./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a0165632 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_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje --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 be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:10:02,262 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:10:02,376 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-09 05:10:02,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:10:02,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:10:02,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:10:02,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:10:02,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:10:02,423 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:10:02,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:10:02,425 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:10:02,425 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:10:02,426 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:10:02,428 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:10:02,429 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:10:02,430 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:10:02,430 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:10:02,431 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:10:02,431 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:10:02,432 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:10:02,435 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:10:02,436 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:10:02,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:10:02,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:10:02,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:10:02,438 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:10:02,439 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:10:02,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:10:02,439 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:10:02,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:10:02,442 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:10:02,442 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:10:02,443 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:10:02,444 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:10:02,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:10:02,445 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:10:02,445 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:10:02,446 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:10:02,446 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:10:02,446 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:10:02,447 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:10:02,447 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:10:02,448 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:10:02,448 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:10:02,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:10:02,449 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:10:02,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:10:02,450 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:10:02,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:10:02,451 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:10:02,451 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:10:02,451 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:10:02,452 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_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-09 05:10:02,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:10:02,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:10:02,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:10:02,823 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:10:02,823 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:10:02,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i Unable to find full path for "g++" [2024-11-09 05:10:05,118 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:10:05,573 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:10:05,574 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i [2024-11-09 05:10:05,600 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/data/7204a2746/6c67691a5d7844e694a6e8a9a1cc3111/FLAGb3312fab0 [2024-11-09 05:10:05,707 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/data/7204a2746/6c67691a5d7844e694a6e8a9a1cc3111 [2024-11-09 05:10:05,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:10:05,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:10:05,714 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:10:05,715 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:10:05,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:10:05,730 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:10:05" (1/1) ... [2024-11-09 05:10:05,732 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204d1413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:05, skipping insertion in model container [2024-11-09 05:10:05,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:10:05" (1/1) ... [2024-11-09 05:10:05,795 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:10:06,472 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,540 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,548 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,553 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,568 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,640 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,641 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,645 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,645 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,649 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,651 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,653 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,654 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,660 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,662 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,665 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,666 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,668 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,669 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,675 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:06,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:10:06,718 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-09 05:10:06,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@15b059ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:06, skipping insertion in model container [2024-11-09 05:10:06,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:10:06,720 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 05:10:06,724 INFO L158 Benchmark]: Toolchain (without parser) took 1009.83ms. Allocated memory is still 155.2MB. Free memory was 118.6MB in the beginning and 94.2MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 05:10:06,724 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 98.6MB. Free memory is still 49.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:10:06,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1005.85ms. Allocated memory is still 155.2MB. Free memory was 118.6MB in the beginning and 94.2MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 05:10:06,728 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 98.6MB. Free memory is still 49.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1005.85ms. Allocated memory is still 155.2MB. Free memory was 118.6MB in the beginning and 94.2MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: 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_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje --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 be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:10:09,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:10:09,453 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-09 05:10:09,480 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:10:09,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:10:09,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:10:09,533 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:10:09,534 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:10:09,534 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:10:09,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:10:09,535 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:10:09,536 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:10:09,537 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:10:09,539 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:10:09,540 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:10:09,540 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:10:09,541 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:10:09,541 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:10:09,545 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:10:09,545 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:10:09,546 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:10:09,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:10:09,547 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:10:09,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:10:09,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:10:09,548 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:10:09,548 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:10:09,548 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:10:09,549 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:10:09,549 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:10:09,549 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:10:09,553 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:10:09,553 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:10:09,553 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:10:09,553 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:10:09,554 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:10:09,555 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:10:09,555 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:10:09,555 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:10:09,555 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:10:09,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:10:09,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:10:09,557 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:10:09,557 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:10:09,557 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:10:09,558 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:10:09,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:10:09,558 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:10:09,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-09 05:10:09,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:10:10,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:10:10,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:10:10,035 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:10:10,036 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:10:10,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i Unable to find full path for "g++" [2024-11-09 05:10:12,484 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:10:12,924 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:10:12,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i [2024-11-09 05:10:12,954 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/data/4da30e6d2/f08fabb11c524dbe93547a8049424b1e/FLAGca845a5c8 [2024-11-09 05:10:12,978 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/data/4da30e6d2/f08fabb11c524dbe93547a8049424b1e [2024-11-09 05:10:12,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:10:12,982 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:10:12,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:10:12,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:10:12,991 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:10:12,992 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:10:12" (1/1) ... [2024-11-09 05:10:12,993 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e39e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:12, skipping insertion in model container [2024-11-09 05:10:12,993 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:10:12" (1/1) ... [2024-11-09 05:10:13,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:10:13,823 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:13,888 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:13,898 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:13,908 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:13,922 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:13,984 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:13,985 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:13,992 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:13,994 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:13,999 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,004 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,008 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,010 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,021 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,027 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,029 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,034 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,036 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,039 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,048 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:10:14,085 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 05:10:14,102 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:10:14,140 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,163 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,165 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,168 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,176 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,210 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,211 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,213 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,214 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,216 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,217 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,218 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,219 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,223 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,224 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,226 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,227 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,228 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,229 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,232 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:10:14,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:10:14,265 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:10:14,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:10:14,436 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:10:14,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:14 WrapperNode [2024-11-09 05:10:14,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:10:14,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:10:14,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:10:14,439 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:10:14,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:14" (1/1) ... [2024-11-09 05:10:14,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:14" (1/1) ... [2024-11-09 05:10:14,562 INFO L138 Inliner]: procedures = 180, calls = 325, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1149 [2024-11-09 05:10:14,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:10:14,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:10:14,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:10:14,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:10:14,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:14" (1/1) ... [2024-11-09 05:10:14,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:14" (1/1) ... [2024-11-09 05:10:14,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:14" (1/1) ... [2024-11-09 05:10:14,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:14" (1/1) ... [2024-11-09 05:10:14,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:14" (1/1) ... [2024-11-09 05:10:14,690 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:14" (1/1) ... [2024-11-09 05:10:14,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:14" (1/1) ... [2024-11-09 05:10:14,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:14" (1/1) ... [2024-11-09 05:10:14,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:10:14,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:10:14,735 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:10:14,736 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:10:14,737 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:14" (1/1) ... [2024-11-09 05:10:14,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:10:14,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:14,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:10:14,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:10:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 05:10:14,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 05:10:14,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:10:14,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:10:14,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:10:14,825 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:10:14,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:10:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:10:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:10:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:10:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:10:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 05:10:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:10:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:10:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:10:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:10:15,140 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:10:15,143 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:10:22,759 INFO L? ?]: Removed 143 outVars from TransFormulas that were not future-live. [2024-11-09 05:10:22,759 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:10:22,790 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:10:22,791 INFO L316 CfgBuilder]: Removed 66 assume(true) statements. [2024-11-09 05:10:22,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:10:22 BoogieIcfgContainer [2024-11-09 05:10:22,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:10:22,794 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:10:22,794 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:10:22,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:10:22,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:10:12" (1/3) ... [2024-11-09 05:10:22,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48637808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:10:22, skipping insertion in model container [2024-11-09 05:10:22,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:14" (2/3) ... [2024-11-09 05:10:22,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48637808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:10:22, skipping insertion in model container [2024-11-09 05:10:22,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:10:22" (3/3) ... [2024-11-09 05:10:22,801 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test3-2.i [2024-11-09 05:10:22,823 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:10:22,823 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 05:10:22,891 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:10:22,899 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@75239735, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:10:22,899 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 05:10:22,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 237 states, 227 states have (on average 1.6475770925110131) internal successors, (374), 230 states have internal predecessors, (374), 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) [2024-11-09 05:10:22,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 05:10:22,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:22,912 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 05:10:22,913 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:10:22,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:22,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1172753, now seen corresponding path program 1 times [2024-11-09 05:10:22,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:10:22,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201202387] [2024-11-09 05:10:22,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:22,936 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:22,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:10:22,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:10:22,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 05:10:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:23,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:10:23,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:23,290 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_16| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16|)))) is different from true [2024-11-09 05:10:23,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:10:23,292 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:10:23,293 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:10:23,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201202387] [2024-11-09 05:10:23,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201202387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:23,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:10:23,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:10:23,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923913470] [2024-11-09 05:10:23,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:23,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:10:23,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:10:23,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:10:23,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-09 05:10:23,341 INFO L87 Difference]: Start difference. First operand has 237 states, 227 states have (on average 1.6475770925110131) internal successors, (374), 230 states have internal predecessors, (374), 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) [2024-11-09 05:10:25,665 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 [] [2024-11-09 05:10:25,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:25,948 INFO L93 Difference]: Finished difference Result 363 states and 485 transitions. [2024-11-09 05:10:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:10:25,961 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 [2024-11-09 05:10:25,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:25,974 INFO L225 Difference]: With dead ends: 363 [2024-11-09 05:10:25,974 INFO L226 Difference]: Without dead ends: 360 [2024-11-09 05:10:25,976 INFO L431 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 [2024-11-09 05:10:25,980 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 164 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 486 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:25,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 591 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 1 Unknown, 486 Unchecked, 2.5s Time] [2024-11-09 05:10:26,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-09 05:10:26,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 234. [2024-11-09 05:10:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 225 states have (on average 1.3244444444444445) internal successors, (298), 227 states have internal predecessors, (298), 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) [2024-11-09 05:10:26,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 308 transitions. [2024-11-09 05:10:26,052 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 308 transitions. Word has length 4 [2024-11-09 05:10:26,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:26,053 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 308 transitions. [2024-11-09 05:10:26,053 INFO L472 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) [2024-11-09 05:10:26,053 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 308 transitions. [2024-11-09 05:10:26,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 05:10:26,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:26,056 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:26,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 05:10:26,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:26,257 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:10:26,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:26,258 INFO L85 PathProgramCache]: Analyzing trace with hash 976075094, now seen corresponding path program 1 times [2024-11-09 05:10:26,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:10:26,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401904131] [2024-11-09 05:10:26,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:26,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:26,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:10:26,263 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:10:26,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 05:10:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:26,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:10:26,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:26,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:10:26,636 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:10:26,636 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:10:26,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401904131] [2024-11-09 05:10:26,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401904131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:26,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:10:26,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:10:26,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136677735] [2024-11-09 05:10:26,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:26,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:10:26,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:10:26,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:10:26,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:10:26,641 INFO L87 Difference]: Start difference. First operand 234 states and 308 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:10:29,035 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 [] [2024-11-09 05:10:31,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:31,518 INFO L93 Difference]: Finished difference Result 383 states and 505 transitions. [2024-11-09 05:10:31,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:10:31,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 16 [2024-11-09 05:10:31,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:31,524 INFO L225 Difference]: With dead ends: 383 [2024-11-09 05:10:31,524 INFO L226 Difference]: Without dead ends: 383 [2024-11-09 05:10:31,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:10:31,526 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 187 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:31,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 863 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 118 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2024-11-09 05:10:31,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-09 05:10:31,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 351. [2024-11-09 05:10:31,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 341 states have (on average 1.3225806451612903) internal successors, (451), 344 states have internal predecessors, (451), 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) [2024-11-09 05:10:31,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 463 transitions. [2024-11-09 05:10:31,563 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 463 transitions. Word has length 16 [2024-11-09 05:10:31,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:31,564 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 463 transitions. [2024-11-09 05:10:31,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:10:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 463 transitions. [2024-11-09 05:10:31,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 05:10:31,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:31,565 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:31,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 05:10:31,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:31,766 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:10:31,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:31,767 INFO L85 PathProgramCache]: Analyzing trace with hash 404199381, now seen corresponding path program 1 times [2024-11-09 05:10:31,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:10:31,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269637688] [2024-11-09 05:10:31,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:31,768 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:31,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:10:31,769 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:10:31,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 05:10:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:32,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:10:32,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:32,287 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_17| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17|)))) is different from true [2024-11-09 05:10:32,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:10:32,288 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:10:32,289 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:10:32,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269637688] [2024-11-09 05:10:32,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269637688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:32,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:10:32,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:10:32,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83320580] [2024-11-09 05:10:32,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:32,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:10:32,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:10:32,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:10:32,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-09 05:10:32,292 INFO L87 Difference]: Start difference. First operand 351 states and 463 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:10:34,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:10:36,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:10:36,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:36,073 INFO L93 Difference]: Finished difference Result 445 states and 584 transitions. [2024-11-09 05:10:36,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:10:36,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-09 05:10:36,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:36,085 INFO L225 Difference]: With dead ends: 445 [2024-11-09 05:10:36,085 INFO L226 Difference]: Without dead ends: 437 [2024-11-09 05:10:36,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-09 05:10:36,087 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 88 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 412 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:36,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 587 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 412 Unchecked, 3.8s Time] [2024-11-09 05:10:36,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-09 05:10:36,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 397. [2024-11-09 05:10:36,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 386 states have (on average 1.3212435233160622) internal successors, (510), 389 states have internal predecessors, (510), 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) [2024-11-09 05:10:36,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 524 transitions. [2024-11-09 05:10:36,147 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 524 transitions. Word has length 16 [2024-11-09 05:10:36,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:36,148 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 524 transitions. [2024-11-09 05:10:36,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:10:36,148 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 524 transitions. [2024-11-09 05:10:36,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 05:10:36,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:36,151 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:36,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 05:10:36,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:36,355 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:10:36,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:36,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1347631372, now seen corresponding path program 1 times [2024-11-09 05:10:36,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:10:36,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448845911] [2024-11-09 05:10:36,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:36,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:36,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:10:36,359 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:10:36,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 05:10:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:36,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:10:36,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:36,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:10:36,673 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:10:36,673 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:10:36,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448845911] [2024-11-09 05:10:36,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448845911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:36,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:10:36,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:10:36,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071241407] [2024-11-09 05:10:36,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:36,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:10:36,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:10:36,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:10:36,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:10:36,677 INFO L87 Difference]: Start difference. First operand 397 states and 524 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) [2024-11-09 05:10:36,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:36,880 INFO L93 Difference]: Finished difference Result 403 states and 503 transitions. [2024-11-09 05:10:36,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:10:36,882 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 [2024-11-09 05:10:36,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:36,884 INFO L225 Difference]: With dead ends: 403 [2024-11-09 05:10:36,884 INFO L226 Difference]: Without dead ends: 403 [2024-11-09 05:10:36,885 INFO L431 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 [2024-11-09 05:10:36,887 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 30 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:36,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 809 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:10:36,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-09 05:10:36,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-09 05:10:36,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 392 states have (on average 1.2474489795918366) internal successors, (489), 395 states have internal predecessors, (489), 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) [2024-11-09 05:10:36,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 503 transitions. [2024-11-09 05:10:36,921 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 503 transitions. Word has length 51 [2024-11-09 05:10:36,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:36,922 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 503 transitions. [2024-11-09 05:10:36,922 INFO L472 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) [2024-11-09 05:10:36,922 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 503 transitions. [2024-11-09 05:10:36,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 05:10:36,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:36,924 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:36,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-09 05:10:37,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:37,126 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:10:37,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:37,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1550088064, now seen corresponding path program 1 times [2024-11-09 05:10:37,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:10:37,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1867623750] [2024-11-09 05:10:37,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:37,128 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:37,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:10:37,131 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:10:37,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 05:10:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:37,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 05:10:37,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:37,517 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:10:37,518 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:10:37,519 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:10:37,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-09 05:10:37,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:10:37,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-09 05:10:37,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:10:37,773 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:10:37,773 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:10:37,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1867623750] [2024-11-09 05:10:37,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1867623750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:37,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:10:37,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:10:37,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666291454] [2024-11-09 05:10:37,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:37,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:10:37,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:10:37,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:10:37,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:10:37,776 INFO L87 Difference]: Start difference. First operand 403 states and 503 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) [2024-11-09 05:10:42,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:10:45,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:45,756 INFO L93 Difference]: Finished difference Result 357 states and 450 transitions. [2024-11-09 05:10:45,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:10:45,758 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 [2024-11-09 05:10:45,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:45,759 INFO L225 Difference]: With dead ends: 357 [2024-11-09 05:10:45,760 INFO L226 Difference]: Without dead ends: 354 [2024-11-09 05:10:45,760 INFO L431 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 [2024-11-09 05:10:45,761 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 54 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:45,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1034 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2024-11-09 05:10:45,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-09 05:10:45,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2024-11-09 05:10:45,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 344 states have (on average 1.2645348837209303) internal successors, (435), 347 states have internal predecessors, (435), 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) [2024-11-09 05:10:45,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 447 transitions. [2024-11-09 05:10:45,778 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 447 transitions. Word has length 51 [2024-11-09 05:10:45,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:45,779 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 447 transitions. [2024-11-09 05:10:45,779 INFO L472 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) [2024-11-09 05:10:45,779 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 447 transitions. [2024-11-09 05:10:45,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 05:10:45,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:45,787 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:45,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:10:45,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:45,988 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:10:45,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:45,989 INFO L85 PathProgramCache]: Analyzing trace with hash 334973826, now seen corresponding path program 1 times [2024-11-09 05:10:45,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:10:45,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251148077] [2024-11-09 05:10:45,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:45,991 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:45,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:10:45,995 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:10:45,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 05:10:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:46,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:10:46,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:46,766 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:10:46,767 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:10:46,767 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:10:46,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251148077] [2024-11-09 05:10:46,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251148077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:46,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:10:46,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:10:46,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799301781] [2024-11-09 05:10:46,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:46,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:10:46,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:10:46,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:10:46,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:10:46,772 INFO L87 Difference]: Start difference. First operand 354 states and 447 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:10:46,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:46,936 INFO L93 Difference]: Finished difference Result 358 states and 433 transitions. [2024-11-09 05:10:46,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:10:46,937 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2024-11-09 05:10:46,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:46,939 INFO L225 Difference]: With dead ends: 358 [2024-11-09 05:10:46,939 INFO L226 Difference]: Without dead ends: 358 [2024-11-09 05:10:46,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:10:46,940 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 33 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:46,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 767 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:10:46,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-09 05:10:46,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2024-11-09 05:10:46,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 348 states have (on average 1.2097701149425288) internal successors, (421), 351 states have internal predecessors, (421), 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) [2024-11-09 05:10:46,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 433 transitions. [2024-11-09 05:10:46,952 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 433 transitions. Word has length 87 [2024-11-09 05:10:46,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:46,953 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 433 transitions. [2024-11-09 05:10:46,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:10:46,953 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 433 transitions. [2024-11-09 05:10:46,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 05:10:46,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:46,955 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:46,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-09 05:10:47,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:47,156 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:10:47,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:47,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1973968620, now seen corresponding path program 1 times [2024-11-09 05:10:47,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:10:47,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155231618] [2024-11-09 05:10:47,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:47,158 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:47,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:10:47,162 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:10:47,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-09 05:10:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:47,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:10:47,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:10:48,008 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:10:48,008 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:10:48,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155231618] [2024-11-09 05:10:48,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155231618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:48,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:10:48,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:10:48,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608187806] [2024-11-09 05:10:48,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:48,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:10:48,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:10:48,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:10:48,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:10:48,011 INFO L87 Difference]: Start difference. First operand 358 states and 433 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:10:48,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:48,161 INFO L93 Difference]: Finished difference Result 346 states and 413 transitions. [2024-11-09 05:10:48,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:10:48,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2024-11-09 05:10:48,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:48,164 INFO L225 Difference]: With dead ends: 346 [2024-11-09 05:10:48,164 INFO L226 Difference]: Without dead ends: 346 [2024-11-09 05:10:48,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:10:48,165 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 6 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:48,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 767 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:10:48,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-09 05:10:48,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2024-11-09 05:10:48,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 336 states have (on average 1.193452380952381) internal successors, (401), 339 states have internal predecessors, (401), 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) [2024-11-09 05:10:48,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 413 transitions. [2024-11-09 05:10:48,177 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 413 transitions. Word has length 87 [2024-11-09 05:10:48,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:48,178 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 413 transitions. [2024-11-09 05:10:48,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:10:48,178 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 413 transitions. [2024-11-09 05:10:48,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 05:10:48,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:48,180 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:48,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:10:48,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:48,381 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:10:48,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:48,382 INFO L85 PathProgramCache]: Analyzing trace with hash -887403762, now seen corresponding path program 1 times [2024-11-09 05:10:48,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:10:48,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1399662704] [2024-11-09 05:10:48,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:48,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:48,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:10:48,387 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:10:48,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 05:10:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:49,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:10:49,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:49,196 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:10:49,196 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:10:49,196 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:10:49,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1399662704] [2024-11-09 05:10:49,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1399662704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:49,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:10:49,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:10:49,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741384844] [2024-11-09 05:10:49,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:49,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:10:49,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:10:49,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:10:49,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:10:49,199 INFO L87 Difference]: Start difference. First operand 346 states and 413 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:10:49,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:49,266 INFO L93 Difference]: Finished difference Result 349 states and 417 transitions. [2024-11-09 05:10:49,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:10:49,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 87 [2024-11-09 05:10:49,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:49,270 INFO L225 Difference]: With dead ends: 349 [2024-11-09 05:10:49,271 INFO L226 Difference]: Without dead ends: 349 [2024-11-09 05:10:49,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:10:49,272 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 0 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:49,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 821 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:10:49,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-09 05:10:49,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-11-09 05:10:49,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 338 states have (on average 1.1952662721893492) internal successors, (404), 342 states have internal predecessors, (404), 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) [2024-11-09 05:10:49,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 417 transitions. [2024-11-09 05:10:49,286 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 417 transitions. Word has length 87 [2024-11-09 05:10:49,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:49,289 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 417 transitions. [2024-11-09 05:10:49,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:10:49,290 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 417 transitions. [2024-11-09 05:10:49,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 05:10:49,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:49,292 INFO L215 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, 1] [2024-11-09 05:10:49,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-09 05:10:49,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:49,493 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:10:49,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:49,493 INFO L85 PathProgramCache]: Analyzing trace with hash 785034796, now seen corresponding path program 1 times [2024-11-09 05:10:49,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:10:49,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144285544] [2024-11-09 05:10:49,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:49,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:49,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:10:49,495 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:10:49,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-09 05:10:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:50,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:10:50,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:50,174 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:10:50,175 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:10:50,315 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:10:50,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144285544] [2024-11-09 05:10:50,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144285544] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:50,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [331278301] [2024-11-09 05:10:50,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:50,327 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:10:50,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:10:50,332 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:10:50,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-09 05:10:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:51,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:10:51,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:51,546 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:10:51,546 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:51,626 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:10:51,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [331278301] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:51,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574938827] [2024-11-09 05:10:51,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:51,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:51,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:51,630 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:51,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 05:10:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:52,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:10:52,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:52,404 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:10:52,405 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:10:52,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574938827] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:52,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:10:52,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2024-11-09 05:10:52,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696097001] [2024-11-09 05:10:52,593 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:10:52,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:10:52,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:10:52,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:10:52,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:10:52,595 INFO L87 Difference]: Start difference. First operand 349 states and 417 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:10:53,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:53,275 INFO L93 Difference]: Finished difference Result 364 states and 439 transitions. [2024-11-09 05:10:53,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:10:53,276 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2024-11-09 05:10:53,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:53,278 INFO L225 Difference]: With dead ends: 364 [2024-11-09 05:10:53,279 INFO L226 Difference]: Without dead ends: 364 [2024-11-09 05:10:53,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:10:53,280 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 12 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1894 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:53,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1894 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:10:53,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-09 05:10:53,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 360. [2024-11-09 05:10:53,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 348 states have (on average 1.2126436781609196) internal successors, (422), 352 states have internal predecessors, (422), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 05:10:53,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 435 transitions. [2024-11-09 05:10:53,292 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 435 transitions. Word has length 89 [2024-11-09 05:10:53,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:53,293 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 435 transitions. [2024-11-09 05:10:53,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:10:53,293 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 435 transitions. [2024-11-09 05:10:53,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 05:10:53,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:53,295 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:53,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-09 05:10:53,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 05:10:53,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-09 05:10:53,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:10:53,896 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:10:53,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:53,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1615044238, now seen corresponding path program 2 times [2024-11-09 05:10:53,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:10:53,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436662130] [2024-11-09 05:10:53,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:10:53,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:10:53,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:10:53,900 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:10:53,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-09 05:10:54,811 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:10:54,811 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:10:54,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:10:54,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:10:55,023 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:55,357 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:10:55,357 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:10:55,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436662130] [2024-11-09 05:10:55,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [436662130] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:55,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [220620685] [2024-11-09 05:10:55,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:10:55,359 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:10:55,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:10:55,362 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:10:55,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-09 05:10:56,622 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:10:56,622 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:10:56,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:10:56,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:56,682 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:10:56,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:56,837 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:10:56,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [220620685] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:56,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927926966] [2024-11-09 05:10:56,838 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:10:56,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:56,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:56,840 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:56,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 05:10:57,664 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:10:57,664 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:10:57,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:10:57,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:58,546 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:10:58,547 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:10:58,548 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:10:58,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-09 05:10:58,762 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:10:58,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-09 05:10:58,865 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 05:10:58,865 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:10:58,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927926966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:58,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-09 05:10:58,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 8, 8] total 18 [2024-11-09 05:10:58,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991404410] [2024-11-09 05:10:58,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:58,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:10:58,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:10:58,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:10:58,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-11-09 05:10:58,869 INFO L87 Difference]: Start difference. First operand 360 states and 435 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:11:01,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:11:04,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:04,403 INFO L93 Difference]: Finished difference Result 454 states and 554 transitions. [2024-11-09 05:11:04,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:11:04,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 95 [2024-11-09 05:11:04,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:04,407 INFO L225 Difference]: With dead ends: 454 [2024-11-09 05:11:04,407 INFO L226 Difference]: Without dead ends: 454 [2024-11-09 05:11:04,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:11:04,408 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 372 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:04,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 731 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2024-11-09 05:11:04,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-09 05:11:04,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 362. [2024-11-09 05:11:04,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 350 states have (on average 1.2114285714285715) internal successors, (424), 354 states have internal predecessors, (424), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-09 05:11:04,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 437 transitions. [2024-11-09 05:11:04,423 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 437 transitions. Word has length 95 [2024-11-09 05:11:04,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:04,424 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 437 transitions. [2024-11-09 05:11:04,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:11:04,424 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 437 transitions. [2024-11-09 05:11:04,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 05:11:04,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:04,427 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:04,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-09 05:11:04,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 05:11:04,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-09 05:11:05,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:05,028 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:11:05,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:05,028 INFO L85 PathProgramCache]: Analyzing trace with hash 292603720, now seen corresponding path program 1 times [2024-11-09 05:11:05,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:11:05,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820489734] [2024-11-09 05:11:05,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:05,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:05,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:11:05,034 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:11:05,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/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 (16)] Waiting until timeout for monitored process [2024-11-09 05:11:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:05,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:11:05,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:06,013 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:11:06,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:06,402 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:11:06,402 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:11:06,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820489734] [2024-11-09 05:11:06,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820489734] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:11:06,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [274010702] [2024-11-09 05:11:06,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:06,403 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:11:06,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:11:06,407 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:11:06,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-09 05:11:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:07,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:11:07,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:07,949 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 05:11:07,950 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:11:07,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [274010702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:11:07,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:11:07,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 16 [2024-11-09 05:11:07,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574875745] [2024-11-09 05:11:07,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:11:07,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:11:07,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:11:07,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:11:07,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:11:07,953 INFO L87 Difference]: Start difference. First operand 362 states and 437 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:11:10,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:11:12,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:11:16,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:16,126 INFO L93 Difference]: Finished difference Result 535 states and 657 transitions. [2024-11-09 05:11:16,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:11:16,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 130 [2024-11-09 05:11:16,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:16,132 INFO L225 Difference]: With dead ends: 535 [2024-11-09 05:11:16,132 INFO L226 Difference]: Without dead ends: 535 [2024-11-09 05:11:16,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:11:16,134 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 534 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:16,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 587 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 143 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2024-11-09 05:11:16,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-09 05:11:16,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 462. [2024-11-09 05:11:16,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 448 states have (on average 1.2142857142857142) internal successors, (544), 453 states have internal predecessors, (544), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 05:11:16,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 561 transitions. [2024-11-09 05:11:16,156 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 561 transitions. Word has length 130 [2024-11-09 05:11:16,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:16,157 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 561 transitions. [2024-11-09 05:11:16,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:11:16,157 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 561 transitions. [2024-11-09 05:11:16,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-09 05:11:16,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:16,160 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:16,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/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 (16)] Forceful destruction successful, exit code 0 [2024-11-09 05:11:16,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2024-11-09 05:11:16,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:11:16,561 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:11:16,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:16,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1512439863, now seen corresponding path program 1 times [2024-11-09 05:11:16,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:11:16,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543099179] [2024-11-09 05:11:16,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:16,562 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:16,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:11:16,563 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:11:16,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-09 05:11:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:17,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:11:17,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:11:17,694 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:18,159 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:11:18,160 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:11:18,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543099179] [2024-11-09 05:11:18,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543099179] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:11:18,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [778588282] [2024-11-09 05:11:18,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:18,161 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:11:18,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:11:18,164 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:11:18,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-09 05:11:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:19,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:11:19,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:19,585 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:11:19,586 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:19,754 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:11:19,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [778588282] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:11:19,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686151465] [2024-11-09 05:11:19,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:19,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:11:19,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:19,757 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:11:19,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 05:11:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:20,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:11:20,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:20,665 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:11:20,666 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:21,169 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:11:21,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686151465] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:11:21,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:11:21,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 20 [2024-11-09 05:11:21,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622555525] [2024-11-09 05:11:21,171 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:11:21,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 05:11:21,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:11:21,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 05:11:21,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:11:21,174 INFO L87 Difference]: Start difference. First operand 462 states and 561 transitions. Second operand has 20 states, 20 states have (on average 7.45) internal successors, (149), 20 states have internal predecessors, (149), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:11:22,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:22,142 INFO L93 Difference]: Finished difference Result 475 states and 578 transitions. [2024-11-09 05:11:22,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 05:11:22,144 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.45) internal successors, (149), 20 states have internal predecessors, (149), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 138 [2024-11-09 05:11:22,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:22,146 INFO L225 Difference]: With dead ends: 475 [2024-11-09 05:11:22,147 INFO L226 Difference]: Without dead ends: 469 [2024-11-09 05:11:22,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 831 GetRequests, 804 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=292, Invalid=520, Unknown=0, NotChecked=0, Total=812 [2024-11-09 05:11:22,148 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 7 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:22,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1920 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:11:22,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-09 05:11:22,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2024-11-09 05:11:22,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 455 states have (on average 1.210989010989011) internal successors, (551), 460 states have internal predecessors, (551), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 05:11:22,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 568 transitions. [2024-11-09 05:11:22,164 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 568 transitions. Word has length 138 [2024-11-09 05:11:22,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:22,164 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 568 transitions. [2024-11-09 05:11:22,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.45) internal successors, (149), 20 states have internal predecessors, (149), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:11:22,165 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 568 transitions. [2024-11-09 05:11:22,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-09 05:11:22,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:22,167 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:22,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-09 05:11:22,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-11-09 05:11:22,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-09 05:11:22,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:22,769 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:11:22,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:22,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1555278221, now seen corresponding path program 2 times [2024-11-09 05:11:22,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:11:22,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354229937] [2024-11-09 05:11:22,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:11:22,771 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:22,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:11:22,772 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:11:22,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-09 05:11:23,858 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:11:23,859 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:11:23,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:11:23,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:24,360 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 05:11:24,360 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:25,722 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:11:25,722 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:11:25,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354229937] [2024-11-09 05:11:25,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354229937] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:11:25,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2077740728] [2024-11-09 05:11:25,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:11:25,723 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:11:25,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:11:25,725 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:11:25,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-09 05:11:28,539 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:11:28,539 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:11:28,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:11:28,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:28,655 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 05:11:28,655 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 05:11:28,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2077740728] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:11:28,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910821278] [2024-11-09 05:11:28,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:11:28,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:11:28,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:28,942 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:11:28,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 05:11:29,888 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:11:29,888 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:11:29,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:11:29,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:30,075 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 05:11:30,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:30,803 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 05:11:30,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910821278] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:11:30,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:11:30,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 9, 9] total 35 [2024-11-09 05:11:30,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50508224] [2024-11-09 05:11:30,804 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:11:30,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-09 05:11:30,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:11:30,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-09 05:11:30,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=862, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 05:11:30,807 INFO L87 Difference]: Start difference. First operand 469 states and 568 transitions. Second operand has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 35 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:11:34,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:34,823 INFO L93 Difference]: Finished difference Result 503 states and 623 transitions. [2024-11-09 05:11:34,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-09 05:11:34,824 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 35 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 145 [2024-11-09 05:11:34,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:34,826 INFO L225 Difference]: With dead ends: 503 [2024-11-09 05:11:34,826 INFO L226 Difference]: Without dead ends: 497 [2024-11-09 05:11:34,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 904 GetRequests, 831 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1393, Invalid=4157, Unknown=0, NotChecked=0, Total=5550 [2024-11-09 05:11:34,828 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 43 mSDsluCounter, 4602 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 4877 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:34,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 4877 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 05:11:34,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-09 05:11:34,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 493. [2024-11-09 05:11:34,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 479 states have (on average 1.2233820459290188) internal successors, (586), 484 states have internal predecessors, (586), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 05:11:34,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 603 transitions. [2024-11-09 05:11:34,840 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 603 transitions. Word has length 145 [2024-11-09 05:11:34,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:34,840 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 603 transitions. [2024-11-09 05:11:34,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.742857142857143) internal successors, (166), 35 states have internal predecessors, (166), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:11:34,841 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 603 transitions. [2024-11-09 05:11:34,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-09 05:11:34,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:34,843 INFO L215 NwaCegarLoop]: trace histogram [39, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:34,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-09 05:11:35,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-09 05:11:35,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2024-11-09 05:11:35,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:11:35,444 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:11:35,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:35,445 INFO L85 PathProgramCache]: Analyzing trace with hash -716566285, now seen corresponding path program 3 times [2024-11-09 05:11:35,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:11:35,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937271662] [2024-11-09 05:11:35,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:11:35,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:35,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:11:35,447 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:11:35,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-09 05:11:40,746 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-09 05:11:40,746 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:11:40,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 05:11:40,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:41,559 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-09 05:11:41,559 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:44,711 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-09 05:11:44,712 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:11:44,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937271662] [2024-11-09 05:11:44,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937271662] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:11:44,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2059575960] [2024-11-09 05:11:44,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:11:44,713 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:11:44,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:11:44,717 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:11:44,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-09 05:18:16,935 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-09 05:18:16,935 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:18:17,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 05:18:17,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:18:17,235 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-09 05:18:17,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:18:17,753 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 418 proven. 153 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-09 05:18:17,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2059575960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:18:17,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996165361] [2024-11-09 05:18:17,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:18:17,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:17,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:18:17,757 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:18:17,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66a2fc13-1b21-4b96-a0b2-99f83a7b9cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process