./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:57:26,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:57:26,363 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-14 03:57:26,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:57:26,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:57:26,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:57:26,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:57:26,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:57:26,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:57:26,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:57:26,428 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:57:26,429 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:57:26,429 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:57:26,429 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:57:26,429 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:57:26,430 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:57:26,430 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:57:26,430 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:57:26,431 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:57:26,431 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:57:26,432 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:57:26,432 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:57:26,432 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:57:26,432 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:57:26,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:57:26,434 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:57:26,434 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:57:26,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:57:26,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:57:26,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:57:26,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:57:26,435 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:57:26,435 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:57:26,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:57:26,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:57:26,435 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:57:26,436 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:57:26,436 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:57:26,436 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:57:26,437 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:57:26,437 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:57:26,437 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:57:26,437 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:57:26,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:57:26,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:57:26,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:57:26,438 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:57:26,438 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:57:26,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:57:26,440 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:57:26,440 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:57:26,440 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:57:26,440 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2024-11-14 03:57:26,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:57:26,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:57:26,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:57:26,998 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:57:26,999 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:57:27,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i Unable to find full path for "g++" [2024-11-14 03:57:29,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:57:30,175 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:57:30,178 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2024-11-14 03:57:30,213 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/data/1c55da8ee/f425f3cbbbe1479a9fa339512720e3a1/FLAG489639123 [2024-11-14 03:57:30,240 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/data/1c55da8ee/f425f3cbbbe1479a9fa339512720e3a1 [2024-11-14 03:57:30,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:57:30,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:57:30,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:57:30,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:57:30,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:57:30,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:57:30" (1/1) ... [2024-11-14 03:57:30,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e81a84f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:30, skipping insertion in model container [2024-11-14 03:57:30,259 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:57:30" (1/1) ... [2024-11-14 03:57:30,349 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:57:31,180 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,260 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,265 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,269 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,279 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,327 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,327 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,331 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,332 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,336 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,339 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,340 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,341 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,347 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,349 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,353 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,354 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,356 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,357 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,368 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:31,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:57:31,421 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) [2024-11-14 03:57:31,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6019eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:31, skipping insertion in model container [2024-11-14 03:57:31,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:57:31,426 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-14 03:57:31,429 INFO L158 Benchmark]: Toolchain (without parser) took 1181.04ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 94.0MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:57:31,429 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 142.6MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:57:31,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1176.77ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 94.0MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 03:57:31,431 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 142.6MB. Free memory is still 80.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1176.77ms. Allocated memory is still 142.6MB. Free memory was 116.4MB in the beginning and 94.0MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: 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_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:57:34,699 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:57:34,895 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-14 03:57:34,922 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:57:34,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:57:34,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:57:34,983 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:57:34,983 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:57:34,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:57:34,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:57:34,985 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:57:34,986 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:57:34,986 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:57:34,986 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:57:34,986 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:57:34,987 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:57:34,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 03:57:34,988 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 03:57:34,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:57:34,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:57:34,989 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:57:34,989 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:57:34,990 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:57:34,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:57:34,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:57:34,990 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 03:57:34,990 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 03:57:34,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:57:34,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:57:34,991 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:57:34,991 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:57:34,992 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:57:34,992 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:57:34,992 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:57:34,992 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:57:34,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:57:34,993 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:57:34,994 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:57:34,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:57:34,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:57:34,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:57:34,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:57:34,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:57:34,995 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:57:34,995 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:57:34,995 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:57:34,995 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:57:34,995 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:57:34,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2024-11-14 03:57:35,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:57:35,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:57:35,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:57:35,416 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:57:35,416 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:57:35,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i Unable to find full path for "g++" [2024-11-14 03:57:37,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:57:38,666 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:57:38,669 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2024-11-14 03:57:38,709 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/data/4440b3bb6/64cd7f991582486a83c4ab72cd967039/FLAGf6a505873 [2024-11-14 03:57:39,095 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/data/4440b3bb6/64cd7f991582486a83c4ab72cd967039 [2024-11-14 03:57:39,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:57:39,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:57:39,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:57:39,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:57:39,117 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:57:39,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:57:39" (1/1) ... [2024-11-14 03:57:39,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2befeb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:39, skipping insertion in model container [2024-11-14 03:57:39,123 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:57:39" (1/1) ... [2024-11-14 03:57:39,207 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:57:40,050 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,124 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,133 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,141 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,160 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,209 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,210 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,214 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,214 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,219 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,221 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,223 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,224 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,231 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,233 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,237 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,239 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,241 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,242 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,248 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:57:40,282 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-14 03:57:40,302 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:57:40,349 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,371 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,374 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,378 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,386 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,446 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,446 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,452 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,453 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,460 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,463 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,464 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,465 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,473 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,478 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,481 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,482 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,484 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,485 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,489 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 03:57:40,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:57:40,498 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:57:40,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:57:40,790 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:57:40,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:40 WrapperNode [2024-11-14 03:57:40,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:57:40,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:57:40,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:57:40,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:57:40,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:40" (1/1) ... [2024-11-14 03:57:40,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:40" (1/1) ... [2024-11-14 03:57:40,920 INFO L138 Inliner]: procedures = 286, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1193 [2024-11-14 03:57:40,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:57:40,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:57:40,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:57:40,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:57:40,932 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:40" (1/1) ... [2024-11-14 03:57:40,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:40" (1/1) ... [2024-11-14 03:57:40,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:40" (1/1) ... [2024-11-14 03:57:40,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:40" (1/1) ... [2024-11-14 03:57:41,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:40" (1/1) ... [2024-11-14 03:57:41,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:40" (1/1) ... [2024-11-14 03:57:41,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:40" (1/1) ... [2024-11-14 03:57:41,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:40" (1/1) ... [2024-11-14 03:57:41,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:57:41,084 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:57:41,084 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:57:41,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:57:41,085 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:40" (1/1) ... [2024-11-14 03:57:41,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:57:41,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:57:41,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:57:41,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:57:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-14 03:57:41,171 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-14 03:57:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 03:57:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 03:57:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:57:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:57:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:57:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 03:57:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:57:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-14 03:57:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-14 03:57:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-14 03:57:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 03:57:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 03:57:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:57:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:57:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-14 03:57:41,175 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-14 03:57:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:57:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-14 03:57:41,175 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-14 03:57:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:57:41,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:57:41,579 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:57:41,582 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:57:49,964 INFO L? ?]: Removed 169 outVars from TransFormulas that were not future-live. [2024-11-14 03:57:49,964 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:57:49,986 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:57:49,987 INFO L316 CfgBuilder]: Removed 72 assume(true) statements. [2024-11-14 03:57:49,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:57:49 BoogieIcfgContainer [2024-11-14 03:57:49,987 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:57:49,992 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:57:49,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:57:50,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:57:50,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:57:39" (1/3) ... [2024-11-14 03:57:50,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24728028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:57:50, skipping insertion in model container [2024-11-14 03:57:50,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:57:40" (2/3) ... [2024-11-14 03:57:50,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24728028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:57:50, skipping insertion in model container [2024-11-14 03:57:50,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:57:49" (3/3) ... [2024-11-14 03:57:50,014 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-2.i [2024-11-14 03:57:50,034 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:57:50,036 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test6-2.i that has 6 procedures, 268 locations, 1 initial locations, 41 loop locations, and 2 error locations. [2024-11-14 03:57:50,129 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:57:50,163 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=FINITE_AUTOMATA, 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;@3941219a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:57:50,163 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:57:50,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 268 states, 241 states have (on average 1.6099585062240664) internal successors, (388), 246 states have internal predecessors, (388), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 03:57:50,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 03:57:50,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:50,186 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:57:50,186 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:57:50,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:50,193 INFO L85 PathProgramCache]: Analyzing trace with hash 408885816, now seen corresponding path program 1 times [2024-11-14 03:57:50,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:57:50,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135456033] [2024-11-14 03:57:50,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:50,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:57:50,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:57:50,217 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:57:50,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 03:57:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:50,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:57:50,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:57:50,619 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:57:50,620 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:57:50,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135456033] [2024-11-14 03:57:50,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135456033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:57:50,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:57:50,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:57:50,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449986272] [2024-11-14 03:57:50,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:57:50,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:57:50,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:57:50,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:57:50,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:57:50,677 INFO L87 Difference]: Start difference. First operand has 268 states, 241 states have (on average 1.6099585062240664) internal successors, (388), 246 states have internal predecessors, (388), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:57:50,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:50,751 INFO L93 Difference]: Finished difference Result 263 states and 341 transitions. [2024-11-14 03:57:50,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:57:50,755 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-14 03:57:50,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:50,773 INFO L225 Difference]: With dead ends: 263 [2024-11-14 03:57:50,774 INFO L226 Difference]: Without dead ends: 261 [2024-11-14 03:57:50,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:57:50,785 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:50,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:57:50,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-14 03:57:50,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2024-11-14 03:57:50,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 236 states have (on average 1.2923728813559323) internal successors, (305), 241 states have internal predecessors, (305), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-14 03:57:50,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 339 transitions. [2024-11-14 03:57:50,872 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 339 transitions. Word has length 10 [2024-11-14 03:57:50,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:50,872 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 339 transitions. [2024-11-14 03:57:50,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:57:50,873 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 339 transitions. [2024-11-14 03:57:50,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 03:57:50,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:50,874 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:57:50,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 03:57:51,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:57:51,079 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:57:51,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:51,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1811216814, now seen corresponding path program 1 times [2024-11-14 03:57:51,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:57:51,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429062034] [2024-11-14 03:57:51,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:51,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:57:51,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:57:51,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:57:51,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 03:57:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:51,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:57:51,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:51,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:57:51,640 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:57:51,640 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:57:51,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429062034] [2024-11-14 03:57:51,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429062034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:57:51,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:57:51,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:57:51,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320744615] [2024-11-14 03:57:51,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:57:51,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:57:51,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:57:51,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:57:51,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:57:51,646 INFO L87 Difference]: Start difference. First operand 261 states and 339 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:57:54,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:57:57,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:57,086 INFO L93 Difference]: Finished difference Result 416 states and 543 transitions. [2024-11-14 03:57:57,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:57:57,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-14 03:57:57,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:57,093 INFO L225 Difference]: With dead ends: 416 [2024-11-14 03:57:57,093 INFO L226 Difference]: Without dead ends: 416 [2024-11-14 03:57:57,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:57:57,095 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 185 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:57,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 968 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 123 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2024-11-14 03:57:57,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-14 03:57:57,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 380. [2024-11-14 03:57:57,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 352 states have (on average 1.2954545454545454) internal successors, (456), 357 states have internal predecessors, (456), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 03:57:57,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 496 transitions. [2024-11-14 03:57:57,134 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 496 transitions. Word has length 12 [2024-11-14 03:57:57,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:57,134 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 496 transitions. [2024-11-14 03:57:57,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:57:57,135 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 496 transitions. [2024-11-14 03:57:57,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 03:57:57,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:57,136 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:57:57,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 03:57:57,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:57:57,337 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:57:57,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:57,338 INFO L85 PathProgramCache]: Analyzing trace with hash -538474584, now seen corresponding path program 1 times [2024-11-14 03:57:57,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:57:57,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865936965] [2024-11-14 03:57:57,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:57,339 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:57:57,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:57:57,344 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:57:57,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 03:57:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:57,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:57:57,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:57,785 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:57:57,786 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:57:57,788 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:57:57,805 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 [2024-11-14 03:57:57,940 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:57:57,940 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 [2024-11-14 03:57:57,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:57:57,969 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:57:57,969 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:57:57,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865936965] [2024-11-14 03:57:57,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865936965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:57:57,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:57:57,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:57:57,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230372362] [2024-11-14 03:57:57,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:57:57,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:57:57,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:57:57,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:57:57,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:57:57,973 INFO L87 Difference]: Start difference. First operand 380 states and 496 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:57:59,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:58:02,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:58:06,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:58:07,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:07,852 INFO L93 Difference]: Finished difference Result 506 states and 668 transitions. [2024-11-14 03:58:07,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:58:07,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-14 03:58:07,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:07,856 INFO L225 Difference]: With dead ends: 506 [2024-11-14 03:58:07,857 INFO L226 Difference]: Without dead ends: 506 [2024-11-14 03:58:07,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:58:07,858 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 184 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:07,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 934 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2024-11-14 03:58:07,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-14 03:58:07,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 379. [2024-11-14 03:58:07,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 351 states have (on average 1.2934472934472934) internal successors, (454), 356 states have internal predecessors, (454), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 03:58:07,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 494 transitions. [2024-11-14 03:58:07,908 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 494 transitions. Word has length 15 [2024-11-14 03:58:07,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:07,909 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 494 transitions. [2024-11-14 03:58:07,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:07,910 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 494 transitions. [2024-11-14 03:58:07,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-14 03:58:07,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:07,912 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:07,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 03:58:08,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:58:08,116 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:58:08,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:08,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1928585326, now seen corresponding path program 1 times [2024-11-14 03:58:08,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:58:08,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781294955] [2024-11-14 03:58:08,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:08,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:58:08,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:58:08,120 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:58:08,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-14 03:58:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:08,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:58:08,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:08,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:58:08,667 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:58:08,667 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:58:08,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781294955] [2024-11-14 03:58:08,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [781294955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:08,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:08,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:58:08,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328671687] [2024-11-14 03:58:08,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:08,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:58:08,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:58:08,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:58:08,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:58:08,669 INFO L87 Difference]: Start difference. First operand 379 states and 494 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:08,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:08,905 INFO L93 Difference]: Finished difference Result 385 states and 484 transitions. [2024-11-14 03:58:08,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:58:08,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-14 03:58:08,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:08,909 INFO L225 Difference]: With dead ends: 385 [2024-11-14 03:58:08,912 INFO L226 Difference]: Without dead ends: 385 [2024-11-14 03:58:08,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:58:08,914 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 30 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:08,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 908 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:58:08,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-14 03:58:08,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2024-11-14 03:58:08,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 357 states have (on average 1.2436974789915967) internal successors, (444), 362 states have internal predecessors, (444), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 03:58:08,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 484 transitions. [2024-11-14 03:58:08,945 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 484 transitions. Word has length 50 [2024-11-14 03:58:08,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:08,946 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 484 transitions. [2024-11-14 03:58:08,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:08,950 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 484 transitions. [2024-11-14 03:58:08,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-14 03:58:08,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:08,951 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:08,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:58:09,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:58:09,152 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:58:09,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:09,153 INFO L85 PathProgramCache]: Analyzing trace with hash 792614278, now seen corresponding path program 1 times [2024-11-14 03:58:09,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:58:09,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074039695] [2024-11-14 03:58:09,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:09,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:58:09,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:58:09,157 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:58:09,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 03:58:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:09,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:58:09,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:09,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:58:09,728 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:58:09,728 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:58:09,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074039695] [2024-11-14 03:58:09,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074039695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:09,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:09,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:58:09,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332600358] [2024-11-14 03:58:09,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:09,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:58:09,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:58:09,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:58:09,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:58:09,733 INFO L87 Difference]: Start difference. First operand 385 states and 484 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:10,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:10,014 INFO L93 Difference]: Finished difference Result 395 states and 494 transitions. [2024-11-14 03:58:10,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:58:10,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-14 03:58:10,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:10,020 INFO L225 Difference]: With dead ends: 395 [2024-11-14 03:58:10,020 INFO L226 Difference]: Without dead ends: 395 [2024-11-14 03:58:10,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:58:10,022 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 9 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:10,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1606 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:58:10,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-14 03:58:10,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2024-11-14 03:58:10,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 364 states have (on average 1.2417582417582418) internal successors, (452), 370 states have internal predecessors, (452), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-14 03:58:10,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 494 transitions. [2024-11-14 03:58:10,050 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 494 transitions. Word has length 50 [2024-11-14 03:58:10,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:10,052 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 494 transitions. [2024-11-14 03:58:10,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:58:10,053 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 494 transitions. [2024-11-14 03:58:10,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 03:58:10,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:10,060 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:10,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-14 03:58:10,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:58:10,261 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:58:10,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:10,262 INFO L85 PathProgramCache]: Analyzing trace with hash 249405952, now seen corresponding path program 1 times [2024-11-14 03:58:10,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:58:10,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265642887] [2024-11-14 03:58:10,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:10,263 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:58:10,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:58:10,265 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:58:10,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-14 03:58:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:11,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:58:11,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:11,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:58:11,450 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:58:11,450 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:58:11,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265642887] [2024-11-14 03:58:11,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265642887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:11,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:11,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:58:11,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913661212] [2024-11-14 03:58:11,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:11,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:58:11,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:58:11,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:58:11,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:58:11,453 INFO L87 Difference]: Start difference. First operand 395 states and 494 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:58:12,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:12,124 INFO L93 Difference]: Finished difference Result 403 states and 504 transitions. [2024-11-14 03:58:12,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:58:12,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2024-11-14 03:58:12,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:12,133 INFO L225 Difference]: With dead ends: 403 [2024-11-14 03:58:12,133 INFO L226 Difference]: Without dead ends: 403 [2024-11-14 03:58:12,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:58:12,136 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 20 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1455 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:12,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1455 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:58:12,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-14 03:58:12,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 399. [2024-11-14 03:58:12,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 366 states have (on average 1.2404371584699454) internal successors, (454), 373 states have internal predecessors, (454), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (21), 19 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-14 03:58:12,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 499 transitions. [2024-11-14 03:58:12,173 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 499 transitions. Word has length 65 [2024-11-14 03:58:12,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:12,174 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 499 transitions. [2024-11-14 03:58:12,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:58:12,175 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 499 transitions. [2024-11-14 03:58:12,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 03:58:12,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:12,181 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:12,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-14 03:58:12,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:58:12,382 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:58:12,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:12,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1382830198, now seen corresponding path program 1 times [2024-11-14 03:58:12,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:58:12,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762269406] [2024-11-14 03:58:12,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:12,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:58:12,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:58:12,386 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:58:12,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-14 03:58:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:12,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:58:12,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:58:13,054 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:58:13,054 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:58:13,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762269406] [2024-11-14 03:58:13,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [762269406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:13,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:13,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:58:13,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459381593] [2024-11-14 03:58:13,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:13,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:58:13,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:58:13,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:58:13,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:58:13,060 INFO L87 Difference]: Start difference. First operand 399 states and 499 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:58:13,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:13,153 INFO L93 Difference]: Finished difference Result 403 states and 504 transitions. [2024-11-14 03:58:13,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:58:13,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 70 [2024-11-14 03:58:13,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:13,160 INFO L225 Difference]: With dead ends: 403 [2024-11-14 03:58:13,160 INFO L226 Difference]: Without dead ends: 403 [2024-11-14 03:58:13,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:58:13,161 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 0 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:13,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 967 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:58:13,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-14 03:58:13,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-14 03:58:13,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 369 states have (on average 1.2411924119241193) internal successors, (458), 377 states have internal predecessors, (458), 24 states have call successors, (24), 7 states have call predecessors, (24), 8 states have return successors, (22), 19 states have call predecessors, (22), 20 states have call successors, (22) [2024-11-14 03:58:13,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 504 transitions. [2024-11-14 03:58:13,184 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 504 transitions. Word has length 70 [2024-11-14 03:58:13,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:13,185 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 504 transitions. [2024-11-14 03:58:13,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 03:58:13,185 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 504 transitions. [2024-11-14 03:58:13,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 03:58:13,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:13,187 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:13,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-14 03:58:13,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:58:13,388 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:58:13,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:13,388 INFO L85 PathProgramCache]: Analyzing trace with hash 994427521, now seen corresponding path program 1 times [2024-11-14 03:58:13,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:58:13,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071688897] [2024-11-14 03:58:13,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:13,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:58:13,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:58:13,392 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:58:13,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-14 03:58:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:14,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:58:14,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:14,268 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:58:14,268 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:14,592 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:58:14,593 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:58:14,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071688897] [2024-11-14 03:58:14,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071688897] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:58:14,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [924713641] [2024-11-14 03:58:14,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:14,593 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:58:14,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:58:14,600 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:58:14,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-14 03:58:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:15,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:58:15,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:16,072 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:58:16,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:16,906 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:58:16,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [924713641] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:58:16,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845838448] [2024-11-14 03:58:16,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:16,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:16,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:58:16,913 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:58:16,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:58:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:17,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:58:17,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 03:58:17,832 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:58:17,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845838448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:17,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-14 03:58:17,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 7, 7] total 18 [2024-11-14 03:58:17,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71152903] [2024-11-14 03:58:17,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:17,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:58:17,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:58:17,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:58:17,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:58:17,837 INFO L87 Difference]: Start difference. First operand 403 states and 504 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:58:18,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:18,336 INFO L93 Difference]: Finished difference Result 1071 states and 1360 transitions. [2024-11-14 03:58:18,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:58:18,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 71 [2024-11-14 03:58:18,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:18,344 INFO L225 Difference]: With dead ends: 1071 [2024-11-14 03:58:18,344 INFO L226 Difference]: Without dead ends: 1071 [2024-11-14 03:58:18,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:58:18,346 INFO L432 NwaCegarLoop]: 714 mSDtfsCounter, 597 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:18,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1679 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:58:18,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-11-14 03:58:18,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 985. [2024-11-14 03:58:18,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 917 states have (on average 1.257360959651036) internal successors, (1153), 931 states have internal predecessors, (1153), 48 states have call successors, (48), 14 states have call predecessors, (48), 18 states have return successors, (50), 39 states have call predecessors, (50), 44 states have call successors, (50) [2024-11-14 03:58:18,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1251 transitions. [2024-11-14 03:58:18,396 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1251 transitions. Word has length 71 [2024-11-14 03:58:18,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:18,397 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 1251 transitions. [2024-11-14 03:58:18,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 03:58:18,397 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1251 transitions. [2024-11-14 03:58:18,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-14 03:58:18,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:18,399 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:18,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-14 03:58:18,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-14 03:58:18,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-14 03:58:19,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:19,001 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:58:19,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:19,002 INFO L85 PathProgramCache]: Analyzing trace with hash -647467510, now seen corresponding path program 1 times [2024-11-14 03:58:19,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:58:19,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1811636435] [2024-11-14 03:58:19,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:19,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:58:19,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:58:19,008 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:58:19,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-14 03:58:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:20,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:58:20,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:20,192 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:58:20,192 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:20,463 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 03:58:20,464 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:58:20,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1811636435] [2024-11-14 03:58:20,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1811636435] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:58:20,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1961232405] [2024-11-14 03:58:20,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:20,471 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:58:20,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:58:20,475 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:58:20,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-14 03:58:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:21,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 03:58:21,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:22,405 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 03:58:22,405 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:23,438 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 03:58:23,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1961232405] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:58:23,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773325200] [2024-11-14 03:58:23,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:23,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:23,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:58:23,442 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:58:23,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 03:58:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:24,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 03:58:24,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:24,710 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:58:24,710 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:25,055 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 03:58:25,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773325200] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:58:25,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:58:25,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 8, 10, 8, 7] total 23 [2024-11-14 03:58:25,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189849426] [2024-11-14 03:58:25,056 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:58:25,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 03:58:25,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:58:25,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 03:58:25,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-14 03:58:25,060 INFO L87 Difference]: Start difference. First operand 985 states and 1251 transitions. Second operand has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 20 states have internal predecessors, (247), 11 states have call successors, (24), 8 states have call predecessors, (24), 11 states have return successors, (22), 9 states have call predecessors, (22), 11 states have call successors, (22) [2024-11-14 03:58:36,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:36,686 INFO L93 Difference]: Finished difference Result 5240 states and 6746 transitions. [2024-11-14 03:58:36,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-11-14 03:58:36,687 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 20 states have internal predecessors, (247), 11 states have call successors, (24), 8 states have call predecessors, (24), 11 states have return successors, (22), 9 states have call predecessors, (22), 11 states have call successors, (22) Word has length 98 [2024-11-14 03:58:36,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:36,714 INFO L225 Difference]: With dead ends: 5240 [2024-11-14 03:58:36,714 INFO L226 Difference]: Without dead ends: 5240 [2024-11-14 03:58:36,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 588 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4106 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=2371, Invalid=8971, Unknown=0, NotChecked=0, Total=11342 [2024-11-14 03:58:36,721 INFO L432 NwaCegarLoop]: 1152 mSDtfsCounter, 8747 mSDsluCounter, 10928 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 947 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8785 SdHoareTripleChecker+Valid, 12080 SdHoareTripleChecker+Invalid, 2433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 947 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:36,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8785 Valid, 12080 Invalid, 2433 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [947 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-14 03:58:36,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5240 states. [2024-11-14 03:58:36,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5240 to 3328. [2024-11-14 03:58:36,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 3127 states have (on average 1.2718260313399425) internal successors, (3977), 3159 states have internal predecessors, (3977), 144 states have call successors, (144), 51 states have call predecessors, (144), 55 states have return successors, (150), 117 states have call predecessors, (150), 140 states have call successors, (150) [2024-11-14 03:58:36,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 4271 transitions. [2024-11-14 03:58:36,906 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 4271 transitions. Word has length 98 [2024-11-14 03:58:36,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:36,907 INFO L471 AbstractCegarLoop]: Abstraction has 3328 states and 4271 transitions. [2024-11-14 03:58:36,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.73913043478261) internal successors, (247), 20 states have internal predecessors, (247), 11 states have call successors, (24), 8 states have call predecessors, (24), 11 states have return successors, (22), 9 states have call predecessors, (22), 11 states have call successors, (22) [2024-11-14 03:58:36,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 4271 transitions. [2024-11-14 03:58:36,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-14 03:58:36,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:36,912 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:36,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-14 03:58:37,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2024-11-14 03:58:37,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 03:58:37,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:37,514 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:58:37,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:37,515 INFO L85 PathProgramCache]: Analyzing trace with hash 590830689, now seen corresponding path program 1 times [2024-11-14 03:58:37,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:58:37,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797453538] [2024-11-14 03:58:37,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:37,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:58:37,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:58:37,517 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:58:37,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-14 03:58:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:38,305 INFO L255 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:58:38,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:58:38,529 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:39,006 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 03:58:39,006 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:58:39,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797453538] [2024-11-14 03:58:39,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797453538] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:58:39,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1017599383] [2024-11-14 03:58:39,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:39,006 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:58:39,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:58:39,008 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:58:39,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-14 03:58:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:40,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:58:40,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:40,361 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:58:40,361 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:40,549 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 03:58:40,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1017599383] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:58:40,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936310965] [2024-11-14 03:58:40,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:40,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:40,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:58:40,554 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:58:40,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-14 03:58:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:41,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:58:41,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:41,283 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:58:41,284 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:58:41,285 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 03:58:41,287 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 [2024-11-14 03:58:41,415 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:58:41,416 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 [2024-11-14 03:58:41,475 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-14 03:58:41,475 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:58:41,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936310965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:41,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-14 03:58:41,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8, 8, 8] total 16 [2024-11-14 03:58:41,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549210574] [2024-11-14 03:58:41,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:41,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:58:41,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:58:41,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:58:41,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:58:41,478 INFO L87 Difference]: Start difference. First operand 3328 states and 4271 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 03:58:44,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:58:45,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:58:48,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:58:50,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:50,326 INFO L93 Difference]: Finished difference Result 4128 states and 5355 transitions. [2024-11-14 03:58:50,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:58:50,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 110 [2024-11-14 03:58:50,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:50,350 INFO L225 Difference]: With dead ends: 4128 [2024-11-14 03:58:50,350 INFO L226 Difference]: Without dead ends: 4128 [2024-11-14 03:58:50,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-14 03:58:50,353 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 141 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:50,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 847 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2024-11-14 03:58:50,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4128 states. [2024-11-14 03:58:50,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4128 to 3346. [2024-11-14 03:58:50,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3346 states, 3145 states have (on average 1.2702702702702702) internal successors, (3995), 3177 states have internal predecessors, (3995), 144 states have call successors, (144), 51 states have call predecessors, (144), 55 states have return successors, (150), 117 states have call predecessors, (150), 140 states have call successors, (150) [2024-11-14 03:58:50,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3346 states to 3346 states and 4289 transitions. [2024-11-14 03:58:50,500 INFO L78 Accepts]: Start accepts. Automaton has 3346 states and 4289 transitions. Word has length 110 [2024-11-14 03:58:50,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:50,501 INFO L471 AbstractCegarLoop]: Abstraction has 3346 states and 4289 transitions. [2024-11-14 03:58:50,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 03:58:50,501 INFO L276 IsEmpty]: Start isEmpty. Operand 3346 states and 4289 transitions. [2024-11-14 03:58:50,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-14 03:58:50,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:50,503 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:50,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-14 03:58:50,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-14 03:58:50,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-14 03:58:51,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:51,105 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:58:51,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:51,107 INFO L85 PathProgramCache]: Analyzing trace with hash 207584723, now seen corresponding path program 1 times [2024-11-14 03:58:51,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:58:51,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467866969] [2024-11-14 03:58:51,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:51,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:58:51,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:58:51,111 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:58:51,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-14 03:58:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:52,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:58:52,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:52,563 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 03:58:52,563 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:53,092 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 03:58:53,092 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:58:53,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467866969] [2024-11-14 03:58:53,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [467866969] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:58:53,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [862776778] [2024-11-14 03:58:53,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:53,093 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:58:53,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:58:53,097 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:58:53,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-14 03:58:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:54,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:58:54,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:55,060 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-14 03:58:55,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:55,296 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 03:58:55,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [862776778] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:58:55,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863532926] [2024-11-14 03:58:55,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:55,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:55,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:58:55,300 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:58:55,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-14 03:58:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:56,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:58:56,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:56,525 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 44 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 03:58:56,525 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:57,010 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 03:58:57,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863532926] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:58:57,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:58:57,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 6, 6] total 20 [2024-11-14 03:58:57,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184583626] [2024-11-14 03:58:57,011 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:58:57,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 03:58:57,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:58:57,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 03:58:57,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2024-11-14 03:58:57,014 INFO L87 Difference]: Start difference. First operand 3346 states and 4289 transitions. Second operand has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-14 03:58:59,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:59,330 INFO L93 Difference]: Finished difference Result 3535 states and 4541 transitions. [2024-11-14 03:58:59,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-14 03:58:59,332 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2024-11-14 03:58:59,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:59,348 INFO L225 Difference]: With dead ends: 3535 [2024-11-14 03:58:59,348 INFO L226 Difference]: Without dead ends: 3472 [2024-11-14 03:58:59,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=403, Invalid=1079, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 03:58:59,350 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 22 mSDsluCounter, 2560 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:59,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2884 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 03:58:59,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3472 states. [2024-11-14 03:58:59,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3472 to 3430. [2024-11-14 03:58:59,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3430 states, 3229 states have (on average 1.2719108082997832) internal successors, (4107), 3261 states have internal predecessors, (4107), 144 states have call successors, (144), 51 states have call predecessors, (144), 55 states have return successors, (150), 117 states have call predecessors, (150), 140 states have call successors, (150) [2024-11-14 03:58:59,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 4401 transitions. [2024-11-14 03:58:59,521 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 4401 transitions. Word has length 117 [2024-11-14 03:58:59,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:59,521 INFO L471 AbstractCegarLoop]: Abstraction has 3430 states and 4401 transitions. [2024-11-14 03:58:59,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-14 03:58:59,522 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 4401 transitions. [2024-11-14 03:58:59,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-14 03:58:59,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:59,524 INFO L215 NwaCegarLoop]: trace histogram [18, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:59,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-14 03:58:59,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-11-14 03:58:59,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-14 03:59:00,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:59:00,126 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 03:59:00,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:00,128 INFO L85 PathProgramCache]: Analyzing trace with hash 964312147, now seen corresponding path program 2 times [2024-11-14 03:59:00,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:59:00,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975238194] [2024-11-14 03:59:00,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:59:00,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:59:00,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:59:00,132 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:59:00,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-14 03:59:02,980 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:59:02,980 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:59:03,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:59:03,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:59:03,673 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 128 proven. 55 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-14 03:59:03,673 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:59:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 03:59:05,689 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:59:05,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975238194] [2024-11-14 03:59:05,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975238194] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:59:05,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [546905606] [2024-11-14 03:59:05,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:59:05,689 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:59:05,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:59:05,693 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:59:05,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-14 04:00:13,842 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:00:13,842 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:00:13,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 04:00:13,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:14,090 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 128 proven. 55 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-14 04:00:14,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:00:14,433 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 04:00:14,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [546905606] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:00:14,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231112803] [2024-11-14 04:00:14,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:00:14,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:00:14,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:00:14,437 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:00:14,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 04:04:32,470 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:04:32,470 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:04:32,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 04:04:32,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:04:32,672 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 140 proven. 36 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-14 04:04:32,672 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:04:33,791 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 102 proven. 48 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-14 04:04:33,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231112803] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:04:33,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:04:33,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 12, 12] total 38 [2024-11-14 04:04:33,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11256627] [2024-11-14 04:04:33,792 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:04:33,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-14 04:04:33,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:04:33,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-14 04:04:33,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 04:04:33,794 INFO L87 Difference]: Start difference. First operand 3430 states and 4401 transitions. Second operand has 38 states, 38 states have (on average 3.6052631578947367) internal successors, (137), 38 states have internal predecessors, (137), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-14 04:04:41,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:04:41,089 INFO L93 Difference]: Finished difference Result 3703 states and 4828 transitions. [2024-11-14 04:04:41,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-14 04:04:41,090 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.6052631578947367) internal successors, (137), 38 states have internal predecessors, (137), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2024-11-14 04:04:41,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:04:41,101 INFO L225 Difference]: With dead ends: 3703 [2024-11-14 04:04:41,101 INFO L226 Difference]: Without dead ends: 3661 [2024-11-14 04:04:41,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1213 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=1675, Invalid=4805, Unknown=0, NotChecked=0, Total=6480 [2024-11-14 04:04:41,106 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 46 mSDsluCounter, 6705 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 7029 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:04:41,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 7029 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 04:04:41,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3661 states. [2024-11-14 04:04:41,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3661 to 3598. [2024-11-14 04:04:41,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3598 states, 3397 states have (on average 1.2831910509272888) internal successors, (4359), 3429 states have internal predecessors, (4359), 144 states have call successors, (144), 51 states have call predecessors, (144), 55 states have return successors, (150), 117 states have call predecessors, (150), 140 states have call successors, (150) [2024-11-14 04:04:41,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3598 states to 3598 states and 4653 transitions. [2024-11-14 04:04:41,174 INFO L78 Accepts]: Start accepts. Automaton has 3598 states and 4653 transitions. Word has length 129 [2024-11-14 04:04:41,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:04:41,175 INFO L471 AbstractCegarLoop]: Abstraction has 3598 states and 4653 transitions. [2024-11-14 04:04:41,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.6052631578947367) internal successors, (137), 38 states have internal predecessors, (137), 2 states have call successors, (15), 2 states have call predecessors, (15), 6 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-14 04:04:41,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 4653 transitions. [2024-11-14 04:04:41,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-14 04:04:41,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:04:41,177 INFO L215 NwaCegarLoop]: trace histogram [42, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:04:41,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-14 04:04:41,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 04:04:41,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2024-11-14 04:04:41,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 04:04:41,778 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 04:04:41,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:04:41,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1711073619, now seen corresponding path program 3 times [2024-11-14 04:04:41,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:04:41,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808307795] [2024-11-14 04:04:41,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:04:41,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:04:41,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:04:41,781 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 04:04:41,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-14 04:04:58,609 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-14 04:04:58,609 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:04:58,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 1145 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 04:04:58,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:04:59,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 548 proven. 210 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-14 04:04:59,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:05:03,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1017 backedges. 486 proven. 234 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-11-14 04:05:03,372 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:05:03,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808307795] [2024-11-14 04:05:03,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1808307795] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:05:03,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [651502051] [2024-11-14 04:05:03,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 04:05:03,373 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:05:03,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:05:03,379 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:05:03,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43d5e1a2-947e-4dc2-9268-dad912dd5b09/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process