./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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_114ffb8e-db16-40ea-8043-af60793223c8/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 2f3a36748f32ca088af5a89c176902d6a78b8f206b767e4775b8a1d3a36bb37f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:10:29,769 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:10:29,897 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2023-11-19 04:10:29,906 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:10:29,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:10:29,952 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:10:29,953 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:10:29,953 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:10:29,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:10:29,960 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:10:29,960 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:10:29,962 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:10:29,962 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:10:29,964 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:10:29,965 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:10:29,965 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:10:29,966 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:10:29,966 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:10:29,966 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:10:29,967 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:10:29,967 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:10:29,968 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:10:29,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:10:29,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:10:29,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:10:29,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:10:29,971 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:10:29,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:10:29,972 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:10:29,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:10:29,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:10:29,975 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:10:29,975 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:10:29,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:10:29,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:10:29,975 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:10:29,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:10:29,976 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:10:29,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:10:29,976 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:10:29,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:10:29,977 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:10:29,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:10:29,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:10:29,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:10:29,979 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:10:29,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:10:29,979 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:10:29,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:10:29,979 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_114ffb8e-db16-40ea-8043-af60793223c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f3a36748f32ca088af5a89c176902d6a78b8f206b767e4775b8a1d3a36bb37f [2023-11-19 04:10:30,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:10:30,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:10:30,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:10:30,294 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:10:30,295 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:10:30,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2023-11-19 04:10:33,472 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:10:33,861 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:10:33,861 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2023-11-19 04:10:33,883 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/data/14c11a117/a04be743f1d943638dc798d4bb894159/FLAGde737188c [2023-11-19 04:10:33,900 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/data/14c11a117/a04be743f1d943638dc798d4bb894159 [2023-11-19 04:10:33,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:10:33,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:10:33,906 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:10:33,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:10:33,913 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:10:33,914 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:10:33" (1/1) ... [2023-11-19 04:10:33,915 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50845011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:33, skipping insertion in model container [2023-11-19 04:10:33,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:10:33" (1/1) ... [2023-11-19 04:10:33,998 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:10:34,268 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:10:34,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:10:34,680 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 04:10:34,681 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@30e43b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:34, skipping insertion in model container [2023-11-19 04:10:34,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:10:34,682 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 04:10:34,684 INFO L158 Benchmark]: Toolchain (without parser) took 778.39ms. Allocated memory is still 155.2MB. Free memory was 108.7MB in the beginning and 89.2MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 04:10:34,685 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 111.1MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:10:34,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 775.39ms. Allocated memory is still 155.2MB. Free memory was 108.7MB in the beginning and 89.2MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 04:10:34,688 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 111.1MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 775.39ms. Allocated memory is still 155.2MB. Free memory was 108.7MB in the beginning and 89.2MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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_114ffb8e-db16-40ea-8043-af60793223c8/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 2f3a36748f32ca088af5a89c176902d6a78b8f206b767e4775b8a1d3a36bb37f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:10:37,480 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:10:37,636 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2023-11-19 04:10:37,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:10:37,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:10:37,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:10:37,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:10:37,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:10:37,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:10:37,711 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:10:37,712 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:10:37,713 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:10:37,713 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:10:37,716 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:10:37,716 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:10:37,717 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:10:37,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:10:37,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:10:37,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:10:37,721 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:10:37,722 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:10:37,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:10:37,723 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:10:37,723 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:10:37,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:10:37,725 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:10:37,725 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:10:37,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:10:37,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:10:37,727 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:10:37,729 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:10:37,729 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:10:37,730 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:10:37,730 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:10:37,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:10:37,731 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:10:37,732 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:10:37,732 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:10:37,733 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:10:37,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:10:37,733 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:10:37,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:10:37,734 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:10:37,735 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:10:37,735 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:10:37,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:10:37,736 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_114ffb8e-db16-40ea-8043-af60793223c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f3a36748f32ca088af5a89c176902d6a78b8f206b767e4775b8a1d3a36bb37f [2023-11-19 04:10:38,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:10:38,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:10:38,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:10:38,177 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:10:38,177 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:10:38,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2023-11-19 04:10:41,362 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:10:41,808 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:10:41,812 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-1.i [2023-11-19 04:10:41,844 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/data/19aa4c0f1/a21c415018cd4e1eb7f1a1e8dab0b552/FLAG40efe21b5 [2023-11-19 04:10:41,868 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/data/19aa4c0f1/a21c415018cd4e1eb7f1a1e8dab0b552 [2023-11-19 04:10:41,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:10:41,877 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:10:41,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:10:41,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:10:41,887 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:10:41,888 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:10:41" (1/1) ... [2023-11-19 04:10:41,889 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d902caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:41, skipping insertion in model container [2023-11-19 04:10:41,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:10:41" (1/1) ... [2023-11-19 04:10:41,980 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:10:42,307 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:10:42,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:10:42,649 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 04:10:42,675 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:10:42,686 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:10:42,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:10:42,803 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:10:42,847 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:10:42,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:10:43,011 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:10:43,011 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:10:43,019 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:10:43,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:43 WrapperNode [2023-11-19 04:10:43,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:10:43,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:10:43,022 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:10:43,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:10:43,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:43" (1/1) ... [2023-11-19 04:10:43,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:43" (1/1) ... [2023-11-19 04:10:43,209 INFO L138 Inliner]: procedures = 181, calls = 283, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1016 [2023-11-19 04:10:43,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:10:43,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:10:43,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:10:43,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:10:43,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:43" (1/1) ... [2023-11-19 04:10:43,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:43" (1/1) ... [2023-11-19 04:10:43,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:43" (1/1) ... [2023-11-19 04:10:43,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:43" (1/1) ... [2023-11-19 04:10:43,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:43" (1/1) ... [2023-11-19 04:10:43,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:43" (1/1) ... [2023-11-19 04:10:43,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:43" (1/1) ... [2023-11-19 04:10:43,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:43" (1/1) ... [2023-11-19 04:10:43,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:10:43,391 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:10:43,391 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:10:43,391 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:10:43,392 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:43" (1/1) ... [2023-11-19 04:10:43,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:10:43,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:10:43,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:10:43,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:10:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 04:10:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:10:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 04:10:43,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 04:10:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:10:43,478 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:10:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:10:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:10:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:10:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:10:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 04:10:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:10:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:10:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:10:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:10:43,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:10:43,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:10:43,755 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:10:43,757 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:10:52,192 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:10:52,210 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:10:52,212 INFO L302 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-19 04:10:52,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:52 BoogieIcfgContainer [2023-11-19 04:10:52,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:10:52,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:10:52,227 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:10:52,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:10:52,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:10:41" (1/3) ... [2023-11-19 04:10:52,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d554fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:10:52, skipping insertion in model container [2023-11-19 04:10:52,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:43" (2/3) ... [2023-11-19 04:10:52,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d554fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:10:52, skipping insertion in model container [2023-11-19 04:10:52,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:52" (3/3) ... [2023-11-19 04:10:52,236 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test3-1.i [2023-11-19 04:10:52,255 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:10:52,255 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:10:52,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:10:52,332 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;@75d34728, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:10:52,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:10:52,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 202 states, 192 states have (on average 1.6614583333333333) internal successors, (319), 195 states have internal predecessors, (319), 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 04:10:52,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:10:52,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:52,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 04:10:52,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:10:52,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:52,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1172651, now seen corresponding path program 1 times [2023-11-19 04:10:52,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:10:52,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435296853] [2023-11-19 04:10:52,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:52,376 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 04:10:52,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:10:52,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:10:52,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:10:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:52,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 04:10:52,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:10:52,723 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 04:10:52,726 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 04:10:52,726 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:10:52,727 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:10:52,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435296853] [2023-11-19 04:10:52,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435296853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:52,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:52,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:10:52,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602557862] [2023-11-19 04:10:52,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:52,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:10:52,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:10:52,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:10:52,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-19 04:10:52,789 INFO L87 Difference]: Start difference. First operand has 202 states, 192 states have (on average 1.6614583333333333) internal successors, (319), 195 states have internal predecessors, (319), 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 04:10:55,088 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 04:10:55,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:55,497 INFO L93 Difference]: Finished difference Result 297 states and 388 transitions. [2023-11-19 04:10:55,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:10:55,501 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 04:10:55,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:55,520 INFO L225 Difference]: With dead ends: 297 [2023-11-19 04:10:55,521 INFO L226 Difference]: Without dead ends: 294 [2023-11-19 04:10:55,523 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 04:10:55,529 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 121 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 389 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:55,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 487 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 1 Unknown, 389 Unchecked, 2.6s Time] [2023-11-19 04:10:55,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-19 04:10:55,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 199. [2023-11-19 04:10:55,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 190 states have (on average 1.2947368421052632) internal successors, (246), 192 states have internal predecessors, (246), 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 04:10:55,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 256 transitions. [2023-11-19 04:10:55,591 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 256 transitions. Word has length 4 [2023-11-19 04:10:55,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:55,592 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 256 transitions. [2023-11-19 04:10:55,592 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 04:10:55,593 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 256 transitions. [2023-11-19 04:10:55,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:10:55,594 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:55,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:55,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:10:55,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:10:55,797 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:10:55,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:55,797 INFO L85 PathProgramCache]: Analyzing trace with hash 482405728, now seen corresponding path program 1 times [2023-11-19 04:10:55,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:10:55,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772485781] [2023-11-19 04:10:55,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:55,798 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 04:10:55,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:10:55,833 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:10:55,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:10:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:56,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 04:10:56,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:10:56,280 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 04:10:56,281 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 04:10:56,281 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:10:56,282 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:10:56,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772485781] [2023-11-19 04:10:56,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772485781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:56,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:56,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:10:56,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421036280] [2023-11-19 04:10:56,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:56,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:10:56,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:10:56,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:10:56,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-19 04:10:56,285 INFO L87 Difference]: Start difference. First operand 199 states and 256 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 04:10:58,792 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 04:10:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:59,280 INFO L93 Difference]: Finished difference Result 295 states and 384 transitions. [2023-11-19 04:10:59,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:10:59,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2023-11-19 04:10:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:59,284 INFO L225 Difference]: With dead ends: 295 [2023-11-19 04:10:59,284 INFO L226 Difference]: Without dead ends: 293 [2023-11-19 04:10:59,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 04:10:59,286 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 113 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 383 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:59,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 484 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 383 Unchecked, 3.0s Time] [2023-11-19 04:10:59,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-19 04:10:59,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 269. [2023-11-19 04:10:59,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 258 states have (on average 1.302325581395349) internal successors, (336), 260 states have internal predecessors, (336), 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 04:10:59,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 350 transitions. [2023-11-19 04:10:59,308 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 350 transitions. Word has length 12 [2023-11-19 04:10:59,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:59,309 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 350 transitions. [2023-11-19 04:10:59,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 04:10:59,309 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 350 transitions. [2023-11-19 04:10:59,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:10:59,310 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:59,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:59,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:10:59,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:10:59,513 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:10:59,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:59,513 INFO L85 PathProgramCache]: Analyzing trace with hash 474313333, now seen corresponding path program 1 times [2023-11-19 04:10:59,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:10:59,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948504646] [2023-11-19 04:10:59,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:59,514 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 04:10:59,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:10:59,516 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:10:59,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:10:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:59,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:10:59,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:10:59,825 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 04:10:59,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:10:59,825 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:10:59,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948504646] [2023-11-19 04:10:59,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948504646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:59,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:59,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:10:59,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452635984] [2023-11-19 04:10:59,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:59,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:10:59,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:10:59,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:10:59,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:10:59,829 INFO L87 Difference]: Start difference. First operand 269 states and 350 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 04:11:02,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:11:05,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:11:06,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:11:06,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:06,905 INFO L93 Difference]: Finished difference Result 361 states and 467 transitions. [2023-11-19 04:11:06,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:11:06,908 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 04:11:06,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:06,910 INFO L225 Difference]: With dead ends: 361 [2023-11-19 04:11:06,911 INFO L226 Difference]: Without dead ends: 359 [2023-11-19 04:11:06,911 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 04:11:06,912 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 152 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:06,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 678 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2023-11-19 04:11:06,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-11-19 04:11:06,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 355. [2023-11-19 04:11:06,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 344 states have (on average 1.302325581395349) internal successors, (448), 347 states have internal predecessors, (448), 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 04:11:06,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 462 transitions. [2023-11-19 04:11:06,936 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 462 transitions. Word has length 15 [2023-11-19 04:11:06,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:06,937 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 462 transitions. [2023-11-19 04:11:06,937 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 04:11:06,937 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 462 transitions. [2023-11-19 04:11:06,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 04:11:06,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:06,940 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 04:11:06,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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)] Ended with exit code 0 [2023-11-19 04:11:07,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:07,144 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:11:07,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:07,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1493637029, now seen corresponding path program 1 times [2023-11-19 04:11:07,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:07,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46092760] [2023-11-19 04:11:07,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:07,146 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 04:11:07,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:07,152 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:07,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:07,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:11:07,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:07,432 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 04:11:07,444 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:07,444 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:07,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46092760] [2023-11-19 04:11:07,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46092760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:07,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:11:07,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:11:07,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168608025] [2023-11-19 04:11:07,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:07,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:11:07,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:07,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:11:07,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:11:07,447 INFO L87 Difference]: Start difference. First operand 355 states and 462 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 04:11:07,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:07,607 INFO L93 Difference]: Finished difference Result 367 states and 450 transitions. [2023-11-19 04:11:07,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:11:07,608 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 04:11:07,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:07,611 INFO L225 Difference]: With dead ends: 367 [2023-11-19 04:11:07,611 INFO L226 Difference]: Without dead ends: 367 [2023-11-19 04:11:07,612 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 04:11:07,615 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 36 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 655 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 04:11:07,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 655 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:11:07,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-11-19 04:11:07,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 364. [2023-11-19 04:11:07,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 353 states have (on average 1.226628895184136) internal successors, (433), 356 states have internal predecessors, (433), 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 04:11:07,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 447 transitions. [2023-11-19 04:11:07,647 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 447 transitions. Word has length 51 [2023-11-19 04:11:07,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:07,647 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 447 transitions. [2023-11-19 04:11:07,647 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 04:11:07,648 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 447 transitions. [2023-11-19 04:11:07,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 04:11:07,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:07,653 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 04:11:07,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:07,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:07,865 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:11:07,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:07,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1908813721, now seen corresponding path program 1 times [2023-11-19 04:11:07,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:07,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165079930] [2023-11-19 04:11:07,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:07,867 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 04:11:07,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:07,868 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:07,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:08,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 04:11:08,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:08,158 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:11:08,158 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:11:08,159 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:11:08,167 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 04:11:08,267 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:11:08,267 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 04:11:08,347 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 04:11:08,347 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:08,348 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:08,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165079930] [2023-11-19 04:11:08,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165079930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:08,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:11:08,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:11:08,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853725971] [2023-11-19 04:11:08,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:08,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:11:08,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:08,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:11:08,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:11:08,351 INFO L87 Difference]: Start difference. First operand 364 states and 447 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 04:11:12,587 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 04:11:15,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:15,220 INFO L93 Difference]: Finished difference Result 318 states and 394 transitions. [2023-11-19 04:11:15,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:11:15,221 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 04:11:15,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:15,224 INFO L225 Difference]: With dead ends: 318 [2023-11-19 04:11:15,224 INFO L226 Difference]: Without dead ends: 315 [2023-11-19 04:11:15,224 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 04:11:15,225 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 52 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:15,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 843 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2023-11-19 04:11:15,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-19 04:11:15,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2023-11-19 04:11:15,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 305 states have (on average 1.2426229508196722) internal successors, (379), 308 states have internal predecessors, (379), 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 04:11:15,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 391 transitions. [2023-11-19 04:11:15,239 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 391 transitions. Word has length 51 [2023-11-19 04:11:15,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:15,239 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 391 transitions. [2023-11-19 04:11:15,240 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 04:11:15,240 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 391 transitions. [2023-11-19 04:11:15,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 04:11:15,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:15,243 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] [2023-11-19 04:11:15,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:15,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:15,449 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:11:15,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:15,449 INFO L85 PathProgramCache]: Analyzing trace with hash 551201623, now seen corresponding path program 1 times [2023-11-19 04:11:15,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:15,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965456594] [2023-11-19 04:11:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:15,451 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 04:11:15,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:15,453 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:15,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:16,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:11:16,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:16,094 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 04:11:16,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:16,095 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:16,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965456594] [2023-11-19 04:11:16,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1965456594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:16,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:11:16,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:11:16,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103559951] [2023-11-19 04:11:16,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:16,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:11:16,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:16,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:11:16,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:11:16,098 INFO L87 Difference]: Start difference. First operand 315 states and 391 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:11:16,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:16,254 INFO L93 Difference]: Finished difference Result 323 states and 383 transitions. [2023-11-19 04:11:16,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:11:16,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2023-11-19 04:11:16,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:16,257 INFO L225 Difference]: With dead ends: 323 [2023-11-19 04:11:16,257 INFO L226 Difference]: Without dead ends: 323 [2023-11-19 04:11:16,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 04:11:16,259 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 43 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 619 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 04:11:16,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 619 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:11:16,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-11-19 04:11:16,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 321. [2023-11-19 04:11:16,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 311 states have (on average 1.1864951768488745) internal successors, (369), 314 states have internal predecessors, (369), 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 04:11:16,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 381 transitions. [2023-11-19 04:11:16,272 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 381 transitions. Word has length 83 [2023-11-19 04:11:16,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:16,272 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 381 transitions. [2023-11-19 04:11:16,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:11:16,273 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 381 transitions. [2023-11-19 04:11:16,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 04:11:16,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:16,275 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] [2023-11-19 04:11:16,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:16,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:16,491 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:11:16,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:16,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1496677095, now seen corresponding path program 1 times [2023-11-19 04:11:16,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:16,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601423949] [2023-11-19 04:11:16,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:16,493 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 04:11:16,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:16,494 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:16,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:17,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:11:17,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:17,301 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 04:11:17,301 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:17,302 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:17,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601423949] [2023-11-19 04:11:17,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601423949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:17,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:11:17,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:11:17,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754132726] [2023-11-19 04:11:17,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:17,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:11:17,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:17,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:11:17,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:11:17,306 INFO L87 Difference]: Start difference. First operand 321 states and 381 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:11:17,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:17,448 INFO L93 Difference]: Finished difference Result 309 states and 361 transitions. [2023-11-19 04:11:17,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:11:17,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2023-11-19 04:11:17,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:17,452 INFO L225 Difference]: With dead ends: 309 [2023-11-19 04:11:17,452 INFO L226 Difference]: Without dead ends: 309 [2023-11-19 04:11:17,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 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 04:11:17,454 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 15 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 620 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 04:11:17,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 620 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:11:17,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-11-19 04:11:17,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2023-11-19 04:11:17,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 299 states have (on average 1.1672240802675586) internal successors, (349), 302 states have internal predecessors, (349), 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 04:11:17,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 361 transitions. [2023-11-19 04:11:17,466 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 361 transitions. Word has length 83 [2023-11-19 04:11:17,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:17,467 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 361 transitions. [2023-11-19 04:11:17,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:11:17,468 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 361 transitions. [2023-11-19 04:11:17,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 04:11:17,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:17,469 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] [2023-11-19 04:11:17,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:17,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:17,697 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:11:17,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:17,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1694577121, now seen corresponding path program 1 times [2023-11-19 04:11:17,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:17,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916253106] [2023-11-19 04:11:17,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:17,699 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 04:11:17,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:17,699 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:17,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:18,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:11:18,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:18,368 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 04:11:18,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:18,368 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:18,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916253106] [2023-11-19 04:11:18,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916253106] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:18,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:11:18,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:11:18,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019023239] [2023-11-19 04:11:18,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:18,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:11:18,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:18,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:11:18,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:11:18,372 INFO L87 Difference]: Start difference. First operand 309 states and 361 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 04:11:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:18,438 INFO L93 Difference]: Finished difference Result 312 states and 365 transitions. [2023-11-19 04:11:18,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:11:18,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2023-11-19 04:11:18,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:18,443 INFO L225 Difference]: With dead ends: 312 [2023-11-19 04:11:18,443 INFO L226 Difference]: Without dead ends: 312 [2023-11-19 04:11:18,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 04:11:18,444 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 2 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:18,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 677 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:11:18,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-19 04:11:18,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2023-11-19 04:11:18,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 301 states have (on average 1.169435215946844) internal successors, (352), 305 states have internal predecessors, (352), 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 04:11:18,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 365 transitions. [2023-11-19 04:11:18,456 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 365 transitions. Word has length 83 [2023-11-19 04:11:18,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:18,457 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 365 transitions. [2023-11-19 04:11:18,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 04:11:18,457 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 365 transitions. [2023-11-19 04:11:18,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-19 04:11:18,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:18,459 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] [2023-11-19 04:11:18,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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)] Ended with exit code 0 [2023-11-19 04:11:18,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:18,671 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:11:18,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:18,671 INFO L85 PathProgramCache]: Analyzing trace with hash -2096922689, now seen corresponding path program 1 times [2023-11-19 04:11:18,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:18,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [755157459] [2023-11-19 04:11:18,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:18,672 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 04:11:18,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:18,673 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:18,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:19,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:11:19,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:19,365 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 04:11:19,366 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:11:19,541 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 04:11:19,541 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:19,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [755157459] [2023-11-19 04:11:19,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [755157459] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:11:19,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1447727024] [2023-11-19 04:11:19,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:19,542 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:11:19,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:11:19,546 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:11:19,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-19 04:11:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:20,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:11:20,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 04:11:20,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:20,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1447727024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:20,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 04:11:20,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2023-11-19 04:11:20,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573247670] [2023-11-19 04:11:20,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:20,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:11:20,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:20,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:11:20,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-19 04:11:20,610 INFO L87 Difference]: Start difference. First operand 312 states and 365 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:11:23,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:11:25,423 WARN L539 Checker$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 04:11:28,981 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 04:11:30,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:30,097 INFO L93 Difference]: Finished difference Result 412 states and 487 transitions. [2023-11-19 04:11:30,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:11:30,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2023-11-19 04:11:30,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:30,104 INFO L225 Difference]: With dead ends: 412 [2023-11-19 04:11:30,105 INFO L226 Difference]: Without dead ends: 412 [2023-11-19 04:11:30,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-19 04:11:30,106 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 433 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:30,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 394 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 3 Unknown, 0 Unchecked, 9.4s Time] [2023-11-19 04:11:30,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2023-11-19 04:11:30,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 401. [2023-11-19 04:11:30,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 389 states have (on average 1.179948586118252) internal successors, (459), 394 states have internal predecessors, (459), 7 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-19 04:11:30,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 474 transitions. [2023-11-19 04:11:30,122 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 474 transitions. Word has length 85 [2023-11-19 04:11:30,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:30,123 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 474 transitions. [2023-11-19 04:11:30,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:11:30,124 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 474 transitions. [2023-11-19 04:11:30,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-19 04:11:30,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:30,125 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 04:11:30,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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)] Forceful destruction successful, exit code 0 [2023-11-19 04:11:30,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-19 04:11:30,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt [2023-11-19 04:11:30,536 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:11:30,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:30,537 INFO L85 PathProgramCache]: Analyzing trace with hash 961335222, now seen corresponding path program 1 times [2023-11-19 04:11:30,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:30,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515814374] [2023-11-19 04:11:30,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:30,538 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 04:11:30,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:30,539 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 04:11:30,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/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 (12)] Waiting until timeout for monitored process [2023-11-19 04:11:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:31,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:11:31,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:31,254 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 04:11:31,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:11:31,383 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 04:11:31,383 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:31,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515814374] [2023-11-19 04:11:31,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515814374] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:11:31,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [536287283] [2023-11-19 04:11:31,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:31,384 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:11:31,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:11:31,386 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:11:31,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114ffb8e-db16-40ea-8043-af60793223c8/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process