./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:24:45,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:24:45,609 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 06:24:45,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:24:45,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:24:45,647 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:24:45,648 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:24:45,649 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:24:45,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:24:45,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:24:45,650 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:24:45,651 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:24:45,651 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:24:45,651 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:24:45,652 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:24:45,652 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:24:45,653 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:24:45,653 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:24:45,653 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:24:45,654 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:24:45,654 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:24:45,655 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:24:45,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:24:45,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:24:45,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:24:45,657 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:24:45,657 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:24:45,657 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:24:45,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:24:45,658 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 06:24:45,658 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 06:24:45,659 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 06:24:45,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:24:45,659 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:24:45,660 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:24:45,660 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:24:45,660 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:24:45,661 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:24:45,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:24:45,661 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:24:45,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:24:45,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:24:45,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:24:45,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:24:45,663 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:24:45,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:24:45,664 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:24:45,664 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:24:45,664 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:24:45,664 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_180e5311-ff43-4aad-b8c7-2a511013cda1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2024-11-09 06:24:46,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:24:46,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:24:46,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:24:46,063 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:24:46,064 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:24:46,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i Unable to find full path for "g++" [2024-11-09 06:24:48,362 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:24:48,744 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:24:48,749 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2024-11-09 06:24:48,785 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/data/babe2734f/fb613e0935e44bc2b5649de3a4116367/FLAG24f6e2866 [2024-11-09 06:24:48,809 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/data/babe2734f/fb613e0935e44bc2b5649de3a4116367 [2024-11-09 06:24:48,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:24:48,814 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:24:48,815 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:24:48,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:24:48,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:24:48,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:24:48" (1/1) ... [2024-11-09 06:24:48,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ad009b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:48, skipping insertion in model container [2024-11-09 06:24:48,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:24:48" (1/1) ... [2024-11-09 06:24:48,909 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:24:49,474 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 06:24:49,517 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:24:49,521 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 06:24:49,526 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 06:24:49,540 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 06:24:49,583 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 06:24:49,583 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 06:24:49,587 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 06:24:49,588 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 06:24:49,592 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:24:49,594 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 06:24:49,595 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:24:49,596 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:24:49,602 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 06:24:49,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:24:49,639 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 06:24:49,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@69fa19d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:49, skipping insertion in model container [2024-11-09 06:24:49,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:24:49,643 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 06:24:49,645 INFO L158 Benchmark]: Toolchain (without parser) took 830.60ms. Allocated memory is still 148.9MB. Free memory was 115.5MB in the beginning and 92.0MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 06:24:49,646 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:24:49,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 827.58ms. Allocated memory is still 148.9MB. Free memory was 115.0MB in the beginning and 92.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 06:24:49,649 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 827.58ms. Allocated memory is still 148.9MB. Free memory was 115.0MB in the beginning and 92.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 747]: 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_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:24:52,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:24:52,397 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2024-11-09 06:24:52,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:24:52,407 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:24:52,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:24:52,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:24:52,456 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:24:52,457 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:24:52,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:24:52,458 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:24:52,459 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:24:52,459 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:24:52,460 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:24:52,463 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:24:52,464 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:24:52,464 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:24:52,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:24:52,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:24:52,466 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:24:52,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:24:52,469 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:24:52,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:24:52,473 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 06:24:52,473 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 06:24:52,474 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 06:24:52,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:24:52,474 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:24:52,475 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:24:52,475 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:24:52,475 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:24:52,476 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:24:52,476 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:24:52,476 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:24:52,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:24:52,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:24:52,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:24:52,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:24:52,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:24:52,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:24:52,480 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:24:52,480 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:24:52,481 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:24:52,481 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:24:52,481 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:24:52,481 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_180e5311-ff43-4aad-b8c7-2a511013cda1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2024-11-09 06:24:52,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:24:53,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:24:53,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:24:53,011 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:24:53,013 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:24:53,015 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i Unable to find full path for "g++" [2024-11-09 06:24:55,389 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:24:55,786 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:24:55,786 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2024-11-09 06:24:55,810 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/data/e10fdc2f1/54b8e564b3c646a9af15221c76ffa2e7/FLAGe3baa9afd [2024-11-09 06:24:55,829 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/data/e10fdc2f1/54b8e564b3c646a9af15221c76ffa2e7 [2024-11-09 06:24:55,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:24:55,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:24:55,834 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:24:55,834 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:24:55,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:24:55,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:24:55" (1/1) ... [2024-11-09 06:24:55,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561805d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:55, skipping insertion in model container [2024-11-09 06:24:55,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:24:55" (1/1) ... [2024-11-09 06:24:55,926 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:24:56,576 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 06:24:56,647 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 06:24:56,654 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 06:24:56,662 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 06:24:56,679 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 06:24:56,761 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 06:24:56,762 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 06:24:56,768 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 06:24:56,772 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 06:24:56,780 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 06:24:56,783 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 06:24:56,788 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 06:24:56,789 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 06:24:56,803 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 06:24:56,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:24:56,829 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 06:24:56,844 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:24:56,875 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 06:24:56,903 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 06:24:56,906 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 06:24:56,910 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 06:24:56,919 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 06:24:56,980 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 06:24:56,984 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 06:24:56,991 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 06:24:56,992 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 06:24:56,998 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 06:24:57,000 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 06:24:57,002 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 06:24:57,003 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 06:24:57,012 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 06:24:57,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:24:57,025 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:24:57,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:24:57,266 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:24:57,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:57 WrapperNode [2024-11-09 06:24:57,267 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:24:57,268 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:24:57,268 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:24:57,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:24:57,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:57" (1/1) ... [2024-11-09 06:24:57,319 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:57" (1/1) ... [2024-11-09 06:24:57,404 INFO L138 Inliner]: procedures = 180, calls = 279, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1034 [2024-11-09 06:24:57,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:24:57,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:24:57,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:24:57,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:24:57,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:57" (1/1) ... [2024-11-09 06:24:57,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:57" (1/1) ... [2024-11-09 06:24:57,447 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:57" (1/1) ... [2024-11-09 06:24:57,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:57" (1/1) ... [2024-11-09 06:24:57,487 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:57" (1/1) ... [2024-11-09 06:24:57,496 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:57" (1/1) ... [2024-11-09 06:24:57,500 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:57" (1/1) ... [2024-11-09 06:24:57,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:57" (1/1) ... [2024-11-09 06:24:57,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:24:57,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:24:57,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:24:57,513 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:24:57,514 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:57" (1/1) ... [2024-11-09 06:24:57,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:24:57,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:24:57,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:24:57,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:24:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-09 06:24:57,595 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-09 06:24:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 06:24:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 06:24:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:24:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:24:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 06:24:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 06:24:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:24:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:24:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:24:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:24:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:24:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:24:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 06:24:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:24:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:24:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:24:57,867 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:24:57,871 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:24:57,909 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-09 06:25:03,539 INFO L? ?]: Removed 1090 outVars from TransFormulas that were not future-live. [2024-11-09 06:25:03,540 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:25:03,600 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:25:03,604 INFO L316 CfgBuilder]: Removed 58 assume(true) statements. [2024-11-09 06:25:03,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:25:03 BoogieIcfgContainer [2024-11-09 06:25:03,605 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:25:03,608 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:25:03,608 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:25:03,614 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:25:03,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:24:55" (1/3) ... [2024-11-09 06:25:03,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dbed02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:25:03, skipping insertion in model container [2024-11-09 06:25:03,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:24:57" (2/3) ... [2024-11-09 06:25:03,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dbed02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:25:03, skipping insertion in model container [2024-11-09 06:25:03,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:25:03" (3/3) ... [2024-11-09 06:25:03,621 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-1.i [2024-11-09 06:25:03,639 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:25:03,639 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 527 error locations. [2024-11-09 06:25:03,754 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:25:03,765 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;@36f6c0a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:25:03,766 INFO L334 AbstractCegarLoop]: Starting to check reachability of 527 error locations. [2024-11-09 06:25:03,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 1079 states, 541 states have (on average 2.2070240295748613) internal successors, (1194), 1072 states have internal predecessors, (1194), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 06:25:03,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 06:25:03,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:03,787 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 06:25:03,788 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:03,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:03,797 INFO L85 PathProgramCache]: Analyzing trace with hash 47731, now seen corresponding path program 1 times [2024-11-09 06:25:03,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:03,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971379253] [2024-11-09 06:25:03,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:03,816 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 06:25:03,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:03,826 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:03,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:04,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:25:04,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:04,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:25:04,162 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 06:25:04,162 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:04,163 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:04,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971379253] [2024-11-09 06:25:04,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971379253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:04,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:04,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:25:04,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063503137] [2024-11-09 06:25:04,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:04,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:25:04,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:04,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:25:04,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:25:04,218 INFO L87 Difference]: Start difference. First operand has 1079 states, 541 states have (on average 2.2070240295748613) internal successors, (1194), 1072 states have internal predecessors, (1194), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 06:25:06,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:06,667 INFO L93 Difference]: Finished difference Result 1074 states and 1145 transitions. [2024-11-09 06:25:06,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:25:06,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-09 06:25:06,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:06,706 INFO L225 Difference]: With dead ends: 1074 [2024-11-09 06:25:06,706 INFO L226 Difference]: Without dead ends: 1072 [2024-11-09 06:25:06,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:25:06,719 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 989 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:06,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 725 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 06:25:06,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2024-11-09 06:25:06,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1064. [2024-11-09 06:25:06,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 543 states have (on average 2.0570902394106816) internal successors, (1117), 1057 states have internal predecessors, (1117), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:06,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1135 transitions. [2024-11-09 06:25:06,823 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1135 transitions. Word has length 3 [2024-11-09 06:25:06,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:06,824 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1135 transitions. [2024-11-09 06:25:06,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 06:25:06,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1135 transitions. [2024-11-09 06:25:06,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 06:25:06,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:06,825 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 06:25:06,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:07,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:07,026 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:07,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:07,027 INFO L85 PathProgramCache]: Analyzing trace with hash 47732, now seen corresponding path program 1 times [2024-11-09 06:25:07,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:07,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554772327] [2024-11-09 06:25:07,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:07,028 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 06:25:07,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:07,032 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:07,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:07,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:25:07,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:07,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:25:07,209 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 06:25:07,209 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:07,210 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:07,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554772327] [2024-11-09 06:25:07,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554772327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:07,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:07,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:25:07,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473790358] [2024-11-09 06:25:07,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:07,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:25:07,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:07,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:25:07,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:25:07,220 INFO L87 Difference]: Start difference. First operand 1064 states and 1135 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 06:25:10,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:10,963 INFO L93 Difference]: Finished difference Result 1485 states and 1601 transitions. [2024-11-09 06:25:10,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:25:10,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-09 06:25:10,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:10,970 INFO L225 Difference]: With dead ends: 1485 [2024-11-09 06:25:10,971 INFO L226 Difference]: Without dead ends: 1485 [2024-11-09 06:25:10,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:25:10,972 INFO L432 NwaCegarLoop]: 936 mSDtfsCounter, 454 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:10,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1539 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-09 06:25:10,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2024-11-09 06:25:11,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1274. [2024-11-09 06:25:11,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 754 states have (on average 2.046419098143236) internal successors, (1543), 1267 states have internal predecessors, (1543), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:11,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1561 transitions. [2024-11-09 06:25:11,032 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1561 transitions. Word has length 3 [2024-11-09 06:25:11,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:11,032 INFO L471 AbstractCegarLoop]: Abstraction has 1274 states and 1561 transitions. [2024-11-09 06:25:11,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 06:25:11,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1561 transitions. [2024-11-09 06:25:11,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 06:25:11,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:11,036 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:11,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:11,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:11,237 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:11,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:11,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1130822653, now seen corresponding path program 1 times [2024-11-09 06:25:11,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:11,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589147025] [2024-11-09 06:25:11,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:11,239 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 06:25:11,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:11,242 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:11,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:11,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:25:11,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:11,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:25:11,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:25:11,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:25:11,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-09 06:25:11,557 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 06:25:11,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 06:25:11,596 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 06:25:11,596 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:11,596 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:11,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589147025] [2024-11-09 06:25:11,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589147025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:11,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:11,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:25:11,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096302165] [2024-11-09 06:25:11,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:11,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:25:11,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:11,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:25:11,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:25:11,599 INFO L87 Difference]: Start difference. First operand 1274 states and 1561 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 06:25:15,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:15,392 INFO L93 Difference]: Finished difference Result 1276 states and 1565 transitions. [2024-11-09 06:25:15,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:25:15,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2024-11-09 06:25:15,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:15,399 INFO L225 Difference]: With dead ends: 1276 [2024-11-09 06:25:15,400 INFO L226 Difference]: Without dead ends: 1276 [2024-11-09 06:25:15,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:25:15,401 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 1086 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:15,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 445 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 06:25:15,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2024-11-09 06:25:15,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1052. [2024-11-09 06:25:15,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 543 states have (on average 2.0331491712707184) internal successors, (1104), 1045 states have internal predecessors, (1104), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:15,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1122 transitions. [2024-11-09 06:25:15,434 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1122 transitions. Word has length 7 [2024-11-09 06:25:15,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:15,435 INFO L471 AbstractCegarLoop]: Abstraction has 1052 states and 1122 transitions. [2024-11-09 06:25:15,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 06:25:15,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1122 transitions. [2024-11-09 06:25:15,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:25:15,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:15,437 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:15,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:15,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:15,638 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:15,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:15,638 INFO L85 PathProgramCache]: Analyzing trace with hash 695763858, now seen corresponding path program 1 times [2024-11-09 06:25:15,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:15,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907499548] [2024-11-09 06:25:15,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:15,640 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 06:25:15,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:15,643 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:15,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:15,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:25:15,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:15,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:25:15,839 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 06:25:15,839 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:15,840 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:15,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907499548] [2024-11-09 06:25:15,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907499548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:15,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:15,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:25:15,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660661310] [2024-11-09 06:25:15,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:15,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:25:15,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:15,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:25:15,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:25:15,842 INFO L87 Difference]: Start difference. First operand 1052 states and 1122 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 06:25:18,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:18,608 INFO L93 Difference]: Finished difference Result 1387 states and 1489 transitions. [2024-11-09 06:25:18,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:25:18,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-11-09 06:25:18,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:18,614 INFO L225 Difference]: With dead ends: 1387 [2024-11-09 06:25:18,614 INFO L226 Difference]: Without dead ends: 1387 [2024-11-09 06:25:18,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:25:18,616 INFO L432 NwaCegarLoop]: 983 mSDtfsCounter, 947 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:18,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 1234 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 06:25:18,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2024-11-09 06:25:18,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1003. [2024-11-09 06:25:18,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 543 states have (on average 1.9429097605893186) internal successors, (1055), 996 states have internal predecessors, (1055), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:18,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1073 transitions. [2024-11-09 06:25:18,645 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1073 transitions. Word has length 8 [2024-11-09 06:25:18,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:18,646 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1073 transitions. [2024-11-09 06:25:18,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 06:25:18,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1073 transitions. [2024-11-09 06:25:18,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:25:18,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:18,647 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:18,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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)] Ended with exit code 0 [2024-11-09 06:25:18,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:18,850 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:18,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:18,851 INFO L85 PathProgramCache]: Analyzing trace with hash 695763859, now seen corresponding path program 1 times [2024-11-09 06:25:18,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:18,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488482450] [2024-11-09 06:25:18,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:18,852 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 06:25:18,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:18,853 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:18,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:19,010 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:25:19,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:19,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:25:19,062 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 06:25:19,062 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:19,062 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:19,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488482450] [2024-11-09 06:25:19,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488482450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:19,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:19,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:25:19,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261097649] [2024-11-09 06:25:19,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:19,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:25:19,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:19,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:25:19,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:25:19,065 INFO L87 Difference]: Start difference. First operand 1003 states and 1073 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 06:25:22,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:22,581 INFO L93 Difference]: Finished difference Result 1476 states and 1581 transitions. [2024-11-09 06:25:22,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:25:22,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-11-09 06:25:22,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:22,594 INFO L225 Difference]: With dead ends: 1476 [2024-11-09 06:25:22,594 INFO L226 Difference]: Without dead ends: 1476 [2024-11-09 06:25:22,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:25:22,598 INFO L432 NwaCegarLoop]: 1178 mSDtfsCounter, 697 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:22,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 1628 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-09 06:25:22,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2024-11-09 06:25:22,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1030. [2024-11-09 06:25:22,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 580 states have (on average 1.9293103448275861) internal successors, (1119), 1023 states have internal predecessors, (1119), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:22,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1137 transitions. [2024-11-09 06:25:22,668 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1137 transitions. Word has length 8 [2024-11-09 06:25:22,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:22,669 INFO L471 AbstractCegarLoop]: Abstraction has 1030 states and 1137 transitions. [2024-11-09 06:25:22,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 06:25:22,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1137 transitions. [2024-11-09 06:25:22,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:25:22,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:22,670 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:22,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:22,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:22,871 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr519REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:22,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:22,872 INFO L85 PathProgramCache]: Analyzing trace with hash 190250923, now seen corresponding path program 1 times [2024-11-09 06:25:22,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:22,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322435007] [2024-11-09 06:25:22,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:22,873 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 06:25:22,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:22,878 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:22,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:23,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:25:23,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:23,178 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 06:25:23,181 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:23,182 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:23,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322435007] [2024-11-09 06:25:23,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322435007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:23,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:23,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:25:23,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826457147] [2024-11-09 06:25:23,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:23,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:25:23,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:23,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:25:23,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:25:23,185 INFO L87 Difference]: Start difference. First operand 1030 states and 1137 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:25:24,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:24,026 INFO L93 Difference]: Finished difference Result 1457 states and 1621 transitions. [2024-11-09 06:25:24,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:25:24,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-09 06:25:24,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:24,033 INFO L225 Difference]: With dead ends: 1457 [2024-11-09 06:25:24,033 INFO L226 Difference]: Without dead ends: 1457 [2024-11-09 06:25:24,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 06:25:24,035 INFO L432 NwaCegarLoop]: 1123 mSDtfsCounter, 453 mSDsluCounter, 1989 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:24,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 3112 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:25:24,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-11-09 06:25:24,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1277. [2024-11-09 06:25:24,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 827 states have (on average 1.9141475211608223) internal successors, (1583), 1270 states have internal predecessors, (1583), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:24,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1601 transitions. [2024-11-09 06:25:24,069 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1601 transitions. Word has length 12 [2024-11-09 06:25:24,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:24,070 INFO L471 AbstractCegarLoop]: Abstraction has 1277 states and 1601 transitions. [2024-11-09 06:25:24,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:25:24,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1601 transitions. [2024-11-09 06:25:24,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:25:24,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:24,071 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:24,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:24,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:24,272 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr525ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:24,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:24,273 INFO L85 PathProgramCache]: Analyzing trace with hash 190302463, now seen corresponding path program 1 times [2024-11-09 06:25:24,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:24,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731660372] [2024-11-09 06:25:24,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:24,274 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 06:25:24,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:24,278 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:24,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:24,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:25:24,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:24,516 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:25:24,518 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:25:24,519 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 06:25:24,525 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 06:25:24,599 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:25:24,600 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 06:25:24,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:25:24,620 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:24,620 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:24,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731660372] [2024-11-09 06:25:24,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731660372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:24,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:24,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:25:24,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694732947] [2024-11-09 06:25:24,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:24,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:25:24,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:24,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:25:24,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:25:24,622 INFO L87 Difference]: Start difference. First operand 1277 states and 1601 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:25:26,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:26,297 INFO L93 Difference]: Finished difference Result 1662 states and 2061 transitions. [2024-11-09 06:25:26,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:25:26,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-09 06:25:26,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:26,302 INFO L225 Difference]: With dead ends: 1662 [2024-11-09 06:25:26,302 INFO L226 Difference]: Without dead ends: 1662 [2024-11-09 06:25:26,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:25:26,304 INFO L432 NwaCegarLoop]: 1005 mSDtfsCounter, 387 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 2901 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:26,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 2901 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 06:25:26,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2024-11-09 06:25:26,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1276. [2024-11-09 06:25:26,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 826 states have (on average 1.914043583535109) internal successors, (1581), 1269 states have internal predecessors, (1581), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:26,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1599 transitions. [2024-11-09 06:25:26,338 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1599 transitions. Word has length 12 [2024-11-09 06:25:26,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:26,338 INFO L471 AbstractCegarLoop]: Abstraction has 1276 states and 1599 transitions. [2024-11-09 06:25:26,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:25:26,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1599 transitions. [2024-11-09 06:25:26,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 06:25:26,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:26,339 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:26,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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)] Ended with exit code 0 [2024-11-09 06:25:26,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:26,540 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:26,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:26,541 INFO L85 PathProgramCache]: Analyzing trace with hash -927421553, now seen corresponding path program 1 times [2024-11-09 06:25:26,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:26,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495538228] [2024-11-09 06:25:26,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:26,541 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 06:25:26,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:26,542 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:26,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:26,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:25:26,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:26,766 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 06:25:26,766 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:26,767 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:26,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495538228] [2024-11-09 06:25:26,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495538228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:26,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:26,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:25:26,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120652381] [2024-11-09 06:25:26,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:26,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:25:26,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:26,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:25:26,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:25:26,769 INFO L87 Difference]: Start difference. First operand 1276 states and 1599 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 06:25:26,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:26,812 INFO L93 Difference]: Finished difference Result 1214 states and 1509 transitions. [2024-11-09 06:25:26,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:25:26,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2024-11-09 06:25:26,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:26,817 INFO L225 Difference]: With dead ends: 1214 [2024-11-09 06:25:26,818 INFO L226 Difference]: Without dead ends: 1214 [2024-11-09 06:25:26,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:25:26,819 INFO L432 NwaCegarLoop]: 998 mSDtfsCounter, 71 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:26,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1933 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:25:26,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2024-11-09 06:25:26,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1214. [2024-11-09 06:25:26,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 788 states have (on average 1.8921319796954315) internal successors, (1491), 1207 states have internal predecessors, (1491), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:26,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1509 transitions. [2024-11-09 06:25:26,847 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1509 transitions. Word has length 19 [2024-11-09 06:25:26,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:26,848 INFO L471 AbstractCegarLoop]: Abstraction has 1214 states and 1509 transitions. [2024-11-09 06:25:26,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 06:25:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1509 transitions. [2024-11-09 06:25:26,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 06:25:26,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:26,849 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] [2024-11-09 06:25:26,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:27,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:27,051 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:27,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:27,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1316485504, now seen corresponding path program 1 times [2024-11-09 06:25:27,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:27,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548925192] [2024-11-09 06:25:27,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:27,053 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 06:25:27,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:27,057 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:27,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:27,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:25:27,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:27,337 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 06:25:27,337 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:27,337 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:27,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548925192] [2024-11-09 06:25:27,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548925192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:27,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:27,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:25:27,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275003700] [2024-11-09 06:25:27,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:27,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:25:27,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:27,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:25:27,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:25:27,345 INFO L87 Difference]: Start difference. First operand 1214 states and 1509 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 06:25:27,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:27,465 INFO L93 Difference]: Finished difference Result 1184 states and 1451 transitions. [2024-11-09 06:25:27,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:25:27,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2024-11-09 06:25:27,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:27,470 INFO L225 Difference]: With dead ends: 1184 [2024-11-09 06:25:27,471 INFO L226 Difference]: Without dead ends: 1184 [2024-11-09 06:25:27,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 06:25:27,472 INFO L432 NwaCegarLoop]: 953 mSDtfsCounter, 48 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:27,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 2833 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:25:27,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2024-11-09 06:25:27,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1184. [2024-11-09 06:25:27,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 772 states have (on average 1.8562176165803108) internal successors, (1433), 1177 states have internal predecessors, (1433), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:27,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1451 transitions. [2024-11-09 06:25:27,498 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1451 transitions. Word has length 20 [2024-11-09 06:25:27,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:27,499 INFO L471 AbstractCegarLoop]: Abstraction has 1184 states and 1451 transitions. [2024-11-09 06:25:27,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 06:25:27,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1451 transitions. [2024-11-09 06:25:27,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 06:25:27,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:27,500 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] [2024-11-09 06:25:27,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:27,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:27,705 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:27,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:27,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1802854638, now seen corresponding path program 1 times [2024-11-09 06:25:27,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:27,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904819235] [2024-11-09 06:25:27,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:27,706 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 06:25:27,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:27,709 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:27,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 (11)] Waiting until timeout for monitored process [2024-11-09 06:25:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:27,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:25:27,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:27,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:25:28,017 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 06:25:28,017 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:28,017 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:28,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904819235] [2024-11-09 06:25:28,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [904819235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:28,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:28,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:25:28,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570096528] [2024-11-09 06:25:28,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:28,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:25:28,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:28,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:25:28,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:25:28,020 INFO L87 Difference]: Start difference. First operand 1184 states and 1451 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 06:25:30,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:30,976 INFO L93 Difference]: Finished difference Result 1646 states and 2036 transitions. [2024-11-09 06:25:30,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:25:30,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2024-11-09 06:25:30,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:30,983 INFO L225 Difference]: With dead ends: 1646 [2024-11-09 06:25:30,983 INFO L226 Difference]: Without dead ends: 1646 [2024-11-09 06:25:30,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 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 06:25:30,984 INFO L432 NwaCegarLoop]: 531 mSDtfsCounter, 878 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:30,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 1242 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 06:25:30,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2024-11-09 06:25:31,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1180. [2024-11-09 06:25:31,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 772 states have (on average 1.8458549222797926) internal successors, (1425), 1173 states have internal predecessors, (1425), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:31,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1443 transitions. [2024-11-09 06:25:31,017 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1443 transitions. Word has length 34 [2024-11-09 06:25:31,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:31,017 INFO L471 AbstractCegarLoop]: Abstraction has 1180 states and 1443 transitions. [2024-11-09 06:25:31,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 06:25:31,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1443 transitions. [2024-11-09 06:25:31,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 06:25:31,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:31,020 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] [2024-11-09 06:25:31,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 (11)] Forceful destruction successful, exit code 0 [2024-11-09 06:25:31,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:31,224 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:31,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:31,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1802854639, now seen corresponding path program 1 times [2024-11-09 06:25:31,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:31,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170932736] [2024-11-09 06:25:31,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:31,225 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 06:25:31,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:31,227 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:31,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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)] Waiting until timeout for monitored process [2024-11-09 06:25:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:31,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:25:31,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:31,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:25:31,780 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 06:25:31,780 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:31,781 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:31,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170932736] [2024-11-09 06:25:31,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170932736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:31,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:31,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:25:31,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668547719] [2024-11-09 06:25:31,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:31,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:25:31,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:31,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:25:31,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:25:31,783 INFO L87 Difference]: Start difference. First operand 1180 states and 1443 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 06:25:36,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:36,505 INFO L93 Difference]: Finished difference Result 1788 states and 2202 transitions. [2024-11-09 06:25:36,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:25:36,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2024-11-09 06:25:36,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:36,515 INFO L225 Difference]: With dead ends: 1788 [2024-11-09 06:25:36,515 INFO L226 Difference]: Without dead ends: 1788 [2024-11-09 06:25:36,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 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 06:25:36,516 INFO L432 NwaCegarLoop]: 1221 mSDtfsCounter, 624 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:36,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 2450 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-09 06:25:36,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2024-11-09 06:25:36,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1176. [2024-11-09 06:25:36,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1176 states, 772 states have (on average 1.8354922279792747) internal successors, (1417), 1169 states have internal predecessors, (1417), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:36,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 1435 transitions. [2024-11-09 06:25:36,543 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 1435 transitions. Word has length 34 [2024-11-09 06:25:36,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:36,544 INFO L471 AbstractCegarLoop]: Abstraction has 1176 states and 1435 transitions. [2024-11-09 06:25:36,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 06:25:36,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 1435 transitions. [2024-11-09 06:25:36,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 06:25:36,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:36,546 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:36,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:25:36,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:36,747 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:36,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:36,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1430728313, now seen corresponding path program 1 times [2024-11-09 06:25:36,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:36,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125272669] [2024-11-09 06:25:36,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:36,748 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 06:25:36,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:36,751 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:36,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:36,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:25:36,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:37,038 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 06:25:37,038 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:37,038 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:37,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125272669] [2024-11-09 06:25:37,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125272669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:37,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:37,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:25:37,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198977315] [2024-11-09 06:25:37,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:37,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:25:37,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:37,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:25:37,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:25:37,040 INFO L87 Difference]: Start difference. First operand 1176 states and 1435 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 06:25:37,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:37,112 INFO L93 Difference]: Finished difference Result 1164 states and 1415 transitions. [2024-11-09 06:25:37,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:25:37,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2024-11-09 06:25:37,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:37,118 INFO L225 Difference]: With dead ends: 1164 [2024-11-09 06:25:37,119 INFO L226 Difference]: Without dead ends: 1164 [2024-11-09 06:25:37,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 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 06:25:37,120 INFO L432 NwaCegarLoop]: 947 mSDtfsCounter, 21 mSDsluCounter, 1863 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:37,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2810 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:25:37,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2024-11-09 06:25:37,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 1164. [2024-11-09 06:25:37,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1164 states, 760 states have (on average 1.8381578947368422) internal successors, (1397), 1157 states have internal predecessors, (1397), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:37,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1415 transitions. [2024-11-09 06:25:37,139 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1415 transitions. Word has length 53 [2024-11-09 06:25:37,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:37,139 INFO L471 AbstractCegarLoop]: Abstraction has 1164 states and 1415 transitions. [2024-11-09 06:25:37,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 06:25:37,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1415 transitions. [2024-11-09 06:25:37,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 06:25:37,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:37,140 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:37,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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)] Ended with exit code 0 [2024-11-09 06:25:37,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:37,341 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:37,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:37,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1584737093, now seen corresponding path program 1 times [2024-11-09 06:25:37,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:37,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001738118] [2024-11-09 06:25:37,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:37,342 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 06:25:37,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:37,346 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:37,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 (14)] Waiting until timeout for monitored process [2024-11-09 06:25:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:37,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:25:37,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:37,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:25:37,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:25:38,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:25:38,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-09 06:25:38,462 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 06:25:38,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 06:25:38,479 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 06:25:38,479 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:38,479 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:38,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001738118] [2024-11-09 06:25:38,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001738118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:38,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:38,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:25:38,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366052149] [2024-11-09 06:25:38,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:38,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:25:38,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:38,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:25:38,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:25:38,481 INFO L87 Difference]: Start difference. First operand 1164 states and 1415 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 06:25:41,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:41,600 INFO L93 Difference]: Finished difference Result 1584 states and 1962 transitions. [2024-11-09 06:25:41,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:25:41,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2024-11-09 06:25:41,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:41,605 INFO L225 Difference]: With dead ends: 1584 [2024-11-09 06:25:41,606 INFO L226 Difference]: Without dead ends: 1584 [2024-11-09 06:25:41,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:25:41,607 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 1214 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:41,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 574 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 06:25:41,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2024-11-09 06:25:41,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1089. [2024-11-09 06:25:41,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 723 states have (on average 1.7773167358229598) internal successors, (1285), 1082 states have internal predecessors, (1285), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:41,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1303 transitions. [2024-11-09 06:25:41,641 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1303 transitions. Word has length 61 [2024-11-09 06:25:41,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:41,642 INFO L471 AbstractCegarLoop]: Abstraction has 1089 states and 1303 transitions. [2024-11-09 06:25:41,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 06:25:41,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1303 transitions. [2024-11-09 06:25:41,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 06:25:41,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:41,643 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:41,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 (14)] Ended with exit code 0 [2024-11-09 06:25:41,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:41,844 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:41,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:41,845 INFO L85 PathProgramCache]: Analyzing trace with hash -717148443, now seen corresponding path program 1 times [2024-11-09 06:25:41,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:41,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213367866] [2024-11-09 06:25:41,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:41,845 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 06:25:41,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:41,849 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:41,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 (15)] Waiting until timeout for monitored process [2024-11-09 06:25:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:42,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:25:42,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:42,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-09 06:25:42,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 06:25:42,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-09 06:25:42,282 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 06:25:42,282 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:42,283 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:42,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213367866] [2024-11-09 06:25:42,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213367866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:42,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:42,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:25:42,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544372496] [2024-11-09 06:25:42,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:42,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:25:42,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:42,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:25:42,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:25:42,286 INFO L87 Difference]: Start difference. First operand 1089 states and 1303 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 06:25:45,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:45,418 INFO L93 Difference]: Finished difference Result 1088 states and 1302 transitions. [2024-11-09 06:25:45,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:25:45,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2024-11-09 06:25:45,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:45,422 INFO L225 Difference]: With dead ends: 1088 [2024-11-09 06:25:45,422 INFO L226 Difference]: Without dead ends: 1088 [2024-11-09 06:25:45,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:25:45,423 INFO L432 NwaCegarLoop]: 920 mSDtfsCounter, 2 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2406 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:45,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2406 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 06:25:45,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2024-11-09 06:25:45,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1088. [2024-11-09 06:25:45,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 723 states have (on average 1.7759336099585061) internal successors, (1284), 1081 states have internal predecessors, (1284), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:45,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1302 transitions. [2024-11-09 06:25:45,443 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1302 transitions. Word has length 66 [2024-11-09 06:25:45,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:45,443 INFO L471 AbstractCegarLoop]: Abstraction has 1088 states and 1302 transitions. [2024-11-09 06:25:45,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 06:25:45,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1302 transitions. [2024-11-09 06:25:45,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 06:25:45,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:45,445 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:45,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 (15)] Forceful destruction successful, exit code 0 [2024-11-09 06:25:45,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:45,645 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:45,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:45,646 INFO L85 PathProgramCache]: Analyzing trace with hash -717148442, now seen corresponding path program 1 times [2024-11-09 06:25:45,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:45,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429671833] [2024-11-09 06:25:45,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:45,647 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 06:25:45,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:45,648 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:45,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:46,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:25:46,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:46,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 06:25:46,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 06:25:46,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-09 06:25:46,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-09 06:25:46,188 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 06:25:46,188 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:46,189 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:46,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429671833] [2024-11-09 06:25:46,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429671833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:46,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:46,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:25:46,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130881952] [2024-11-09 06:25:46,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:46,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:25:46,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:46,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:25:46,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:25:46,192 INFO L87 Difference]: Start difference. First operand 1088 states and 1302 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 06:25:50,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:50,072 INFO L93 Difference]: Finished difference Result 1087 states and 1301 transitions. [2024-11-09 06:25:50,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:25:50,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2024-11-09 06:25:50,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:50,077 INFO L225 Difference]: With dead ends: 1087 [2024-11-09 06:25:50,077 INFO L226 Difference]: Without dead ends: 1087 [2024-11-09 06:25:50,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:25:50,078 INFO L432 NwaCegarLoop]: 920 mSDtfsCounter, 1 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2440 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:50,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2440 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-09 06:25:50,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-11-09 06:25:50,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1087. [2024-11-09 06:25:50,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 722 states have (on average 1.7770083102493075) internal successors, (1283), 1080 states have internal predecessors, (1283), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 06:25:50,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1301 transitions. [2024-11-09 06:25:50,098 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1301 transitions. Word has length 66 [2024-11-09 06:25:50,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:50,098 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1301 transitions. [2024-11-09 06:25:50,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 06:25:50,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1301 transitions. [2024-11-09 06:25:50,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 06:25:50,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:50,100 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:50,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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)] Ended with exit code 0 [2024-11-09 06:25:50,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:50,304 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:50,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:50,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1219459092, now seen corresponding path program 1 times [2024-11-09 06:25:50,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:50,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074463471] [2024-11-09 06:25:50,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:50,306 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 06:25:50,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:50,310 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:50,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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)] Waiting until timeout for monitored process [2024-11-09 06:25:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:50,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:25:50,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:50,671 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 06:25:50,671 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:25:50,671 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:50,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074463471] [2024-11-09 06:25:50,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074463471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:50,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:50,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:25:50,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793863302] [2024-11-09 06:25:50,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:50,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:25:50,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:50,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:25:50,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:25:50,674 INFO L87 Difference]: Start difference. First operand 1087 states and 1301 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:25:50,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:50,741 INFO L93 Difference]: Finished difference Result 1090 states and 1305 transitions. [2024-11-09 06:25:50,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:25:50,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2024-11-09 06:25:50,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:50,746 INFO L225 Difference]: With dead ends: 1090 [2024-11-09 06:25:50,746 INFO L226 Difference]: Without dead ends: 1090 [2024-11-09 06:25:50,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 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 06:25:50,747 INFO L432 NwaCegarLoop]: 920 mSDtfsCounter, 0 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:50,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2755 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:25:50,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2024-11-09 06:25:50,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1090. [2024-11-09 06:25:50,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 724 states have (on average 1.776243093922652) internal successors, (1286), 1083 states have internal predecessors, (1286), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 06:25:50,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1305 transitions. [2024-11-09 06:25:50,779 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1305 transitions. Word has length 74 [2024-11-09 06:25:50,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:50,779 INFO L471 AbstractCegarLoop]: Abstraction has 1090 states and 1305 transitions. [2024-11-09 06:25:50,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:25:50,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1305 transitions. [2024-11-09 06:25:50,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 06:25:50,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:50,781 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:50,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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)] Ended with exit code 0 [2024-11-09 06:25:50,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:50,981 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:50,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:50,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1849232052, now seen corresponding path program 1 times [2024-11-09 06:25:50,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:50,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132987395] [2024-11-09 06:25:50,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:50,983 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 06:25:50,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:50,986 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:50,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:51,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:25:51,286 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:51,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:25:51,320 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:25:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:25:51,408 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:51,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132987395] [2024-11-09 06:25:51,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132987395] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:25:51,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [633104059] [2024-11-09 06:25:51,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:51,409 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:25:51,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:25:51,412 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:25:51,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-09 06:25:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:51,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:25:51,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:51,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:25:51,972 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:25:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:25:52,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [633104059] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:25:52,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022704401] [2024-11-09 06:25:52,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:25:52,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:25:52,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:25:52,011 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:25:52,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 06:25:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:52,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:25:52,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:52,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:25:52,364 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:25:52,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:25:52,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022704401] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:25:52,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:25:52,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2024-11-09 06:25:52,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817709994] [2024-11-09 06:25:52,399 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:25:52,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:25:52,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:25:52,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:25:52,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:25:52,401 INFO L87 Difference]: Start difference. First operand 1090 states and 1305 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:25:52,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:25:52,572 INFO L93 Difference]: Finished difference Result 1102 states and 1322 transitions. [2024-11-09 06:25:52,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:25:52,573 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2024-11-09 06:25:52,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:25:52,578 INFO L225 Difference]: With dead ends: 1102 [2024-11-09 06:25:52,578 INFO L226 Difference]: Without dead ends: 1102 [2024-11-09 06:25:52,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:25:52,579 INFO L432 NwaCegarLoop]: 920 mSDtfsCounter, 5 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:25:52,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3671 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:25:52,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-11-09 06:25:52,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1100. [2024-11-09 06:25:52,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 733 states have (on average 1.7748976807639836) internal successors, (1301), 1092 states have internal predecessors, (1301), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 06:25:52,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1320 transitions. [2024-11-09 06:25:52,602 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1320 transitions. Word has length 75 [2024-11-09 06:25:52,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:25:52,602 INFO L471 AbstractCegarLoop]: Abstraction has 1100 states and 1320 transitions. [2024-11-09 06:25:52,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:25:52,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1320 transitions. [2024-11-09 06:25:52,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 06:25:52,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:25:52,604 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:25:52,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:52,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-09 06:25:53,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-09 06:25:53,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:25:53,205 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:25:53,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:25:53,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1858009580, now seen corresponding path program 2 times [2024-11-09 06:25:53,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:25:53,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951839938] [2024-11-09 06:25:53,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:25:53,206 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 06:25:53,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:25:53,208 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:53,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:25:53,842 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:25:53,842 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:25:53,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:25:53,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:53,934 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:25:53,934 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:25:54,222 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:25:54,222 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:25:54,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951839938] [2024-11-09 06:25:54,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951839938] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:25:54,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [811129126] [2024-11-09 06:25:54,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:25:54,223 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:25:54,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:25:54,227 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:25:54,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-09 06:25:56,087 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:25:56,087 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:25:56,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:25:56,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:25:56,155 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:25:56,155 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:25:56,223 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:25:56,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [811129126] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:25:56,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132866506] [2024-11-09 06:25:56,224 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:25:56,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:25:56,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:25:56,226 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:25:56,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 06:26:09,317 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:26:09,317 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:26:09,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:26:09,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:26:09,421 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:26:09,421 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:26:09,673 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:26:09,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132866506] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:26:09,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:26:09,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 20 [2024-11-09 06:26:09,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658019164] [2024-11-09 06:26:09,674 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:26:09,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 06:26:09,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:26:09,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 06:26:09,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:26:09,677 INFO L87 Difference]: Start difference. First operand 1100 states and 1320 transitions. Second operand has 20 states, 20 states have (on average 4.55) internal successors, (91), 20 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 06:26:10,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:26:10,489 INFO L93 Difference]: Finished difference Result 1117 states and 1343 transitions. [2024-11-09 06:26:10,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 06:26:10,490 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.55) internal successors, (91), 20 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 78 [2024-11-09 06:26:10,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:26:10,495 INFO L225 Difference]: With dead ends: 1117 [2024-11-09 06:26:10,495 INFO L226 Difference]: Without dead ends: 1111 [2024-11-09 06:26:10,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=292, Invalid=520, Unknown=0, NotChecked=0, Total=812 [2024-11-09 06:26:10,496 INFO L432 NwaCegarLoop]: 921 mSDtfsCounter, 14 mSDsluCounter, 7338 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8259 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:26:10,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8259 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:26:10,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2024-11-09 06:26:10,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1109. [2024-11-09 06:26:10,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 742 states have (on average 1.7681940700808625) internal successors, (1312), 1101 states have internal predecessors, (1312), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 06:26:10,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1331 transitions. [2024-11-09 06:26:10,520 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1331 transitions. Word has length 78 [2024-11-09 06:26:10,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:26:10,520 INFO L471 AbstractCegarLoop]: Abstraction has 1109 states and 1331 transitions. [2024-11-09 06:26:10,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.55) internal successors, (91), 20 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 06:26:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1331 transitions. [2024-11-09 06:26:10,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:26:10,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:26:10,522 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:26:10,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:26:10,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-09 06:26:10,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2024-11-09 06:26:11,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:26:11,123 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 524 more)] === [2024-11-09 06:26:11,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:26:11,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1655978772, now seen corresponding path program 3 times [2024-11-09 06:26:11,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:26:11,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118847826] [2024-11-09 06:26:11,124 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:26:11,125 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 06:26:11,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:26:11,126 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:26:11,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/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 06:26:11,948 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-09 06:26:11,948 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:26:11,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 06:26:11,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:26:12,205 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:26:12,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:26:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:26:13,032 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:26:13,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118847826] [2024-11-09 06:26:13,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118847826] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:26:13,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [248975449] [2024-11-09 06:26:13,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:26:13,033 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:26:13,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:26:13,034 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:26:13,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-09 06:26:18,387 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-09 06:26:18,387 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:26:18,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 06:26:18,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:26:18,499 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:26:18,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:26:18,745 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:26:18,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [248975449] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:26:18,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525974522] [2024-11-09 06:26:18,746 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:26:18,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:26:18,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:26:18,748 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:26:18,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_180e5311-ff43-4aad-b8c7-2a511013cda1/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process