./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb5220aa49e6d5ce07adbf2b5e67e7c8f277342987ef62ca05a827d2ae217f75 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:06:49,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:06:49,683 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2023-11-19 05:06:49,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:06:49,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:06:49,741 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:06:49,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:06:49,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:06:49,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:06:49,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:06:49,751 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:06:49,752 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:06:49,752 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:06:49,755 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:06:49,755 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:06:49,756 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:06:49,756 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:06:49,757 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:06:49,757 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:06:49,758 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:06:49,759 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:06:49,759 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:06:49,760 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:06:49,761 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:06:49,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:06:49,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:06:49,763 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:06:49,764 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:06:49,764 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:06:49,765 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:06:49,766 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:06:49,766 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:06:49,767 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:06:49,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:06:49,767 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:06:49,768 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:06:49,768 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:06:49,768 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:06:49,768 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:06:49,769 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:06:49,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:06:49,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:06:49,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:06:49,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:06:49,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:06:49,771 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:06:49,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:06:49,772 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:06:49,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:06:49,772 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb5220aa49e6d5ce07adbf2b5e67e7c8f277342987ef62ca05a827d2ae217f75 [2023-11-19 05:06:50,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:06:50,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:06:50,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:06:50,236 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:06:50,237 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:06:50,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i [2023-11-19 05:06:53,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:06:54,255 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:06:54,256 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i [2023-11-19 05:06:54,288 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/data/6535b15c2/ac21cbc67b10416d88a5988bb85c0fb2/FLAG626a3bc29 [2023-11-19 05:06:54,308 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/data/6535b15c2/ac21cbc67b10416d88a5988bb85c0fb2 [2023-11-19 05:06:54,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:06:54,316 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:06:54,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:06:54,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:06:54,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:06:54,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:06:54" (1/1) ... [2023-11-19 05:06:54,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f4232a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:54, skipping insertion in model container [2023-11-19 05:06:54,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:06:54" (1/1) ... [2023-11-19 05:06:54,430 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:06:54,739 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:06:55,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:06:55,181 ERROR L324 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) [2023-11-19 05:06:55,182 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@549c2c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:06:55, skipping insertion in model container [2023-11-19 05:06:55,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:06:55,183 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 05:06:55,193 INFO L158 Benchmark]: Toolchain (without parser) took 875.37ms. Allocated memory is still 165.7MB. Free memory was 130.0MB in the beginning and 109.7MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 05:06:55,194 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 113.2MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:06:55,195 INFO L158 Benchmark]: CACSL2BoogieTranslator took 862.01ms. Allocated memory is still 165.7MB. Free memory was 130.0MB in the beginning and 109.7MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 05:06:55,198 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 113.2MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 862.01ms. Allocated memory is still 165.7MB. Free memory was 130.0MB in the beginning and 109.7MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 739]: 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb5220aa49e6d5ce07adbf2b5e67e7c8f277342987ef62ca05a827d2ae217f75 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:06:58,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:06:58,264 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2023-11-19 05:06:58,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:06:58,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:06:58,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:06:58,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:06:58,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:06:58,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:06:58,335 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:06:58,336 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:06:58,336 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:06:58,337 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:06:58,339 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:06:58,340 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:06:58,340 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:06:58,341 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:06:58,342 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:06:58,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:06:58,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:06:58,345 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:06:58,346 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:06:58,346 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:06:58,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:06:58,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:06:58,348 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:06:58,349 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:06:58,349 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:06:58,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:06:58,350 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:06:58,352 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:06:58,352 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:06:58,353 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:06:58,353 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:06:58,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:06:58,354 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:06:58,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:06:58,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:06:58,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:06:58,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:06:58,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:06:58,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:06:58,357 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:06:58,357 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:06:58,358 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:06:58,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:06:58,359 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb5220aa49e6d5ce07adbf2b5e67e7c8f277342987ef62ca05a827d2ae217f75 [2023-11-19 05:06:58,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:06:58,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:06:58,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:06:58,879 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:06:58,881 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:06:58,883 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i [2023-11-19 05:07:02,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:07:03,089 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:07:03,089 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test3-2.i [2023-11-19 05:07:03,113 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/data/6937a6793/e3aa555e57c14bb384833df6e43db321/FLAG0f4d77c1a [2023-11-19 05:07:03,134 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/data/6937a6793/e3aa555e57c14bb384833df6e43db321 [2023-11-19 05:07:03,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:07:03,142 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:07:03,144 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:07:03,144 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:07:03,157 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:07:03,158 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:07:03" (1/1) ... [2023-11-19 05:07:03,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c14f99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:03, skipping insertion in model container [2023-11-19 05:07:03,159 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:07:03" (1/1) ... [2023-11-19 05:07:03,280 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:07:03,699 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:07:04,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:07:04,206 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 05:07:04,221 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:07:04,230 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:07:04,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:07:04,351 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:07:04,375 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:07:04,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:07:04,559 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:07:04,560 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:07:04,570 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:07:04,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:04 WrapperNode [2023-11-19 05:07:04,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:07:04,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:07:04,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:07:04,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:07:04,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:04" (1/1) ... [2023-11-19 05:07:04,654 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:04" (1/1) ... [2023-11-19 05:07:04,777 INFO L138 Inliner]: procedures = 181, calls = 334, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1174 [2023-11-19 05:07:04,778 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:07:04,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:07:04,779 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:07:04,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:07:04,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:04" (1/1) ... [2023-11-19 05:07:04,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:04" (1/1) ... [2023-11-19 05:07:04,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:04" (1/1) ... [2023-11-19 05:07:04,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:04" (1/1) ... [2023-11-19 05:07:04,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:04" (1/1) ... [2023-11-19 05:07:04,933 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:04" (1/1) ... [2023-11-19 05:07:04,945 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:04" (1/1) ... [2023-11-19 05:07:04,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:04" (1/1) ... [2023-11-19 05:07:04,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:07:04,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:07:04,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:07:04,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:07:04,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:04" (1/1) ... [2023-11-19 05:07:05,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:07:05,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:07:05,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:07:05,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:07:05,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 05:07:05,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 05:07:05,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 05:07:05,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 05:07:05,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:07:05,083 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:07:05,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:07:05,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:07:05,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:07:05,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:07:05,084 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 05:07:05,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:07:05,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 05:07:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:07:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:07:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:07:05,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:07:05,394 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:07:05,400 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:07:13,905 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:07:13,928 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:07:13,931 INFO L302 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-19 05:07:13,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:07:13 BoogieIcfgContainer [2023-11-19 05:07:13,946 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:07:13,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:07:13,950 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:07:13,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:07:13,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:07:03" (1/3) ... [2023-11-19 05:07:13,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f6d093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:07:13, skipping insertion in model container [2023-11-19 05:07:13,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:07:04" (2/3) ... [2023-11-19 05:07:13,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f6d093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:07:13, skipping insertion in model container [2023-11-19 05:07:13,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:07:13" (3/3) ... [2023-11-19 05:07:13,960 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_nondet_test3-2.i [2023-11-19 05:07:13,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:07:13,985 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 05:07:14,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:07:14,079 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@671ed2b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:07:14,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 05:07:14,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 233 states, 223 states have (on average 1.6591928251121075) internal successors, (370), 226 states have internal predecessors, (370), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 05:07:14,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 05:07:14,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:14,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 05:07:14,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 05:07:14,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:14,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1172780, now seen corresponding path program 1 times [2023-11-19 05:07:14,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:07:14,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503735092] [2023-11-19 05:07:14,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:14,121 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 [2023-11-19 05:07:14,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:07:14,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:07:14,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:14,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:07:14,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:14,552 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_17| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17| (_ bv0 1))))) is different from true [2023-11-19 05:07:14,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:14,556 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:07:14,557 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:07:14,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503735092] [2023-11-19 05:07:14,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503735092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:14,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:14,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:07:14,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942014519] [2023-11-19 05:07:14,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:14,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:07:14,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:07:14,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:07:14,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-19 05:07:14,616 INFO L87 Difference]: Start difference. First operand has 233 states, 223 states have (on average 1.6591928251121075) internal successors, (370), 226 states have internal predecessors, (370), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:17,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:19,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:19,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:19,303 INFO L93 Difference]: Finished difference Result 356 states and 468 transitions. [2023-11-19 05:07:19,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:07:19,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 05:07:19,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:19,326 INFO L225 Difference]: With dead ends: 356 [2023-11-19 05:07:19,327 INFO L226 Difference]: Without dead ends: 353 [2023-11-19 05:07:19,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-19 05:07:19,334 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 157 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 469 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:19,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 571 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 2 Unknown, 469 Unchecked, 4.6s Time] [2023-11-19 05:07:19,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-19 05:07:19,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 230. [2023-11-19 05:07:19,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 221 states have (on average 1.3031674208144797) internal successors, (288), 223 states have internal predecessors, (288), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 05:07:19,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 298 transitions. [2023-11-19 05:07:19,420 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 298 transitions. Word has length 4 [2023-11-19 05:07:19,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:19,421 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 298 transitions. [2023-11-19 05:07:19,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:19,421 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 298 transitions. [2023-11-19 05:07:19,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 05:07:19,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:19,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:19,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:19,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:19,631 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 05:07:19,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:19,632 INFO L85 PathProgramCache]: Analyzing trace with hash 597418678, now seen corresponding path program 1 times [2023-11-19 05:07:19,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:07:19,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818842226] [2023-11-19 05:07:19,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:19,633 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 [2023-11-19 05:07:19,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:07:19,635 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:07:19,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:19,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:07:19,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:20,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:20,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:07:20,016 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:07:20,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818842226] [2023-11-19 05:07:20,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818842226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:20,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:20,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:07:20,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486793962] [2023-11-19 05:07:20,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:20,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:07:20,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:07:20,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:07:20,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:07:20,022 INFO L87 Difference]: Start difference. First operand 230 states and 298 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:22,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:26,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:26,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:26,968 INFO L93 Difference]: Finished difference Result 377 states and 490 transitions. [2023-11-19 05:07:26,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:07:26,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-19 05:07:26,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:26,975 INFO L225 Difference]: With dead ends: 377 [2023-11-19 05:07:26,976 INFO L226 Difference]: Without dead ends: 377 [2023-11-19 05:07:26,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:07:26,978 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 195 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:26,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 824 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 110 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2023-11-19 05:07:26,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-11-19 05:07:27,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 345. [2023-11-19 05:07:27,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 335 states have (on average 1.3044776119402985) internal successors, (437), 338 states have internal predecessors, (437), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 05:07:27,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 449 transitions. [2023-11-19 05:07:27,011 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 449 transitions. Word has length 15 [2023-11-19 05:07:27,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:27,012 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 449 transitions. [2023-11-19 05:07:27,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:27,012 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 449 transitions. [2023-11-19 05:07:27,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 05:07:27,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:27,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:27,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:07:27,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:27,217 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 05:07:27,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:27,218 INFO L85 PathProgramCache]: Analyzing trace with hash -815095765, now seen corresponding path program 1 times [2023-11-19 05:07:27,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:07:27,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382848860] [2023-11-19 05:07:27,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:27,219 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 [2023-11-19 05:07:27,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:07:27,223 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:07:27,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:27,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:07:27,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:27,751 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_18| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_18| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_18|)))) is different from true [2023-11-19 05:07:27,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:27,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:07:27,752 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:07:27,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382848860] [2023-11-19 05:07:27,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382848860] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:27,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:27,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:07:27,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863676892] [2023-11-19 05:07:27,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:27,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:07:27,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:07:27,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:07:27,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-19 05:07:27,755 INFO L87 Difference]: Start difference. First operand 345 states and 449 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:29,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:31,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:31,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:31,581 INFO L93 Difference]: Finished difference Result 438 states and 568 transitions. [2023-11-19 05:07:31,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:07:31,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-19 05:07:31,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:31,585 INFO L225 Difference]: With dead ends: 438 [2023-11-19 05:07:31,585 INFO L226 Difference]: Without dead ends: 430 [2023-11-19 05:07:31,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-19 05:07:31,587 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 86 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 400 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:31,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 566 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 1 Unknown, 400 Unchecked, 3.8s Time] [2023-11-19 05:07:31,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2023-11-19 05:07:31,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 390. [2023-11-19 05:07:31,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 379 states have (on average 1.3034300791556728) internal successors, (494), 382 states have internal predecessors, (494), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 05:07:31,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 508 transitions. [2023-11-19 05:07:31,613 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 508 transitions. Word has length 16 [2023-11-19 05:07:31,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:31,614 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 508 transitions. [2023-11-19 05:07:31,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:31,614 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 508 transitions. [2023-11-19 05:07:31,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 05:07:31,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:31,617 INFO L195 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] [2023-11-19 05:07:31,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:07:31,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:31,822 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 05:07:31,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:31,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1616742374, now seen corresponding path program 1 times [2023-11-19 05:07:31,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:07:31,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627355740] [2023-11-19 05:07:31,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:31,828 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 [2023-11-19 05:07:31,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:07:31,830 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:07:31,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:32,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:07:32,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:32,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:32,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:07:32,164 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:07:32,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627355740] [2023-11-19 05:07:32,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627355740] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:32,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:32,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:07:32,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590190441] [2023-11-19 05:07:32,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:32,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:07:32,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:07:32,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:07:32,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:07:32,167 INFO L87 Difference]: Start difference. First operand 390 states and 508 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:32,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:32,350 INFO L93 Difference]: Finished difference Result 402 states and 496 transitions. [2023-11-19 05:07:32,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:07:32,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-11-19 05:07:32,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:32,354 INFO L225 Difference]: With dead ends: 402 [2023-11-19 05:07:32,355 INFO L226 Difference]: Without dead ends: 402 [2023-11-19 05:07:32,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:07:32,357 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 36 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:32,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 781 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:07:32,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-11-19 05:07:32,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 399. [2023-11-19 05:07:32,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 388 states have (on average 1.2345360824742269) internal successors, (479), 391 states have internal predecessors, (479), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 05:07:32,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 493 transitions. [2023-11-19 05:07:32,409 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 493 transitions. Word has length 51 [2023-11-19 05:07:32,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:32,409 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 493 transitions. [2023-11-19 05:07:32,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:32,410 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 493 transitions. [2023-11-19 05:07:32,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 05:07:32,413 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:32,413 INFO L195 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] [2023-11-19 05:07:32,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:32,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:32,614 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 05:07:32,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:32,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2031919066, now seen corresponding path program 1 times [2023-11-19 05:07:32,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:07:32,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556858973] [2023-11-19 05:07:32,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:32,615 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 [2023-11-19 05:07:32,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:07:32,617 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:07:32,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:32,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 05:07:32,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:32,935 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 05:07:32,936 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 05:07:32,937 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 05:07:32,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-19 05:07:33,049 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 05:07:33,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-19 05:07:33,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:33,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:07:33,123 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:07:33,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556858973] [2023-11-19 05:07:33,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556858973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:33,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:33,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:07:33,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224204658] [2023-11-19 05:07:33,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:33,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:07:33,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:07:33,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:07:33,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:07:33,126 INFO L87 Difference]: Start difference. First operand 399 states and 493 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:37,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:41,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:42,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:07:42,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:42,381 INFO L93 Difference]: Finished difference Result 353 states and 440 transitions. [2023-11-19 05:07:42,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:07:42,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-11-19 05:07:42,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:42,386 INFO L225 Difference]: With dead ends: 353 [2023-11-19 05:07:42,386 INFO L226 Difference]: Without dead ends: 350 [2023-11-19 05:07:42,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:07:42,388 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 52 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:42,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1002 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2023-11-19 05:07:42,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-11-19 05:07:42,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2023-11-19 05:07:42,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 340 states have (on average 1.25) internal successors, (425), 343 states have internal predecessors, (425), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 05:07:42,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 437 transitions. [2023-11-19 05:07:42,405 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 437 transitions. Word has length 51 [2023-11-19 05:07:42,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:42,406 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 437 transitions. [2023-11-19 05:07:42,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:07:42,406 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 437 transitions. [2023-11-19 05:07:42,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 05:07:42,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:42,411 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:42,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:07:42,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:42,618 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 05:07:42,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:42,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1457408927, now seen corresponding path program 1 times [2023-11-19 05:07:42,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:07:42,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677499328] [2023-11-19 05:07:42,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:42,620 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 [2023-11-19 05:07:42,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:07:42,621 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:07:42,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:43,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:07:43,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 05:07:43,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:07:43,376 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:07:43,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677499328] [2023-11-19 05:07:43,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677499328] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:43,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:43,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:07:43,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311691783] [2023-11-19 05:07:43,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:43,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:07:43,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:07:43,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:07:43,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:07:43,381 INFO L87 Difference]: Start difference. First operand 350 states and 437 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:07:43,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:43,540 INFO L93 Difference]: Finished difference Result 358 states and 429 transitions. [2023-11-19 05:07:43,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:07:43,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2023-11-19 05:07:43,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:43,544 INFO L225 Difference]: With dead ends: 358 [2023-11-19 05:07:43,544 INFO L226 Difference]: Without dead ends: 358 [2023-11-19 05:07:43,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:07:43,546 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 43 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:43,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 745 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:07:43,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-19 05:07:43,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2023-11-19 05:07:43,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 346 states have (on average 1.199421965317919) internal successors, (415), 349 states have internal predecessors, (415), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 05:07:43,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 427 transitions. [2023-11-19 05:07:43,562 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 427 transitions. Word has length 86 [2023-11-19 05:07:43,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:43,562 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 427 transitions. [2023-11-19 05:07:43,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:07:43,563 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 427 transitions. [2023-11-19 05:07:43,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 05:07:43,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:43,567 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:43,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-19 05:07:43,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:43,776 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 05:07:43,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:43,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1721668111, now seen corresponding path program 1 times [2023-11-19 05:07:43,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:07:43,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363838333] [2023-11-19 05:07:43,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:43,778 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 [2023-11-19 05:07:43,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:07:43,779 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:07:43,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:44,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:07:44,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:44,616 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 05:07:44,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:07:44,617 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:07:44,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363838333] [2023-11-19 05:07:44,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363838333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:44,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:44,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:07:44,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964985238] [2023-11-19 05:07:44,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:44,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:07:44,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:07:44,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:07:44,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:07:44,621 INFO L87 Difference]: Start difference. First operand 356 states and 427 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:07:44,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:44,731 INFO L93 Difference]: Finished difference Result 344 states and 407 transitions. [2023-11-19 05:07:44,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:07:44,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2023-11-19 05:07:44,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:44,747 INFO L225 Difference]: With dead ends: 344 [2023-11-19 05:07:44,747 INFO L226 Difference]: Without dead ends: 344 [2023-11-19 05:07:44,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:07:44,750 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 9 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:44,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 746 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:07:44,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-19 05:07:44,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2023-11-19 05:07:44,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 334 states have (on average 1.1826347305389222) internal successors, (395), 337 states have internal predecessors, (395), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 05:07:44,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 407 transitions. [2023-11-19 05:07:44,774 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 407 transitions. Word has length 86 [2023-11-19 05:07:44,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:44,775 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 407 transitions. [2023-11-19 05:07:44,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 05:07:44,775 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 407 transitions. [2023-11-19 05:07:44,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 05:07:44,783 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:44,783 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:44,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:07:44,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:44,994 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 05:07:44,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:44,994 INFO L85 PathProgramCache]: Analyzing trace with hash 371245269, now seen corresponding path program 1 times [2023-11-19 05:07:44,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:07:44,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988946811] [2023-11-19 05:07:44,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:44,995 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 [2023-11-19 05:07:44,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:07:44,997 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:07:44,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:45,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:07:45,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:45,825 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:07:45,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:07:45,826 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:07:45,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988946811] [2023-11-19 05:07:45,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988946811] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:07:45,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:07:45,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:07:45,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814866959] [2023-11-19 05:07:45,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:07:45,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:07:45,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:07:45,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:07:45,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:07:45,831 INFO L87 Difference]: Start difference. First operand 344 states and 407 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 05:07:45,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:07:45,926 INFO L93 Difference]: Finished difference Result 347 states and 411 transitions. [2023-11-19 05:07:45,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:07:45,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 86 [2023-11-19 05:07:45,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:07:45,931 INFO L225 Difference]: With dead ends: 347 [2023-11-19 05:07:45,931 INFO L226 Difference]: Without dead ends: 347 [2023-11-19 05:07:45,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:07:45,932 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 2 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:07:45,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 803 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:07:45,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-19 05:07:45,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2023-11-19 05:07:45,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 336 states have (on average 1.1845238095238095) internal successors, (398), 340 states have internal predecessors, (398), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2023-11-19 05:07:45,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 411 transitions. [2023-11-19 05:07:45,951 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 411 transitions. Word has length 86 [2023-11-19 05:07:45,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:07:45,954 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 411 transitions. [2023-11-19 05:07:45,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 05:07:45,954 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 411 transitions. [2023-11-19 05:07:45,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-19 05:07:45,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:07:45,956 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:07:45,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:46,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:46,166 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 05:07:46,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:07:46,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1717737801, now seen corresponding path program 1 times [2023-11-19 05:07:46,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:07:46,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953725623] [2023-11-19 05:07:46,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:46,167 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 [2023-11-19 05:07:46,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:07:46,168 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:07:46,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:07:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:46,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:07:46,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 05:07:46,886 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:07:47,020 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:07:47,020 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:07:47,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953725623] [2023-11-19 05:07:47,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953725623] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:07:47,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2065445908] [2023-11-19 05:07:47,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:47,021 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:07:47,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:07:47,031 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:07:47,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-19 05:07:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:07:48,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:07:48,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:07:48,097 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 05:07:48,097 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:07:48,181 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 05:07:48,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2065445908] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:07:48,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730111960] [2023-11-19 05:07:48,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:07:48,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:07:48,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:07:48,188 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:07:48,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0ba46e3-3ddc-4b46-bec9-4ddedfe95e85/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process