./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:36:13,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:36:13,513 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-13 23:36:13,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:36:13,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:36:13,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:36:13,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:36:13,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:36:13,552 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:36:13,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:36:13,553 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:36:13,553 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:36:13,553 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:36:13,553 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:36:13,554 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:36:13,554 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:36:13,554 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:36:13,554 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:36:13,554 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:36:13,555 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:36:13,555 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:36:13,555 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:36:13,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:36:13,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:36:13,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:36:13,556 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:36:13,556 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:36:13,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:36:13,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:36:13,557 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 23:36:13,557 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 23:36:13,557 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 23:36:13,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:36:13,558 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:36:13,558 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:36:13,558 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:36:13,558 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:36:13,558 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:36:13,558 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:36:13,558 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:36:13,559 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:36:13,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:36:13,559 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:36:13,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:36:13,559 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:36:13,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:36:13,560 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:36:13,560 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:36:13,560 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:36:13,560 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_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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 -> 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 [2024-11-13 23:36:13,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:36:14,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:36:14,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:36:14,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:36:14,019 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:36:14,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i Unable to find full path for "g++" [2024-11-13 23:36:16,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:36:16,939 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:36:16,940 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2024-11-13 23:36:16,961 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/data/d9f775f81/8f677875194849889d1ac616801f7f99/FLAG6e31069f2 [2024-11-13 23:36:16,979 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/data/d9f775f81/8f677875194849889d1ac616801f7f99 [2024-11-13 23:36:16,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:36:16,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:36:16,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:36:16,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:36:16,991 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:36:16,992 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:36:16" (1/1) ... [2024-11-13 23:36:16,993 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40d02dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:16, skipping insertion in model container [2024-11-13 23:36:16,993 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:36:16" (1/1) ... [2024-11-13 23:36:17,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:36:17,630 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,685 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,690 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,699 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,710 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,756 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,759 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,763 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,771 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,811 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,811 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,815 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,815 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,818 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,822 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,824 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,825 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,826 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,833 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,834 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,836 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,837 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,843 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:17,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:36:17,877 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-13 23:36:17,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@57e1174b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:17, skipping insertion in model container [2024-11-13 23:36:17,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:36:17,879 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-13 23:36:17,883 INFO L158 Benchmark]: Toolchain (without parser) took 898.24ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 65.9MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 23:36:17,883 INFO L158 Benchmark]: CDTParser took 1.71ms. Allocated memory is still 83.9MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:36:17,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 894.05ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 65.9MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 23:36:17,886 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.71ms. Allocated memory is still 83.9MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 894.05ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 65.9MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 760]: 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_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:36:21,064 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:36:21,237 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2024-11-13 23:36:21,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:36:21,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:36:21,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:36:21,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:36:21,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:36:21,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:36:21,277 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:36:21,277 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:36:21,277 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:36:21,277 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:36:21,277 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:36:21,278 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:36:21,278 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:36:21,278 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:36:21,278 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:36:21,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:36:21,279 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:36:21,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:36:21,279 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:36:21,279 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:36:21,279 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 23:36:21,279 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 23:36:21,279 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 23:36:21,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:36:21,280 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:36:21,280 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:36:21,280 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:36:21,280 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:36:21,280 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:36:21,280 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:36:21,281 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:36:21,281 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:36:21,281 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 23:36:21,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:36:21,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:36:21,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:36:21,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:36:21,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:36:21,282 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:36:21,282 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:36:21,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:36:21,282 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:36:21,282 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_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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 -> 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 [2024-11-13 23:36:21,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:36:21,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:36:21,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:36:21,729 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:36:21,730 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:36:21,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i Unable to find full path for "g++" [2024-11-13 23:36:24,282 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:36:24,840 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:36:24,841 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2024-11-13 23:36:24,875 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/data/211bf52a2/e65fef074b894a7fabcad18626a9ca88/FLAG3ee297aaf [2024-11-13 23:36:25,381 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/data/211bf52a2/e65fef074b894a7fabcad18626a9ca88 [2024-11-13 23:36:25,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:36:25,387 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:36:25,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:36:25,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:36:25,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:36:25,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:36:25" (1/1) ... [2024-11-13 23:36:25,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cfa4a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:25, skipping insertion in model container [2024-11-13 23:36:25,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:36:25" (1/1) ... [2024-11-13 23:36:25,465 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:36:26,004 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,080 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,092 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,099 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,110 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,160 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,164 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,169 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,183 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,248 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,250 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,258 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,259 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,262 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,266 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,268 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,269 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,270 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,278 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,279 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,281 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,282 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,288 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:36:26,329 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-13 23:36:26,357 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:36:26,440 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,465 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,468 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,471 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,478 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,511 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,514 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,517 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,523 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,592 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,592 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,595 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,596 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,598 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,601 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,602 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,603 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,604 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,608 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,609 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,610 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,611 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,615 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 23:36:26,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:36:26,625 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:36:26,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:36:26,835 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:36:26,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:26 WrapperNode [2024-11-13 23:36:26,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:36:26,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:36:26,839 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:36:26,839 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:36:26,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:26" (1/1) ... [2024-11-13 23:36:26,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:26" (1/1) ... [2024-11-13 23:36:27,023 INFO L138 Inliner]: procedures = 180, calls = 474, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1704 [2024-11-13 23:36:27,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:36:27,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:36:27,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:36:27,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:36:27,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:26" (1/1) ... [2024-11-13 23:36:27,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:26" (1/1) ... [2024-11-13 23:36:27,078 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:26" (1/1) ... [2024-11-13 23:36:27,078 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:26" (1/1) ... [2024-11-13 23:36:27,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:26" (1/1) ... [2024-11-13 23:36:27,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:26" (1/1) ... [2024-11-13 23:36:27,269 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:26" (1/1) ... [2024-11-13 23:36:27,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:26" (1/1) ... [2024-11-13 23:36:27,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:36:27,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:36:27,315 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:36:27,315 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:36:27,317 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:26" (1/1) ... [2024-11-13 23:36:27,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:36:27,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:36:27,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:36:27,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:36:27,410 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-13 23:36:27,410 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-13 23:36:27,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-13 23:36:27,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-13 23:36:27,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 23:36:27,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 23:36:27,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-13 23:36:27,412 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-13 23:36:27,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 23:36:27,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:36:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 23:36:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 23:36:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 23:36:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 23:36:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-13 23:36:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:36:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:36:27,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:36:27,806 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:36:27,808 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:36:27,839 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-13 23:36:37,961 INFO L? ?]: Removed 1900 outVars from TransFormulas that were not future-live. [2024-11-13 23:36:37,962 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:36:38,056 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:36:38,056 INFO L316 CfgBuilder]: Removed 100 assume(true) statements. [2024-11-13 23:36:38,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:36:38 BoogieIcfgContainer [2024-11-13 23:36:38,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:36:38,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:36:38,064 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:36:38,078 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:36:38,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:36:25" (1/3) ... [2024-11-13 23:36:38,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc8c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:36:38, skipping insertion in model container [2024-11-13 23:36:38,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:36:26" (2/3) ... [2024-11-13 23:36:38,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc8c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:36:38, skipping insertion in model container [2024-11-13 23:36:38,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:36:38" (3/3) ... [2024-11-13 23:36:38,082 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-3.i [2024-11-13 23:36:38,103 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:36:38,105 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test5-3.i that has 4 procedures, 1823 locations, 1 initial locations, 56 loop locations, and 915 error locations. [2024-11-13 23:36:38,213 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:36:38,234 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;@53522381, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:36:38,235 INFO L334 AbstractCegarLoop]: Starting to check reachability of 915 error locations. [2024-11-13 23:36:38,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 1823 states, 897 states have (on average 2.238573021181717) internal successors, (2008), 1813 states have internal predecessors, (2008), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 23:36:38,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 23:36:38,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:36:38,259 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 23:36:38,260 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:36:38,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:36:38,269 INFO L85 PathProgramCache]: Analyzing trace with hash 45876316, now seen corresponding path program 1 times [2024-11-13 23:36:38,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:36:38,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681130877] [2024-11-13 23:36:38,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:36:38,290 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 [2024-11-13 23:36:38,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:36:38,296 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:36:38,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:36:38,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:36:38,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:36:38,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-13 23:36:38,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:36:38,724 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:36:38,727 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:36:38,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681130877] [2024-11-13 23:36:38,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681130877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:36:38,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:36:38,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:36:38,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265645540] [2024-11-13 23:36:38,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:36:38,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:36:38,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:36:38,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:36:38,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:36:38,774 INFO L87 Difference]: Start difference. First operand has 1823 states, 897 states have (on average 2.238573021181717) internal successors, (2008), 1813 states have internal predecessors, (2008), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:36:44,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:36:44,126 INFO L93 Difference]: Finished difference Result 1939 states and 2072 transitions. [2024-11-13 23:36:44,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:36:44,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-13 23:36:44,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:36:44,160 INFO L225 Difference]: With dead ends: 1939 [2024-11-13 23:36:44,161 INFO L226 Difference]: Without dead ends: 1937 [2024-11-13 23:36:44,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:36:44,171 INFO L432 NwaCegarLoop]: 1371 mSDtfsCounter, 1264 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:36:44,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 1746 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-13 23:36:44,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2024-11-13 23:36:44,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1709. [2024-11-13 23:36:44,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 887 states have (on average 2.013528748590755) internal successors, (1786), 1699 states have internal predecessors, (1786), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 23:36:44,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 1810 transitions. [2024-11-13 23:36:44,358 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 1810 transitions. Word has length 5 [2024-11-13 23:36:44,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:36:44,358 INFO L471 AbstractCegarLoop]: Abstraction has 1709 states and 1810 transitions. [2024-11-13 23:36:44,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:36:44,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 1810 transitions. [2024-11-13 23:36:44,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 23:36:44,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:36:44,360 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 23:36:44,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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)] Forceful destruction successful, exit code 0 [2024-11-13 23:36:44,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:44,563 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:36:44,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:36:44,564 INFO L85 PathProgramCache]: Analyzing trace with hash 45876317, now seen corresponding path program 1 times [2024-11-13 23:36:44,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:36:44,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93003907] [2024-11-13 23:36:44,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:36:44,565 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 [2024-11-13 23:36:44,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:36:44,569 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:36:44,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:36:44,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:36:44,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:36:44,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-13 23:36:44,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:36:44,867 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:36:44,867 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:36:44,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93003907] [2024-11-13 23:36:44,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [93003907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:36:44,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:36:44,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:36:44,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915650609] [2024-11-13 23:36:44,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:36:44,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:36:44,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:36:44,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:36:44,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:36:44,871 INFO L87 Difference]: Start difference. First operand 1709 states and 1810 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:36:51,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:36:51,944 INFO L93 Difference]: Finished difference Result 2255 states and 2407 transitions. [2024-11-13 23:36:51,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:36:51,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-13 23:36:51,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:36:51,957 INFO L225 Difference]: With dead ends: 2255 [2024-11-13 23:36:51,958 INFO L226 Difference]: Without dead ends: 2255 [2024-11-13 23:36:51,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:36:51,960 INFO L432 NwaCegarLoop]: 1729 mSDtfsCounter, 768 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:36:51,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 2536 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-11-13 23:36:51,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2255 states. [2024-11-13 23:36:52,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2255 to 1876. [2024-11-13 23:36:52,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1876 states, 1064 states have (on average 1.9793233082706767) internal successors, (2106), 1866 states have internal predecessors, (2106), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 23:36:52,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1876 states to 1876 states and 2130 transitions. [2024-11-13 23:36:52,033 INFO L78 Accepts]: Start accepts. Automaton has 1876 states and 2130 transitions. Word has length 5 [2024-11-13 23:36:52,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:36:52,034 INFO L471 AbstractCegarLoop]: Abstraction has 1876 states and 2130 transitions. [2024-11-13 23:36:52,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:36:52,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states and 2130 transitions. [2024-11-13 23:36:52,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 23:36:52,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:36:52,035 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 23:36:52,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:52,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:52,236 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:36:52,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:36:52,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1423801463, now seen corresponding path program 1 times [2024-11-13 23:36:52,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:36:52,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127719576] [2024-11-13 23:36:52,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:36:52,238 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 [2024-11-13 23:36:52,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:36:52,243 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:36:52,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:36:52,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 23:36:52,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:36:52,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:36:52,478 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:36:52,478 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:36:52,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127719576] [2024-11-13 23:36:52,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127719576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:36:52,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:36:52,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:36:52,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27236286] [2024-11-13 23:36:52,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:36:52,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:36:52,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:36:52,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:36:52,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:36:52,482 INFO L87 Difference]: Start difference. First operand 1876 states and 2130 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:36:52,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:36:52,712 INFO L93 Difference]: Finished difference Result 3353 states and 3842 transitions. [2024-11-13 23:36:52,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:36:52,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-13 23:36:52,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:36:52,733 INFO L225 Difference]: With dead ends: 3353 [2024-11-13 23:36:52,733 INFO L226 Difference]: Without dead ends: 3353 [2024-11-13 23:36:52,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:36:52,736 INFO L432 NwaCegarLoop]: 1793 mSDtfsCounter, 1357 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 3582 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:36:52,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1368 Valid, 3582 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:36:52,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3353 states. [2024-11-13 23:36:52,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3353 to 1878. [2024-11-13 23:36:52,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1878 states, 1066 states have (on average 1.977485928705441) internal successors, (2108), 1868 states have internal predecessors, (2108), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 23:36:52,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2132 transitions. [2024-11-13 23:36:52,826 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2132 transitions. Word has length 6 [2024-11-13 23:36:52,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:36:52,826 INFO L471 AbstractCegarLoop]: Abstraction has 1878 states and 2132 transitions. [2024-11-13 23:36:52,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:36:52,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2132 transitions. [2024-11-13 23:36:52,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 23:36:52,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:36:52,828 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:36:52,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:53,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:53,031 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:36:53,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:36:53,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1344610682, now seen corresponding path program 1 times [2024-11-13 23:36:53,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:36:53,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459721040] [2024-11-13 23:36:53,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:36:53,035 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 [2024-11-13 23:36:53,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:36:53,039 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:36:53,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:36:53,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 23:36:53,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:36:53,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:36:53,348 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:36:53,349 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:36:53,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459721040] [2024-11-13 23:36:53,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459721040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:36:53,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:36:53,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:36:53,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884677079] [2024-11-13 23:36:53,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:36:53,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:36:53,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:36:53,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:36:53,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:36:53,354 INFO L87 Difference]: Start difference. First operand 1878 states and 2132 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:36:53,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:36:53,447 INFO L93 Difference]: Finished difference Result 1836 states and 2089 transitions. [2024-11-13 23:36:53,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:36:53,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-13 23:36:53,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:36:53,462 INFO L225 Difference]: With dead ends: 1836 [2024-11-13 23:36:53,464 INFO L226 Difference]: Without dead ends: 1836 [2024-11-13 23:36:53,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:36:53,466 INFO L432 NwaCegarLoop]: 1745 mSDtfsCounter, 71 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 3427 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:36:53,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 3427 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:36:53,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2024-11-13 23:36:53,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1836. [2024-11-13 23:36:53,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1836 states, 1048 states have (on average 1.9704198473282444) internal successors, (2065), 1826 states have internal predecessors, (2065), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 23:36:53,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2089 transitions. [2024-11-13 23:36:53,573 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2089 transitions. Word has length 11 [2024-11-13 23:36:53,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:36:53,574 INFO L471 AbstractCegarLoop]: Abstraction has 1836 states and 2089 transitions. [2024-11-13 23:36:53,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:36:53,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2089 transitions. [2024-11-13 23:36:53,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 23:36:53,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:36:53,576 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:36:53,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:53,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:53,777 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:36:53,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:36:53,778 INFO L85 PathProgramCache]: Analyzing trace with hash 614285791, now seen corresponding path program 1 times [2024-11-13 23:36:53,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:36:53,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975319083] [2024-11-13 23:36:53,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:36:53,780 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 [2024-11-13 23:36:53,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:36:53,783 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:36:53,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:36:54,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:36:54,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:36:54,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:36:54,126 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:36:54,126 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:36:54,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975319083] [2024-11-13 23:36:54,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975319083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:36:54,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:36:54,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:36:54,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548451916] [2024-11-13 23:36:54,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:36:54,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:36:54,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:36:54,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:36:54,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:36:54,128 INFO L87 Difference]: Start difference. First operand 1836 states and 2089 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:36:54,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:36:54,314 INFO L93 Difference]: Finished difference Result 1814 states and 2060 transitions. [2024-11-13 23:36:54,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:36:54,315 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-13 23:36:54,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:36:54,324 INFO L225 Difference]: With dead ends: 1814 [2024-11-13 23:36:54,324 INFO L226 Difference]: Without dead ends: 1814 [2024-11-13 23:36:54,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:36:54,325 INFO L432 NwaCegarLoop]: 1700 mSDtfsCounter, 48 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 5074 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:36:54,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 5074 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:36:54,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2024-11-13 23:36:54,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1814. [2024-11-13 23:36:54,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1040 states have (on average 1.9576923076923076) internal successors, (2036), 1804 states have internal predecessors, (2036), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 23:36:54,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 2060 transitions. [2024-11-13 23:36:54,381 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 2060 transitions. Word has length 13 [2024-11-13 23:36:54,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:36:54,381 INFO L471 AbstractCegarLoop]: Abstraction has 1814 states and 2060 transitions. [2024-11-13 23:36:54,381 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:36:54,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 2060 transitions. [2024-11-13 23:36:54,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 23:36:54,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:36:54,384 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] [2024-11-13 23:36:54,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:54,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:54,585 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:36:54,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:36:54,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1039411379, now seen corresponding path program 1 times [2024-11-13 23:36:54,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:36:54,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802872684] [2024-11-13 23:36:54,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:36:54,587 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 [2024-11-13 23:36:54,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:36:54,590 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:36:54,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:36:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:36:54,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:36:54,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:36:54,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-13 23:36:55,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:36:55,075 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:36:55,075 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:36:55,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802872684] [2024-11-13 23:36:55,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802872684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:36:55,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:36:55,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:36:55,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001447987] [2024-11-13 23:36:55,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:36:55,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:36:55,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:36:55,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:36:55,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:36:55,078 INFO L87 Difference]: Start difference. First operand 1814 states and 2060 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:37:01,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:37:01,833 INFO L93 Difference]: Finished difference Result 1814 states and 2060 transitions. [2024-11-13 23:37:01,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:37:01,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-13 23:37:01,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:37:01,842 INFO L225 Difference]: With dead ends: 1814 [2024-11-13 23:37:01,843 INFO L226 Difference]: Without dead ends: 1814 [2024-11-13 23:37:01,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:37:01,846 INFO L432 NwaCegarLoop]: 1067 mSDtfsCounter, 1201 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 2078 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:37:01,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 2078 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1841 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-13 23:37:01,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2024-11-13 23:37:01,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1810. [2024-11-13 23:37:01,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1810 states, 1040 states have (on average 1.9538461538461538) internal successors, (2032), 1800 states have internal predecessors, (2032), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 23:37:01,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1810 states to 1810 states and 2056 transitions. [2024-11-13 23:37:01,926 INFO L78 Accepts]: Start accepts. Automaton has 1810 states and 2056 transitions. Word has length 27 [2024-11-13 23:37:01,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:37:01,927 INFO L471 AbstractCegarLoop]: Abstraction has 1810 states and 2056 transitions. [2024-11-13 23:37:01,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:37:01,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1810 states and 2056 transitions. [2024-11-13 23:37:01,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 23:37:01,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:37:01,929 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] [2024-11-13 23:37:01,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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)] Ended with exit code 0 [2024-11-13 23:37:02,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:02,130 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:37:02,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:37:02,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1039411378, now seen corresponding path program 1 times [2024-11-13 23:37:02,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:37:02,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756962903] [2024-11-13 23:37:02,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:37:02,133 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 [2024-11-13 23:37:02,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:37:02,136 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:37:02,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:37:02,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:37:02,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:02,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-13 23:37:02,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:02,777 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:37:02,777 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:37:02,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [756962903] [2024-11-13 23:37:02,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [756962903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:37:02,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:37:02,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:37:02,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033330196] [2024-11-13 23:37:02,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:37:02,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:37:02,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:37:02,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:37:02,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:37:02,780 INFO L87 Difference]: Start difference. First operand 1810 states and 2056 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:37:11,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:37:11,390 INFO L93 Difference]: Finished difference Result 2190 states and 2334 transitions. [2024-11-13 23:37:11,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:37:11,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-13 23:37:11,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:37:11,399 INFO L225 Difference]: With dead ends: 2190 [2024-11-13 23:37:11,400 INFO L226 Difference]: Without dead ends: 2190 [2024-11-13 23:37:11,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:37:11,402 INFO L432 NwaCegarLoop]: 1429 mSDtfsCounter, 701 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 1952 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 3065 SdHoareTripleChecker+Invalid, 1955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:37:11,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 3065 Invalid, 1955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1952 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2024-11-13 23:37:11,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2024-11-13 23:37:11,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 1806. [2024-11-13 23:37:11,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1806 states, 1040 states have (on average 1.95) internal successors, (2028), 1796 states have internal predecessors, (2028), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 23:37:11,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1806 states to 1806 states and 2052 transitions. [2024-11-13 23:37:11,472 INFO L78 Accepts]: Start accepts. Automaton has 1806 states and 2052 transitions. Word has length 27 [2024-11-13 23:37:11,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:37:11,472 INFO L471 AbstractCegarLoop]: Abstraction has 1806 states and 2052 transitions. [2024-11-13 23:37:11,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:37:11,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1806 states and 2052 transitions. [2024-11-13 23:37:11,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-13 23:37:11,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:37:11,474 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] [2024-11-13 23:37:11,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:11,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:11,679 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:37:11,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:37:11,680 INFO L85 PathProgramCache]: Analyzing trace with hash -2008255067, now seen corresponding path program 1 times [2024-11-13 23:37:11,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:37:11,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932076351] [2024-11-13 23:37:11,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:37:11,681 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 [2024-11-13 23:37:11,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:37:11,686 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:37:11,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:37:12,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:37:12,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:12,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:12,185 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:37:12,185 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:37:12,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932076351] [2024-11-13 23:37:12,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932076351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:37:12,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:37:12,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:37:12,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895296602] [2024-11-13 23:37:12,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:37:12,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:37:12,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:37:12,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:37:12,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:37:12,188 INFO L87 Difference]: Start difference. First operand 1806 states and 2052 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:37:12,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:37:12,325 INFO L93 Difference]: Finished difference Result 1800 states and 2042 transitions. [2024-11-13 23:37:12,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:37:12,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-13 23:37:12,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:37:12,334 INFO L225 Difference]: With dead ends: 1800 [2024-11-13 23:37:12,335 INFO L226 Difference]: Without dead ends: 1800 [2024-11-13 23:37:12,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:37:12,336 INFO L432 NwaCegarLoop]: 1694 mSDtfsCounter, 21 mSDsluCounter, 3357 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 5051 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:37:12,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 5051 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:37:12,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2024-11-13 23:37:12,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1800. [2024-11-13 23:37:12,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1034 states have (on average 1.9516441005802707) internal successors, (2018), 1790 states have internal predecessors, (2018), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 23:37:12,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2042 transitions. [2024-11-13 23:37:12,382 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2042 transitions. Word has length 43 [2024-11-13 23:37:12,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:37:12,382 INFO L471 AbstractCegarLoop]: Abstraction has 1800 states and 2042 transitions. [2024-11-13 23:37:12,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:37:12,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2042 transitions. [2024-11-13 23:37:12,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 23:37:12,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:37:12,384 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, 1] [2024-11-13 23:37:12,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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)] Forceful destruction successful, exit code 0 [2024-11-13 23:37:12,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:12,589 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:37:12,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:37:12,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1415898865, now seen corresponding path program 1 times [2024-11-13 23:37:12,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:37:12,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346242382] [2024-11-13 23:37:12,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:37:12,591 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 [2024-11-13 23:37:12,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:37:12,594 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:37:12,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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)] Waiting until timeout for monitored process [2024-11-13 23:37:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:37:13,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:37:13,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:13,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:13,555 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:37:13,555 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:37:13,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346242382] [2024-11-13 23:37:13,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346242382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:37:13,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:37:13,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:37:13,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18980378] [2024-11-13 23:37:13,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:37:13,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:37:13,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:37:13,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:37:13,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:37:13,558 INFO L87 Difference]: Start difference. First operand 1800 states and 2042 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:37:13,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:37:13,987 INFO L93 Difference]: Finished difference Result 2197 states and 2476 transitions. [2024-11-13 23:37:13,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:37:13,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-13 23:37:13,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:37:13,997 INFO L225 Difference]: With dead ends: 2197 [2024-11-13 23:37:13,997 INFO L226 Difference]: Without dead ends: 2197 [2024-11-13 23:37:13,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:37:13,999 INFO L432 NwaCegarLoop]: 1780 mSDtfsCounter, 365 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:37:13,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 3423 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 23:37:14,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2024-11-13 23:37:14,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 1847. [2024-11-13 23:37:14,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1847 states, 1081 states have (on average 1.9102682701202591) internal successors, (2065), 1837 states have internal predecessors, (2065), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 23:37:14,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2089 transitions. [2024-11-13 23:37:14,048 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2089 transitions. Word has length 51 [2024-11-13 23:37:14,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:37:14,049 INFO L471 AbstractCegarLoop]: Abstraction has 1847 states and 2089 transitions. [2024-11-13 23:37:14,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:37:14,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2089 transitions. [2024-11-13 23:37:14,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 23:37:14,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:37:14,054 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, 1, 1, 1, 1] [2024-11-13 23:37:14,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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)] Ended with exit code 0 [2024-11-13 23:37:14,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:14,259 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:37:14,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:37:14,260 INFO L85 PathProgramCache]: Analyzing trace with hash 61796394, now seen corresponding path program 1 times [2024-11-13 23:37:14,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:37:14,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064115516] [2024-11-13 23:37:14,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:37:14,262 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 [2024-11-13 23:37:14,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:37:14,265 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:37:14,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 (11)] Waiting until timeout for monitored process [2024-11-13 23:37:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:37:14,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 23:37:14,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:14,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-13 23:37:14,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-13 23:37:15,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 23:37:15,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-13 23:37:15,906 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 23:37:15,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 23:37:15,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:15,933 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:37:15,933 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:37:15,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064115516] [2024-11-13 23:37:15,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064115516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:37:15,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:37:15,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:37:15,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261194045] [2024-11-13 23:37:15,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:37:15,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:37:15,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:37:15,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:37:15,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:37:15,936 INFO L87 Difference]: Start difference. First operand 1847 states and 2089 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:37:21,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:37:21,857 INFO L93 Difference]: Finished difference Result 1763 states and 2005 transitions. [2024-11-13 23:37:21,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:37:21,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-13 23:37:21,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:37:21,862 INFO L225 Difference]: With dead ends: 1763 [2024-11-13 23:37:21,862 INFO L226 Difference]: Without dead ends: 1763 [2024-11-13 23:37:21,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:37:21,863 INFO L432 NwaCegarLoop]: 825 mSDtfsCounter, 1128 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:37:21,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 1149 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-13 23:37:21,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2024-11-13 23:37:21,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1586. [2024-11-13 23:37:21,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 904 states have (on average 1.8263274336283186) internal successors, (1651), 1576 states have internal predecessors, (1651), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 23:37:21,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 1675 transitions. [2024-11-13 23:37:21,902 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 1675 transitions. Word has length 54 [2024-11-13 23:37:21,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:37:21,902 INFO L471 AbstractCegarLoop]: Abstraction has 1586 states and 1675 transitions. [2024-11-13 23:37:21,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:37:21,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 1675 transitions. [2024-11-13 23:37:21,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-13 23:37:21,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:37:21,904 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:37:21,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 (11)] Ended with exit code 0 [2024-11-13 23:37:22,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:22,105 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:37:22,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:37:22,105 INFO L85 PathProgramCache]: Analyzing trace with hash -119945916, now seen corresponding path program 1 times [2024-11-13 23:37:22,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:37:22,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863084209] [2024-11-13 23:37:22,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:37:22,107 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 [2024-11-13 23:37:22,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:37:22,110 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:37:22,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:37:22,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 23:37:22,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:22,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-13 23:37:22,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 23:37:22,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-13 23:37:22,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:22,705 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:37:22,705 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:37:22,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863084209] [2024-11-13 23:37:22,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863084209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:37:22,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:37:22,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:37:22,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790869059] [2024-11-13 23:37:22,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:37:22,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:37:22,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:37:22,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:37:22,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:37:22,708 INFO L87 Difference]: Start difference. First operand 1586 states and 1675 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:37:29,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:37:29,689 INFO L93 Difference]: Finished difference Result 1585 states and 1674 transitions. [2024-11-13 23:37:29,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:37:29,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-13 23:37:29,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:37:29,695 INFO L225 Difference]: With dead ends: 1585 [2024-11-13 23:37:29,695 INFO L226 Difference]: Without dead ends: 1585 [2024-11-13 23:37:29,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:37:29,696 INFO L432 NwaCegarLoop]: 1621 mSDtfsCounter, 2 mSDsluCounter, 2547 mSDsCounter, 0 mSdLazyCounter, 2323 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4168 SdHoareTripleChecker+Invalid, 2324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:37:29,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4168 Invalid, 2324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2323 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-11-13 23:37:29,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2024-11-13 23:37:29,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2024-11-13 23:37:29,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 904 states have (on average 1.825221238938053) internal successors, (1650), 1575 states have internal predecessors, (1650), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 23:37:29,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 1674 transitions. [2024-11-13 23:37:29,726 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 1674 transitions. Word has length 59 [2024-11-13 23:37:29,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:37:29,726 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 1674 transitions. [2024-11-13 23:37:29,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:37:29,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 1674 transitions. [2024-11-13 23:37:29,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-13 23:37:29,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:37:29,728 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:37:29,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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)] Ended with exit code 0 [2024-11-13 23:37:29,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:29,929 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:37:29,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:37:29,930 INFO L85 PathProgramCache]: Analyzing trace with hash -119945915, now seen corresponding path program 1 times [2024-11-13 23:37:29,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:37:29,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781670160] [2024-11-13 23:37:29,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:37:29,931 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 [2024-11-13 23:37:29,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:37:29,934 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:37:29,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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)] Waiting until timeout for monitored process [2024-11-13 23:37:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:37:30,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 23:37:30,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:30,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-13 23:37:30,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 23:37:30,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 23:37:30,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-13 23:37:30,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:30,610 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:37:30,610 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:37:30,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781670160] [2024-11-13 23:37:30,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781670160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:37:30,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:37:30,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:37:30,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691649697] [2024-11-13 23:37:30,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:37:30,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:37:30,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:37:30,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:37:30,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:37:30,611 INFO L87 Difference]: Start difference. First operand 1585 states and 1674 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:37:38,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:37:38,904 INFO L93 Difference]: Finished difference Result 1584 states and 1673 transitions. [2024-11-13 23:37:38,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:37:38,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-13 23:37:38,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:37:38,910 INFO L225 Difference]: With dead ends: 1584 [2024-11-13 23:37:38,911 INFO L226 Difference]: Without dead ends: 1584 [2024-11-13 23:37:38,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 23:37:38,912 INFO L432 NwaCegarLoop]: 1621 mSDtfsCounter, 1 mSDsluCounter, 2597 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4218 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:37:38,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4218 Invalid, 2271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2270 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-11-13 23:37:38,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2024-11-13 23:37:38,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1584. [2024-11-13 23:37:38,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 903 states have (on average 1.8261351052048727) internal successors, (1649), 1574 states have internal predecessors, (1649), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 23:37:38,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 1673 transitions. [2024-11-13 23:37:38,941 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 1673 transitions. Word has length 59 [2024-11-13 23:37:38,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:37:38,941 INFO L471 AbstractCegarLoop]: Abstraction has 1584 states and 1673 transitions. [2024-11-13 23:37:38,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 23:37:38,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 1673 transitions. [2024-11-13 23:37:38,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 23:37:38,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:37:38,943 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:37:38,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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)] Forceful destruction successful, exit code 0 [2024-11-13 23:37:39,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:39,144 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:37:39,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:37:39,145 INFO L85 PathProgramCache]: Analyzing trace with hash -792259445, now seen corresponding path program 1 times [2024-11-13 23:37:39,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:37:39,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339710232] [2024-11-13 23:37:39,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:37:39,147 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 [2024-11-13 23:37:39,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:37:39,150 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:37:39,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 (14)] Waiting until timeout for monitored process [2024-11-13 23:37:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:37:39,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:37:39,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:39,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:39,695 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:37:39,695 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:37:39,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339710232] [2024-11-13 23:37:39,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339710232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:37:39,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:37:39,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 23:37:39,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21575371] [2024-11-13 23:37:39,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:37:39,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 23:37:39,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:37:39,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 23:37:39,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:37:39,700 INFO L87 Difference]: Start difference. First operand 1584 states and 1673 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 23:37:39,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:37:39,803 INFO L93 Difference]: Finished difference Result 1587 states and 1678 transitions. [2024-11-13 23:37:39,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 23:37:39,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2024-11-13 23:37:39,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:37:39,820 INFO L225 Difference]: With dead ends: 1587 [2024-11-13 23:37:39,820 INFO L226 Difference]: Without dead ends: 1587 [2024-11-13 23:37:39,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 23:37:39,821 INFO L432 NwaCegarLoop]: 1620 mSDtfsCounter, 0 mSDsluCounter, 3232 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4852 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:37:39,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4852 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:37:39,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2024-11-13 23:37:39,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2024-11-13 23:37:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 905 states have (on average 1.825414364640884) internal successors, (1652), 1577 states have internal predecessors, (1652), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-13 23:37:39,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 1678 transitions. [2024-11-13 23:37:39,865 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 1678 transitions. Word has length 67 [2024-11-13 23:37:39,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:37:39,866 INFO L471 AbstractCegarLoop]: Abstraction has 1587 states and 1678 transitions. [2024-11-13 23:37:39,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-13 23:37:39,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 1678 transitions. [2024-11-13 23:37:39,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 23:37:39,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:37:39,867 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:37:39,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 (14)] Forceful destruction successful, exit code 0 [2024-11-13 23:37:40,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:40,072 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:37:40,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:37:40,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1242827041, now seen corresponding path program 1 times [2024-11-13 23:37:40,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:37:40,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245585276] [2024-11-13 23:37:40,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:37:40,074 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 [2024-11-13 23:37:40,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:37:40,077 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:37:40,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:37:40,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:37:40,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:40,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:40,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:37:40,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:40,697 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:37:40,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245585276] [2024-11-13 23:37:40,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1245585276] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:37:40,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [49368408] [2024-11-13 23:37:40,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:37:40,698 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:37:40,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:37:40,701 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:37:40,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-13 23:37:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:37:41,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:37:41,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:41,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:41,458 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:37:41,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:41,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [49368408] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:37:41,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953969626] [2024-11-13 23:37:41,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:37:41,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:37:41,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:37:41,509 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:37:41,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 23:37:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:37:41,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:37:41,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:41,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:41,958 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:37:42,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:42,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953969626] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:37:42,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-13 23:37:42,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2024-11-13 23:37:42,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540223042] [2024-11-13 23:37:42,004 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-13 23:37:42,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 23:37:42,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:37:42,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 23:37:42,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 23:37:42,006 INFO L87 Difference]: Start difference. First operand 1587 states and 1678 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:37:42,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:37:42,308 INFO L93 Difference]: Finished difference Result 1599 states and 1696 transitions. [2024-11-13 23:37:42,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 23:37:42,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2024-11-13 23:37:42,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:37:42,316 INFO L225 Difference]: With dead ends: 1599 [2024-11-13 23:37:42,316 INFO L226 Difference]: Without dead ends: 1599 [2024-11-13 23:37:42,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-13 23:37:42,317 INFO L432 NwaCegarLoop]: 1619 mSDtfsCounter, 8 mSDsluCounter, 3233 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4852 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:37:42,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4852 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:37:42,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2024-11-13 23:37:42,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1597. [2024-11-13 23:37:42,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 914 states have (on average 1.823851203501094) internal successors, (1667), 1586 states have internal predecessors, (1667), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-13 23:37:42,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 1693 transitions. [2024-11-13 23:37:42,351 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 1693 transitions. Word has length 68 [2024-11-13 23:37:42,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:37:42,352 INFO L471 AbstractCegarLoop]: Abstraction has 1597 states and 1693 transitions. [2024-11-13 23:37:42,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:37:42,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 1693 transitions. [2024-11-13 23:37:42,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 23:37:42,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:37:42,353 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:37:42,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:42,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 23:37:42,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2024-11-13 23:37:42,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-13 23:37:42,954 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:37:42,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:37:42,955 INFO L85 PathProgramCache]: Analyzing trace with hash 917146123, now seen corresponding path program 2 times [2024-11-13 23:37:42,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:37:42,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500588794] [2024-11-13 23:37:42,956 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:37:42,956 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 [2024-11-13 23:37:42,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:37:42,961 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:37:42,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:37:43,539 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:37:43,540 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:37:43,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 23:37:43,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:43,658 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:43,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:37:44,009 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:44,009 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:37:44,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500588794] [2024-11-13 23:37:44,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500588794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:37:44,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [319079154] [2024-11-13 23:37:44,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:37:44,010 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:37:44,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:37:44,013 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:37:44,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-13 23:37:45,986 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:37:45,987 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:37:46,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 23:37:46,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:46,062 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:46,062 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:37:46,210 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:37:46,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [319079154] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:37:46,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038745891] [2024-11-13 23:37:46,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:37:46,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:37:46,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:37:46,213 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:37:46,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-13 23:37:54,411 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:37:54,412 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:37:54,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 23:37:54,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:37:54,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-13 23:37:54,613 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 23:37:54,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 23:37:54,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 23:37:55,071 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 23:37:55,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 23:37:55,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-13 23:37:55,227 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:37:55,227 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:37:55,395 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-13 23:37:55,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-13 23:37:55,410 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1295 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_1295) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)) |c_ULTIMATE.start_main_#t~mem32#1.base|)) is different from false [2024-11-13 23:37:55,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038745891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:37:55,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 5 imperfect interpolant sequences. [2024-11-13 23:37:55,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 10] total 23 [2024-11-13 23:37:55,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361914618] [2024-11-13 23:37:55,415 INFO L85 oduleStraightlineAll]: Using 5 imperfect interpolants to construct interpolant automaton [2024-11-13 23:37:55,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 23:37:55,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:37:55,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 23:37:55,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=467, Unknown=1, NotChecked=44, Total=600 [2024-11-13 23:37:55,417 INFO L87 Difference]: Start difference. First operand 1597 states and 1693 transitions. Second operand has 23 states, 22 states have (on average 6.409090909090909) internal successors, (141), 22 states have internal predecessors, (141), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 23:38:21,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:38:21,643 INFO L93 Difference]: Finished difference Result 1613 states and 1716 transitions. [2024-11-13 23:38:21,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-13 23:38:21,644 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.409090909090909) internal successors, (141), 22 states have internal predecessors, (141), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 71 [2024-11-13 23:38:21,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:38:21,651 INFO L225 Difference]: With dead ends: 1613 [2024-11-13 23:38:21,651 INFO L226 Difference]: Without dead ends: 1607 [2024-11-13 23:38:21,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=386, Invalid=1969, Unknown=1, NotChecked=94, Total=2450 [2024-11-13 23:38:21,653 INFO L432 NwaCegarLoop]: 1044 mSDtfsCounter, 1149 mSDsluCounter, 11657 mSDsCounter, 0 mSdLazyCounter, 9124 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 12701 SdHoareTripleChecker+Invalid, 9177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 9124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:38:21,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 12701 Invalid, 9177 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [53 Valid, 9124 Invalid, 0 Unknown, 0 Unchecked, 24.6s Time] [2024-11-13 23:38:21,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2024-11-13 23:38:21,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1605. [2024-11-13 23:38:21,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 923 states have (on average 1.8169014084507042) internal successors, (1677), 1594 states have internal predecessors, (1677), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-13 23:38:21,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 1703 transitions. [2024-11-13 23:38:21,687 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 1703 transitions. Word has length 71 [2024-11-13 23:38:21,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:38:21,688 INFO L471 AbstractCegarLoop]: Abstraction has 1605 states and 1703 transitions. [2024-11-13 23:38:21,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.409090909090909) internal successors, (141), 22 states have internal predecessors, (141), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 23:38:21,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 1703 transitions. [2024-11-13 23:38:21,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 23:38:21,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:38:21,690 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:38:21,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-13 23:38:21,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:38:22,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-11-13 23:38:22,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-13 23:38:22,291 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:38:22,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:38:22,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1360466508, now seen corresponding path program 1 times [2024-11-13 23:38:22,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:38:22,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596864994] [2024-11-13 23:38:22,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:38:22,293 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 [2024-11-13 23:38:22,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:38:22,296 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:38:22,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:38:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:38:22,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 23:38:22,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:38:23,073 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:38:23,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:38:23,951 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:38:23,951 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:38:23,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596864994] [2024-11-13 23:38:23,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596864994] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:38:23,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1833896337] [2024-11-13 23:38:23,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:38:23,951 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:38:23,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:38:23,957 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:38:23,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-13 23:38:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:38:24,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 23:38:24,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:38:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:38:24,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:38:25,179 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:38:25,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1833896337] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:38:25,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223085129] [2024-11-13 23:38:25,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:38:25,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:38:25,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:38:25,183 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:38:25,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-13 23:38:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:38:25,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 23:38:25,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:38:25,876 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:38:25,876 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:38:27,020 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:38:27,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223085129] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:38:27,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-13 23:38:27,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 14, 14] total 38 [2024-11-13 23:38:27,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947570525] [2024-11-13 23:38:27,021 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-13 23:38:27,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-13 23:38:27,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:38:27,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-13 23:38:27,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=959, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 23:38:27,024 INFO L87 Difference]: Start difference. First operand 1605 states and 1703 transitions. Second operand has 38 states, 38 states have (on average 2.6842105263157894) internal successors, (102), 38 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:38:30,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:38:30,098 INFO L93 Difference]: Finished difference Result 1631 states and 1745 transitions. [2024-11-13 23:38:30,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-13 23:38:30,099 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.6842105263157894) internal successors, (102), 38 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 77 [2024-11-13 23:38:30,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:38:30,103 INFO L225 Difference]: With dead ends: 1631 [2024-11-13 23:38:30,103 INFO L226 Difference]: Without dead ends: 1625 [2024-11-13 23:38:30,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1168, Invalid=2254, Unknown=0, NotChecked=0, Total=3422 [2024-11-13 23:38:30,105 INFO L432 NwaCegarLoop]: 1619 mSDtfsCounter, 18 mSDsluCounter, 24205 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 25824 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:38:30,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 25824 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 23:38:30,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1625 states. [2024-11-13 23:38:30,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1625 to 1623. [2024-11-13 23:38:30,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 941 states have (on average 1.8065887353878853) internal successors, (1700), 1612 states have internal predecessors, (1700), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-13 23:38:30,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 1726 transitions. [2024-11-13 23:38:30,154 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 1726 transitions. Word has length 77 [2024-11-13 23:38:30,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:38:30,154 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 1726 transitions. [2024-11-13 23:38:30,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.6842105263157894) internal successors, (102), 38 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 23:38:30,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 1726 transitions. [2024-11-13 23:38:30,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-13 23:38:30,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:38:30,156 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:38:30,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2024-11-13 23:38:30,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:38:30,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-13 23:38:30,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:38:30,757 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:38:30,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:38:30,758 INFO L85 PathProgramCache]: Analyzing trace with hash -2010213684, now seen corresponding path program 2 times [2024-11-13 23:38:30,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:38:30,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618116660] [2024-11-13 23:38:30,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:38:30,758 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 [2024-11-13 23:38:30,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:38:30,765 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:38:30,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 [2024-11-13 23:38:31,480 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:38:31,480 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:38:31,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-13 23:38:31,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:38:32,451 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:38:32,451 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:38:35,724 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:38:35,724 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:38:35,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618116660] [2024-11-13 23:38:35,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618116660] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:38:35,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [196702948] [2024-11-13 23:38:35,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:38:35,724 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:38:35,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:38:35,727 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:38:35,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-13 23:38:37,655 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:38:37,655 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:38:37,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-13 23:38:37,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:38:37,892 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:38:37,892 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:38:38,804 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:38:38,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [196702948] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:38:38,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071727272] [2024-11-13 23:38:38,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 23:38:38,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:38:38,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:38:38,808 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:38:38,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-13 23:38:50,224 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 23:38:50,224 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:38:50,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 23:38:50,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:38:51,814 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:38:51,814 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:38:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:38:52,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071727272] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:38:52,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-13 23:38:52,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26, 26, 26, 26] total 68 [2024-11-13 23:38:52,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579080484] [2024-11-13 23:38:52,305 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-13 23:38:52,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2024-11-13 23:38:52,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:38:52,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2024-11-13 23:38:52,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1140, Invalid=3416, Unknown=0, NotChecked=0, Total=4556 [2024-11-13 23:38:52,311 INFO L87 Difference]: Start difference. First operand 1623 states and 1726 transitions. Second operand has 68 states, 68 states have (on average 1.9264705882352942) internal successors, (131), 68 states have internal predecessors, (131), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:39:05,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:39:05,965 INFO L93 Difference]: Finished difference Result 1665 states and 1801 transitions. [2024-11-13 23:39:05,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-13 23:39:05,966 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 1.9264705882352942) internal successors, (131), 68 states have internal predecessors, (131), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 89 [2024-11-13 23:39:05,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:39:05,972 INFO L225 Difference]: With dead ends: 1665 [2024-11-13 23:39:05,972 INFO L226 Difference]: Without dead ends: 1659 [2024-11-13 23:39:05,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1448 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=3648, Invalid=8784, Unknown=0, NotChecked=0, Total=12432 [2024-11-13 23:39:05,976 INFO L432 NwaCegarLoop]: 1619 mSDtfsCounter, 29 mSDsluCounter, 38771 mSDsCounter, 0 mSdLazyCounter, 2640 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 40390 SdHoareTripleChecker+Invalid, 2663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:39:05,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 40390 Invalid, 2663 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 2640 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-13 23:39:05,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2024-11-13 23:39:06,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1659. [2024-11-13 23:39:06,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1659 states, 977 states have (on average 1.7891504605936541) internal successors, (1748), 1648 states have internal predecessors, (1748), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-13 23:39:06,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 1774 transitions. [2024-11-13 23:39:06,012 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 1774 transitions. Word has length 89 [2024-11-13 23:39:06,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:39:06,013 INFO L471 AbstractCegarLoop]: Abstraction has 1659 states and 1774 transitions. [2024-11-13 23:39:06,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 1.9264705882352942) internal successors, (131), 68 states have internal predecessors, (131), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 23:39:06,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 1774 transitions. [2024-11-13 23:39:06,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 23:39:06,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:39:06,014 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:39:06,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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)] Ended with exit code 0 [2024-11-13 23:39:06,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2024-11-13 23:39:06,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-13 23:39:06,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:39:06,619 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-13 23:39:06,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:39:06,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1641422580, now seen corresponding path program 3 times [2024-11-13 23:39:06,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:39:06,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165568321] [2024-11-13 23:39:06,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:39:06,620 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 [2024-11-13 23:39:06,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:39:06,622 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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) [2024-11-13 23:39:06,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/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 (27)] Waiting until timeout for monitored process [2024-11-13 23:39:09,700 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2024-11-13 23:39:09,700 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:39:09,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 109 conjuncts are in the unsatisfiable core [2024-11-13 23:39:09,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:39:09,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-13 23:39:10,094 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 23:39:10,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 23:39:10,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-13 23:39:10,146 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 11 treesize of output 7 [2024-11-13 23:39:10,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 23:39:10,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 23:39:10,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-13 23:39:11,591 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-13 23:39:11,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2024-11-13 23:39:11,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-13 23:39:11,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-13 23:39:11,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-13 23:39:11,696 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 23:39:11,696 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:39:13,732 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_2949 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2950 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_2950) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_2949) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_2950 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_2950) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd .cse1 (_ bv16 32)) (bvadd .cse1 (_ bv20 32))))))) is different from false [2024-11-13 23:39:13,739 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:39:13,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165568321] [2024-11-13 23:39:13,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165568321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:39:13,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [841067551] [2024-11-13 23:39:13,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:39:13,740 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:39:13,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-13 23:39:13,742 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:39:13,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2024-11-13 23:46:41,931 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2024-11-13 23:46:41,931 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 23:46:42,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 109 conjuncts are in the unsatisfiable core [2024-11-13 23:46:42,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:46:42,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-13 23:46:42,334 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 23:46:42,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 23:46:42,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-13 23:46:42,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 23:46:42,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 23:46:42,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-13 23:46:42,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-13 23:46:43,580 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 23:46:43,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-13 23:46:43,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-13 23:46:43,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-13 23:46:43,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-13 23:46:43,726 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 23:46:43,727 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:46:45,344 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3489 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3488 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3489) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3488) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_3489 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3489) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd (_ bv20 32) .cse1)))))) is different from false [2024-11-13 23:46:45,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [841067551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:46:45,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315318355] [2024-11-13 23:46:45,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 23:46:45,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:46:45,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:46:45,352 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:46:45,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545a7d46-2e1a-4337-8d17-e0bb4f8d6ca7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process