6229) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_6228 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6228) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv8 32) .cse1) (bvadd (_ bv12 32) .cse1)))))) is different from false [2024-11-28 03:30:49,442 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6228 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_6228) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6228 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6229 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_6228) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_6229) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 03:30:49,505 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6228 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6229 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6226 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6227 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6226))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6227) .cse0 v_ArrVal_6228) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_6229) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_6228 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6226 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6227 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6227) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6226) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6228) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd (_ bv12 32) .cse3)))))) is different from false [2024-11-28 03:30:49,550 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6228 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6229 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6226 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6227 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6226))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_6227) .cse1 v_ArrVal_6228) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_6229) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_6228 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6226 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6227 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_6227) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6226) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6228) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse4 (_ bv8 32)) (bvadd .cse4 (_ bv12 32)))))))) is different from false [2024-11-28 03:30:51,122 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6228 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6229 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6226 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6227 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6320 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6321 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6321))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_6226))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6320) .cse0 v_ArrVal_6227) .cse1 v_ArrVal_6228) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_6229) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_6228 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6226 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6227 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6320 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6321 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6321))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6320) .cse6 v_ArrVal_6227) (select (select (store .cse7 .cse6 v_ArrVal_6226) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6228))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse5) (bvadd (_ bv12 32) .cse5)))))) is different from false [2024-11-28 03:30:51,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1010321011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:51,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:30:51,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 11 [2024-11-28 03:30:51,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078468194] [2024-11-28 03:30:51,129 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:30:51,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:30:51,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:30:51,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:30:51,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=158, Unknown=10, NotChecked=330, Total=552 [2024-11-28 03:30:51,130 INFO L87 Difference]: Start difference. First operand 1326 states and 1528 transitions. Second operand has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:31:03,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:03,351 INFO L93 Difference]: Finished difference Result 1715 states and 2034 transitions. [2024-11-28 03:31:03,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:31:03,352 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2024-11-28 03:31:03,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:03,354 INFO L225 Difference]: With dead ends: 1715 [2024-11-28 03:31:03,354 INFO L226 Difference]: Without dead ends: 1715 [2024-11-28 03:31:03,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 243 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=96, Invalid=354, Unknown=10, NotChecked=470, Total=930 [2024-11-28 03:31:03,355 INFO L435 NwaCegarLoop]: 708 mSDtfsCounter, 772 mSDsluCounter, 3081 mSDsCounter, 0 mSdLazyCounter, 4336 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 3789 SdHoareTripleChecker+Invalid, 4343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:03,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 3789 Invalid, 4343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 4336 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2024-11-28 03:31:03,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2024-11-28 03:31:03,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1325. [2024-11-28 03:31:03,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 890 states have (on average 1.6943820224719102) internal successors, (1508), 1317 states have internal predecessors, (1508), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:31:03,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1527 transitions. [2024-11-28 03:31:03,369 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1527 transitions. Word has length 125 [2024-11-28 03:31:03,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:03,369 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 1527 transitions. [2024-11-28 03:31:03,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:31:03,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1527 transitions. [2024-11-28 03:31:03,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 03:31:03,370 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:03,370 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:03,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 03:31:03,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2024-11-28 03:31:03,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:31:03,771 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:31:03,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:03,772 INFO L85 PathProgramCache]: Analyzing trace with hash -488760279, now seen corresponding path program 1 times [2024-11-28 03:31:03,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:31:03,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1348186449] [2024-11-28 03:31:03,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:03,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:31:03,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:31:03,774 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:31:03,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 03:31:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:04,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-28 03:31:04,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:04,764 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:31:04,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:31:04,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:31:05,206 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:31:05,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 03:31:05,293 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:31:05,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 03:31:05,371 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:31:05,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 03:31:05,454 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:31:05,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:31:05,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 03:31:05,562 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:31:05,562 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:31:05,628 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 03:31:05,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 03:31:05,715 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6775 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= .cse0 (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6775) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false [2024-11-28 03:31:05,731 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6774 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6775 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_6774)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_6775) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1)))) is different from false [2024-11-28 03:31:05,742 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6774 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6775 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6774))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_6775) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-28 03:31:05,761 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6774 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6775 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6773 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6773))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6774)))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_6775) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-28 03:31:05,776 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6774 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6775 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6773 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6773))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6774)))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_6775) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-28 03:31:06,232 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6774 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6775 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6821 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6773 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6821))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6773)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6774)))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_6775) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-28 03:31:06,235 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:31:06,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348186449] [2024-11-28 03:31:06,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348186449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:31:06,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1287784761] [2024-11-28 03:31:06,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:06,236 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:31:06,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:31:06,237 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:31:06,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2024-11-28 03:31:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:22,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-28 03:31:22,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:22,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 03:31:22,350 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 03:31:22,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 03:31:22,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:31:22,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 03:31:23,918 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:31:23,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:31:24,141 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:31:24,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:31:24,286 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:31:24,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:31:24,429 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:31:24,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:31:24,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 03:31:24,540 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:31:24,540 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:31:24,670 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7278 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_7278) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (_ bv1 1)))) is different from false [2024-11-28 03:31:24,693 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7277 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7278 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7277))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7278)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-28 03:31:24,709 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7277 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7278 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7277))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7278)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:31:24,737 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7276 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7277 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7278 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7276))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7277)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7278)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:31:24,757 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7276 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7277 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7278 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7276))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7277)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7278)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:31:25,224 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7276 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7277 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7278 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7324))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7276)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7277)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7278)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:31:25,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1287784761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:31:25,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:31:25,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2024-11-28 03:31:25,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796061391] [2024-11-28 03:31:25,229 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:31:25,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:31:25,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:31:25,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:31:25,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=549, Unknown=31, NotChecked=708, Total=1406 [2024-11-28 03:31:25,230 INFO L87 Difference]: Start difference. First operand 1325 states and 1527 transitions. Second operand has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:31:43,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:43,191 INFO L93 Difference]: Finished difference Result 1716 states and 2035 transitions. [2024-11-28 03:31:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:31:43,192 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 128 [2024-11-28 03:31:43,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:43,195 INFO L225 Difference]: With dead ends: 1716 [2024-11-28 03:31:43,195 INFO L226 Difference]: Without dead ends: 1716 [2024-11-28 03:31:43,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 12 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=131, Invalid=642, Unknown=31, NotChecked=756, Total=1560 [2024-11-28 03:31:43,196 INFO L435 NwaCegarLoop]: 701 mSDtfsCounter, 764 mSDsluCounter, 8128 mSDsCounter, 0 mSdLazyCounter, 6836 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 8829 SdHoareTripleChecker+Invalid, 6850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 6836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:43,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 8829 Invalid, 6850 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 6836 Invalid, 0 Unknown, 0 Unchecked, 17.7s Time] [2024-11-28 03:31:43,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-11-28 03:31:43,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1324. [2024-11-28 03:31:43,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 890 states have (on average 1.693258426966292) internal successors, (1507), 1316 states have internal predecessors, (1507), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:31:43,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1526 transitions. [2024-11-28 03:31:43,214 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1526 transitions. Word has length 128 [2024-11-28 03:31:43,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:43,215 INFO L471 AbstractCegarLoop]: Abstraction has 1324 states and 1526 transitions. [2024-11-28 03:31:43,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:31:43,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1526 transitions. [2024-11-28 03:31:43,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 03:31:43,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:43,216 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:31:43,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-28 03:31:43,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2024-11-28 03:31:43,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:31:43,617 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:31:43,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:43,618 INFO L85 PathProgramCache]: Analyzing trace with hash -488760278, now seen corresponding path program 1 times [2024-11-28 03:31:43,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:31:43,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1977442209] [2024-11-28 03:31:43,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:43,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:31:43,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:31:43,620 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:31:43,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 03:31:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:44,479 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-11-28 03:31:44,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:44,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:31:44,687 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:31:44,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:31:44,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:31:44,733 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 13 treesize of output 9 [2024-11-28 03:31:44,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 03:31:44,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:31:45,956 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:31:45,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:31:45,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:31:46,117 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:31:46,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:31:46,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:31:46,255 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:31:46,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:31:46,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:31:46,395 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:31:46,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:31:46,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:31:46,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 03:31:46,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:31:46,503 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:31:46,503 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:31:46,699 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7828 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_7828) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:31:46,730 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7828 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7828) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 03:31:46,811 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7826) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7825) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7828 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7825))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_7826) .cse2 v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_7828) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 03:31:46,863 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7826) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7825) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7828 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7825))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7826) .cse3 v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_7828) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-28 03:31:47,044 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7828 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7824 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7823 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7824))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_7825))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7823) .cse0 v_ArrVal_7826) .cse1 v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_7828) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7824 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7823 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7824))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7823) .cse6 v_ArrVal_7826) (select (select (store .cse7 .cse6 v_ArrVal_7825) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7827))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse5) (bvadd (_ bv24 32) .cse5)))))) is different from false [2024-11-28 03:31:47,772 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (forall ((v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7824 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7823 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7824))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7823) .cse2 v_ArrVal_7826) (select (select (store .cse3 .cse2 v_ArrVal_7825) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_7827))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7828 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7824 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7823 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7824))) (let ((.cse5 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse7 (store .cse8 .cse5 v_ArrVal_7825))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7823) .cse5 v_ArrVal_7826) .cse6 v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse7 .cse6 v_ArrVal_7828) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))) is different from false [2024-11-28 03:31:51,633 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7828 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7824 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7823 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7920 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7919 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7920))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_7824))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_7825))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7919) .cse0 v_ArrVal_7823) .cse1 v_ArrVal_7826) .cse2 v_ArrVal_7827) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_7828) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_7827 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7826 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7824 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7823 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7920 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7919 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7920))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_7824))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7919) .cse8 v_ArrVal_7823) .cse9 v_ArrVal_7826) (select (select (store .cse10 .cse9 v_ArrVal_7825) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_7827))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse7) (bvadd (_ bv24 32) .cse7)))))) is different from false [2024-11-28 03:31:51,658 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:31:51,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977442209] [2024-11-28 03:31:51,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977442209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:31:51,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [484914166] [2024-11-28 03:31:51,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:51,659 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:31:51,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:31:51,661 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:31:51,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2024-11-28 03:32:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:10,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 120 conjuncts are in the unsatisfiable core [2024-11-28 03:32:10,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:10,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 03:32:11,139 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:32:11,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:32:11,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:32:11,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:32:11,239 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 13 treesize of output 9 [2024-11-28 03:32:11,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 03:32:11,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:32:14,927 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:32:14,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:32:14,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:32:15,307 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:32:15,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:32:15,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:32:15,583 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:32:15,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:32:15,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:32:15,865 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:32:15,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 03:32:15,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:32:16,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 03:32:16,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:32:16,079 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:32:16,079 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:32:16,256 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8426 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8425 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8425) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8426) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_8425 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8425) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd .cse1 (_ bv20 32)) (bvadd .cse1 (_ bv24 32))))))) is different from false [2024-11-28 03:32:16,327 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_8426 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8425 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8425) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8426) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_8425 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8425) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse2) (bvadd (_ bv24 32) .cse2))))))) is different from false [2024-11-28 03:32:16,514 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8425 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8424) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8423) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8425) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_8426 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8425 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8423))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8424) .cse2 v_ArrVal_8425) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv24 32)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_8426) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 03:32:16,607 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8425 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8424) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8423) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8425) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8426 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8425 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8423))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8424) .cse3 v_ArrVal_8425) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_8426) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-28 03:32:22,021 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (forall ((v_ArrVal_8425 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8422 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8421 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8422))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8421) .cse2 v_ArrVal_8424) (select (select (store .cse3 .cse2 v_ArrVal_8423) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_8425))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8426 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8425 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8422 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8421 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8422))) (let ((.cse5 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse7 (store .cse8 .cse5 v_ArrVal_8423))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8421) .cse5 v_ArrVal_8424) .cse6 v_ArrVal_8425) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse7 .cse6 v_ArrVal_8426) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))) is different from false [2024-11-28 03:32:29,330 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8518 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8517 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8425 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8422 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8421 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse5 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8518))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_8422))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8517) .cse1 v_ArrVal_8421) .cse2 v_ArrVal_8424) (select (select (store .cse3 .cse2 v_ArrVal_8423) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_8425))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8518 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8517 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8426 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8425 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8424 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8423 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8422 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8421 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8518))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse10 (store .cse11 .cse6 v_ArrVal_8422))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_8423))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8517) .cse6 v_ArrVal_8421) .cse7 v_ArrVal_8424) .cse8 v_ArrVal_8425) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse9 .cse8 v_ArrVal_8426) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) is different from false [2024-11-28 03:32:29,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [484914166] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:29,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:32:29,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 12 [2024-11-28 03:32:29,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436740260] [2024-11-28 03:32:29,369 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:32:29,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:32:29,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:32:29,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:32:29,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=206, Unknown=19, NotChecked=520, Total=812 [2024-11-28 03:32:29,371 INFO L87 Difference]: Start difference. First operand 1324 states and 1526 transitions. Second operand has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:34:10,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:34:10,195 INFO L93 Difference]: Finished difference Result 1713 states and 2032 transitions. [2024-11-28 03:34:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:34:10,196 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2024-11-28 03:34:10,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:34:10,199 INFO L225 Difference]: With dead ends: 1713 [2024-11-28 03:34:10,199 INFO L226 Difference]: Without dead ends: 1713 [2024-11-28 03:34:10,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 250 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=117, Invalid=468, Unknown=19, NotChecked=728, Total=1332 [2024-11-28 03:34:10,199 INFO L435 NwaCegarLoop]: 707 mSDtfsCounter, 770 mSDsluCounter, 3925 mSDsCounter, 0 mSdLazyCounter, 5637 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 95.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 4632 SdHoareTripleChecker+Invalid, 5644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 5637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:34:10,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 4632 Invalid, 5644 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 5637 Invalid, 0 Unknown, 0 Unchecked, 97.3s Time] [2024-11-28 03:34:10,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2024-11-28 03:34:10,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1323. [2024-11-28 03:34:10,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1323 states, 890 states have (on average 1.6921348314606741) internal successors, (1506), 1315 states have internal predecessors, (1506), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:34:10,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1525 transitions. [2024-11-28 03:34:10,215 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1525 transitions. Word has length 128 [2024-11-28 03:34:10,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:34:10,216 INFO L471 AbstractCegarLoop]: Abstraction has 1323 states and 1525 transitions. [2024-11-28 03:34:10,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:34:10,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1525 transitions. [2024-11-28 03:34:10,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 03:34:10,217 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:34:10,217 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:34:10,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-28 03:34:10,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2024-11-28 03:34:10,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:34:10,617 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:34:10,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:34:10,618 INFO L85 PathProgramCache]: Analyzing trace with hash -782935317, now seen corresponding path program 1 times [2024-11-28 03:34:10,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:34:10,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [142790927] [2024-11-28 03:34:10,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:10,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:34:10,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:34:10,620 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:34:10,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 03:34:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:11,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-28 03:34:11,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:13,249 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:34:13,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:34:13,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:34:18,874 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:34:18,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:34:19,977 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:34:19,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:34:20,800 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:34:20,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:34:21,670 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:34:21,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:34:22,584 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:34:22,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:34:22,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 03:34:23,507 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-28 03:34:23,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-28 03:34:23,541 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:34:23,541 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:24,574 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8990 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem41#1.base| v_ArrVal_8990) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-28 03:34:24,648 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8990 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_8990) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 03:34:24,759 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8990 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8989 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_8989))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8990)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-28 03:34:24,838 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8990 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8989 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8989))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8990)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:34:24,953 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8990 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8989 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8988 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8988))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8989)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8990)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-28 03:34:25,034 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8990 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8989 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8988 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8988))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8989)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8990)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-28 03:34:25,156 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8990 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8989 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8988 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8987 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8987))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8988)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8989)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8990)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:34:25,243 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8990 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8989 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8988 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8987 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8987))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8988)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8989)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8990)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:34:27,637 INFO L349 Elim1Store]: treesize reduction 7, result has 96.5 percent of original size [2024-11-28 03:34:27,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 205 treesize of output 204 [2024-11-28 03:34:27,714 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8990 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8989 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8988 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8987 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9037 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem36#1.base| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_9037))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8987)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8988)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8989)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8990)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2024-11-28 03:34:27,734 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:34:27,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142790927] [2024-11-28 03:34:27,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142790927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:27,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [629606625] [2024-11-28 03:34:27,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:34:27,734 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:34:27,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:34:27,736 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:34:27,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2024-11-28 03:34:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:34:36,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-28 03:34:36,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:34:36,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 03:34:39,005 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 03:34:39,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 03:34:39,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:34:41,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 03:34:52,375 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:34:52,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:34:54,089 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:34:54,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:34:55,290 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:34:55,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:34:56,512 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:34:56,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:34:57,699 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:34:57,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 03:34:57,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 03:34:59,274 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-28 03:34:59,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-28 03:34:59,373 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:34:59,373 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:35:01,080 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9511 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_9511) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 03:35:01,190 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9511 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9510 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_9510))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9511)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:35:01,269 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9511 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9510 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9510))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9511)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:35:01,384 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9509 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9511 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9510 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_9509))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9510)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9511)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:35:01,468 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9509 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9511 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9510 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9509))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9510)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9511)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:35:01,587 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9509 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9508 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9511 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9510 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_9508))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9509)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9510)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9511)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:35:01,675 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9509 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9508 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9511 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9510 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9508))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9509)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9510)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9511)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 03:35:04,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [629606625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:35:04,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:35:04,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2024-11-28 03:35:04,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65332630] [2024-11-28 03:35:04,665 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:35:04,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 03:35:04,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:35:04,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 03:35:04,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=755, Unknown=25, NotChecked=1136, Total=2070 [2024-11-28 03:35:04,666 INFO L87 Difference]: Start difference. First operand 1323 states and 1525 transitions. Second operand has 27 states, 24 states have (on average 6.083333333333333) internal successors, (146), 25 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:37:05,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:05,084 INFO L93 Difference]: Finished difference Result 1714 states and 2033 transitions. [2024-11-28 03:37:05,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:37:05,085 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 6.083333333333333) internal successors, (146), 25 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 132 [2024-11-28 03:37:05,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:05,089 INFO L225 Difference]: With dead ends: 1714 [2024-11-28 03:37:05,089 INFO L226 Difference]: Without dead ends: 1714 [2024-11-28 03:37:05,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 16 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=167, Invalid=864, Unknown=25, NotChecked=1200, Total=2256 [2024-11-28 03:37:05,090 INFO L435 NwaCegarLoop]: 698 mSDtfsCounter, 761 mSDsluCounter, 7935 mSDsCounter, 0 mSdLazyCounter, 7041 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 117.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 8633 SdHoareTripleChecker+Invalid, 7058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 7041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:05,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 8633 Invalid, 7058 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 7041 Invalid, 0 Unknown, 0 Unchecked, 119.6s Time] [2024-11-28 03:37:05,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2024-11-28 03:37:05,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 1322. [2024-11-28 03:37:05,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 890 states have (on average 1.6910112359550562) internal successors, (1505), 1314 states have internal predecessors, (1505), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 03:37:05,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1524 transitions. [2024-11-28 03:37:05,109 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1524 transitions. Word has length 132 [2024-11-28 03:37:05,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:05,109 INFO L471 AbstractCegarLoop]: Abstraction has 1322 states and 1524 transitions. [2024-11-28 03:37:05,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 6.083333333333333) internal successors, (146), 25 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:37:05,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1524 transitions. [2024-11-28 03:37:05,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 03:37:05,111 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:05,111 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:37:05,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-28 03:37:05,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2024-11-28 03:37:05,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:37:05,512 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr97REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-28 03:37:05,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:05,513 INFO L85 PathProgramCache]: Analyzing trace with hash -782935316, now seen corresponding path program 1 times [2024-11-28 03:37:05,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:37:05,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1579033260] [2024-11-28 03:37:05,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:05,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:37:05,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:37:05,516 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:37:05,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 03:37:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:06,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 124 conjuncts are in the unsatisfiable core [2024-11-28 03:37:06,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:37:08,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 03:37:08,330 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:37:08,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:37:08,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:37:08,660 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 13 treesize of output 9 [2024-11-28 03:37:09,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 03:37:09,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:37:19,004 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:37:19,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 03:37:19,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:37:20,732 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:37:20,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 03:37:20,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:37:22,045 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:37:22,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 03:37:22,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:37:23,387 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:37:23,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 03:37:23,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:37:24,777 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 03:37:24,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 03:37:24,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 03:37:25,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 20 [2024-11-28 03:37:25,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 03:37:25,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:37:26,188 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-28 03:37:26,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 21 [2024-11-28 03:37:26,372 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 03:37:26,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 03:37:26,853 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 03:37:26,853 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:37:34,999 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_10080 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (or (forall ((v_ArrVal_10082 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem41#1.base| v_ArrVal_10081) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10082) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem41#1.base| v_ArrVal_10080) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (or (forall ((v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem41#1.base| v_ArrVal_10081) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule .cse1 (bvadd (_ bv4 32) .cse1)))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))))) is different from false [2024-11-28 03:37:35,235 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (or (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|)))) (forall ((v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_10081) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule .cse0 (bvadd (_ bv4 32) .cse0))))) (forall ((v_ArrVal_10080 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))) (forall ((v_ArrVal_10082 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_10081) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10082) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_10080) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-28 03:37:35,660 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (or (forall ((v_ArrVal_10078 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10079 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_10078) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_10079) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_10081) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (forall ((v_ArrVal_10078 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10079 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10080 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))) (forall ((v_ArrVal_10082 (_ BitVec 32))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_10079))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem40#1.base| v_ArrVal_10078) .cse2 v_ArrVal_10081) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10082) (select (select (store .cse3 .cse2 v_ArrVal_10080) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))))) is different from false [2024-11-28 03:37:35,927 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_10078 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10079 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10080 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))) (forall ((v_ArrVal_10082 (_ BitVec 32))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_10079))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_10078) .cse1 v_ArrVal_10081) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10082) (select (select (store .cse3 .cse1 v_ArrVal_10080) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (or (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|)))) (forall ((v_ArrVal_10078 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10079 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_10078) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_10079) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_10081) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule .cse4 (bvadd (_ bv4 32) .cse4)))))))) is different from false [2024-11-28 03:37:36,354 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (or (forall ((v_ArrVal_10076 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10077 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10078 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10079 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_10077))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_10076) .cse1 v_ArrVal_10078) (select (select (store .cse2 .cse1 v_ArrVal_10079) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_10081))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (forall ((v_ArrVal_10076 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10077 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10078 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10079 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10080 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (or (forall ((v_ArrVal_10082 (_ BitVec 32))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_10077))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_10079))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_10076) .cse4 v_ArrVal_10078) .cse5 v_ArrVal_10081) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10082) (select (select (store .cse6 .cse5 v_ArrVal_10080) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))))) is different from false [2024-11-28 03:37:40,108 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (and (forall ((v_ArrVal_10076 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10077 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10078 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10079 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10080 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (or (forall ((v_ArrVal_10082 (_ BitVec 32))) (let ((.cse5 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_10077))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_10079))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_10076) .cse1 v_ArrVal_10078) .cse2 v_ArrVal_10081) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10082) (select (select (store .cse4 .cse2 v_ArrVal_10080) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (or (forall ((v_ArrVal_10076 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10077 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10078 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10079 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (select (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_10077))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_10076) .cse7 v_ArrVal_10078) (select (select (store .cse8 .cse7 v_ArrVal_10079) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_10081))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule .cse6 (bvadd (_ bv4 32) .cse6)))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|)))))))) is different from false [2024-11-28 03:37:40,620 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_10076 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10077 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10074 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10075 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10078 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10079 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10080 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))) (forall ((v_ArrVal_10082 (_ BitVec 32))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_10075))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_10077))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_10079))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_10074) .cse0 v_ArrVal_10076) .cse1 v_ArrVal_10078) .cse2 v_ArrVal_10081) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv4 32)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10082) (select (select (store .cse4 .cse2 v_ArrVal_10080) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))))) (or (forall ((v_ArrVal_10076 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10077 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10074 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10075 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10078 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10079 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_10075))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_10077))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_10074) .cse8 v_ArrVal_10076) .cse9 v_ArrVal_10078) (select (select (store .cse10 .cse9 v_ArrVal_10079) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_10081))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule .cse7 (bvadd .cse7 (_ bv4 32))))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))))) is different from false [2024-11-28 03:37:40,915 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (and (or (forall ((v_ArrVal_10076 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10077 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10074 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10075 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10078 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10079 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse6 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_10075))) (let ((.cse2 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse4 (store .cse6 .cse2 v_ArrVal_10077))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_10074) .cse2 v_ArrVal_10076) .cse3 v_ArrVal_10078) (select (select (store .cse4 .cse3 v_ArrVal_10079) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_10081))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))))) (forall ((v_ArrVal_10076 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10077 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10074 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10075 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10078 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10079 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10080 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc43#1.base_8| (_ BitVec 32)) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc43#1.base_8|))) (forall ((v_ArrVal_10082 (_ BitVec 32))) (let ((.cse12 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_10075))) (let ((.cse7 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse11 (store .cse12 .cse7 v_ArrVal_10077))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_10079))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_10074) .cse7 v_ArrVal_10076) .cse8 v_ArrVal_10078) .cse9 v_ArrVal_10081) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc43#1.base_8| v_ArrVal_10082) (select (select (store .cse10 .cse9 v_ArrVal_10080) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))))))))))))))) is different from false [2024-11-28 03:37:46,544 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:37:46,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 795 treesize of output 819 [2024-11-28 03:37:52,138 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_10076 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10077 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10173 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10074 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10174 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10075 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10078 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10079 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10081 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_10174))) (let ((.cse1 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse6 (store .cse7 .cse1 v_ArrVal_10075))) (let ((.cse2 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse4 (store .cse6 .cse2 v_ArrVal_10077))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_10173) .cse1 v_ArrVal_10074) .cse2 v_ArrVal_10076) .cse3 v_ArrVal_10078) (select (select (store .cse4 .cse3 v_ArrVal_10079) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_ArrVal_10081))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_prenex_39 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_40 (_ BitVec 32)) (v_prenex_37 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_38 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_35 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10082 (_ BitVec 32)) (v_prenex_36 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_33 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_34 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_32 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10080 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_41 (Array (_ BitVec 32) (_ BitVec 32)))) (or (let ((.cse15 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_prenex_36))) (let ((.cse8 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse14 (store .cse15 .cse8 v_prenex_37))) (let ((.cse9 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse13 (store .cse14 .cse9 v_prenex_33))) (let ((.cse10 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse12 (store .cse13 .cse10 v_prenex_39))) (let ((.cse11 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_prenex_34) .cse8 v_prenex_35) .cse9 v_prenex_32) .cse10 v_prenex_38) .cse11 v_prenex_41) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5)) (select (store |c_#length| v_prenex_40 v_ArrVal_10082) (select (select (store .cse12 .cse11 v_ArrVal_10080) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))))))))))) (= v_prenex_40 |c_ULTIMATE.start_main_#t~mem36#1.base|))))) is different from false [2024-11-28 03:37:52,203 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:37:52,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579033260] [2024-11-28 03:37:52,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579033260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:37:52,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1423217720] [2024-11-28 03:37:52,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:52,204 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:37:52,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:37:52,205 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:37:52,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5124588a-5ebe-482e-9b5c-bdf3254c8d0c/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process