./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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_949ae2bb-ce12-456e-a280-165734c775c2/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 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:11:45,285 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:11:45,389 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2024-11-09 01:11:45,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:11:45,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:11:45,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:11:45,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:11:45,444 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:11:45,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:11:45,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:11:45,446 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:11:45,448 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:11:45,448 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:11:45,449 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:11:45,451 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:11:45,452 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:11:45,452 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:11:45,453 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:11:45,453 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:11:45,454 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:11:45,454 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:11:45,459 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:11:45,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 01:11:45,460 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 01:11:45,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:11:45,461 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:11:45,461 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:11:45,461 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:11:45,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:11:45,462 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 01:11:45,462 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 01:11:45,465 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 01:11:45,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:11:45,466 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:11:45,467 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:11:45,467 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:11:45,468 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:11:45,468 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:11:45,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:11:45,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:11:45,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:11:45,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:11:45,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:11:45,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:11:45,471 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:11:45,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:11:45,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:11:45,472 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:11:45,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:11:45,472 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_949ae2bb-ce12-456e-a280-165734c775c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 [2024-11-09 01:11:45,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:11:45,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:11:45,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:11:45,853 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:11:45,853 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:11:45,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i Unable to find full path for "g++" [2024-11-09 01:11:47,930 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:11:48,364 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:11:48,364 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2024-11-09 01:11:48,396 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/data/97507afd2/39a0f3ddc34d47958f4e6dc12c840633/FLAG53e8f99fe [2024-11-09 01:11:48,412 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/data/97507afd2/39a0f3ddc34d47958f4e6dc12c840633 [2024-11-09 01:11:48,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:11:48,417 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:11:48,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:11:48,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:11:48,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:11:48,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:11:48" (1/1) ... [2024-11-09 01:11:48,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@791b2831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:48, skipping insertion in model container [2024-11-09 01:11:48,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:11:48" (1/1) ... [2024-11-09 01:11:48,508 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:11:49,107 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 01:11:49,170 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 01:11:49,177 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 01:11:49,189 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 01:11:49,200 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 01:11:49,260 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 01:11:49,260 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 01:11:49,264 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 01:11:49,268 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:11:49,272 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 01:11:49,277 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 01:11:49,279 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:11:49,282 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:11:49,292 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 01:11:49,295 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 01:11:49,297 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 01:11:49,298 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 01:11:49,299 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 01:11:49,304 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 01:11:49,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:11:49,335 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 01:11:49,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1a6b647b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:49, skipping insertion in model container [2024-11-09 01:11:49,338 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:11:49,339 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 01:11:49,340 INFO L158 Benchmark]: Toolchain (without parser) took 922.71ms. Allocated memory is still 146.8MB. Free memory was 110.6MB in the beginning and 85.9MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 01:11:49,341 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 102.8MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:11:49,342 INFO L158 Benchmark]: CACSL2BoogieTranslator took 920.23ms. Allocated memory is still 146.8MB. Free memory was 110.6MB in the beginning and 85.9MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-09 01:11:49,343 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 102.8MB. Free memory is still 52.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 920.23ms. Allocated memory is still 146.8MB. Free memory was 110.6MB in the beginning and 85.9MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 778]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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_949ae2bb-ce12-456e-a280-165734c775c2/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 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:11:51,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:11:51,988 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2024-11-09 01:11:51,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:11:51,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:11:52,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:11:52,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:11:52,034 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:11:52,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:11:52,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:11:52,037 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:11:52,038 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:11:52,038 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:11:52,039 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:11:52,039 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:11:52,041 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:11:52,042 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 01:11:52,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 01:11:52,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:11:52,043 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:11:52,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:11:52,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:11:52,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:11:52,048 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 01:11:52,049 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 01:11:52,049 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 01:11:52,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:11:52,049 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:11:52,050 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 01:11:52,050 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:11:52,050 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 01:11:52,051 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:11:52,051 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:11:52,051 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:11:52,052 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:11:52,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 01:11:52,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:11:52,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:11:52,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:11:52,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:11:52,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:11:52,056 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 01:11:52,056 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 01:11:52,057 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:11:52,057 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:11:52,057 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_949ae2bb-ce12-456e-a280-165734c775c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 [2024-11-09 01:11:52,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:11:52,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:11:52,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:11:52,584 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:11:52,584 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:11:52,587 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i Unable to find full path for "g++" [2024-11-09 01:11:54,974 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:11:55,260 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:11:55,260 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2024-11-09 01:11:55,284 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/data/8246cdd95/ccdc74f4e2784caeb20a5e763fb55ab4/FLAGa729d3f51 [2024-11-09 01:11:55,298 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/data/8246cdd95/ccdc74f4e2784caeb20a5e763fb55ab4 [2024-11-09 01:11:55,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:11:55,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:11:55,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:11:55,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:11:55,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:11:55,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:11:55" (1/1) ... [2024-11-09 01:11:55,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b7278da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:55, skipping insertion in model container [2024-11-09 01:11:55,313 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:11:55" (1/1) ... [2024-11-09 01:11:55,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:11:55,983 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 01:11:56,034 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:11:56,040 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 01:11:56,051 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 01:11:56,061 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 01:11:56,134 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 01:11:56,138 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 01:11:56,142 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 01:11:56,147 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 01:11:56,153 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 01:11:56,159 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 01:11:56,161 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 01:11:56,165 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:11:56,170 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 01:11:56,178 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 01:11:56,182 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 01:11:56,183 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 01:11:56,185 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 01:11:56,189 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 01:11:56,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:11:56,224 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 01:11:56,239 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:11:56,290 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 01:11:56,315 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 01:11:56,323 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 01:11:56,330 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 01:11:56,339 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 01:11:56,376 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 01:11:56,376 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 01:11:56,382 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 01:11:56,383 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 01:11:56,385 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 01:11:56,389 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 01:11:56,390 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 01:11:56,391 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 01:11:56,396 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 01:11:56,403 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 01:11:56,404 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 01:11:56,405 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 01:11:56,406 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 01:11:56,412 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 01:11:56,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:11:56,423 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:11:56,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:11:56,574 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:11:56,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:56 WrapperNode [2024-11-09 01:11:56,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:11:56,576 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:11:56,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:11:56,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:11:56,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:56" (1/1) ... [2024-11-09 01:11:56,615 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:56" (1/1) ... [2024-11-09 01:11:56,687 INFO L138 Inliner]: procedures = 180, calls = 342, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1165 [2024-11-09 01:11:56,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:11:56,688 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:11:56,688 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:11:56,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:11:56,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:56" (1/1) ... [2024-11-09 01:11:56,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:56" (1/1) ... [2024-11-09 01:11:56,724 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:56" (1/1) ... [2024-11-09 01:11:56,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:56" (1/1) ... [2024-11-09 01:11:56,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:56" (1/1) ... [2024-11-09 01:11:56,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:56" (1/1) ... [2024-11-09 01:11:56,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:56" (1/1) ... [2024-11-09 01:11:56,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:56" (1/1) ... [2024-11-09 01:11:56,859 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:11:56,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:11:56,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:11:56,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:11:56,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:56" (1/1) ... [2024-11-09 01:11:56,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:11:56,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:11:56,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:11:56,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:11:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-09 01:11:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-09 01:11:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 01:11:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 01:11:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 01:11:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 01:11:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 01:11:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 01:11:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2024-11-09 01:11:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2024-11-09 01:11:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 01:11:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:11:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 01:11:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 01:11:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 01:11:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:11:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 01:11:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 01:11:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:11:56,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:11:57,207 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:11:57,210 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:11:57,236 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-09 01:12:03,253 INFO L? ?]: Removed 1319 outVars from TransFormulas that were not future-live. [2024-11-09 01:12:03,253 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:12:03,317 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:12:03,317 INFO L316 CfgBuilder]: Removed 66 assume(true) statements. [2024-11-09 01:12:03,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:12:03 BoogieIcfgContainer [2024-11-09 01:12:03,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:12:03,323 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:12:03,323 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:12:03,327 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:12:03,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:11:55" (1/3) ... [2024-11-09 01:12:03,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ec19ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:12:03, skipping insertion in model container [2024-11-09 01:12:03,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:11:56" (2/3) ... [2024-11-09 01:12:03,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ec19ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:12:03, skipping insertion in model container [2024-11-09 01:12:03,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:12:03" (3/3) ... [2024-11-09 01:12:03,332 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test8-2.i [2024-11-09 01:12:03,355 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:12:03,356 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 634 error locations. [2024-11-09 01:12:03,457 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:12:03,465 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;@7d38b372, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:12:03,466 INFO L334 AbstractCegarLoop]: Starting to check reachability of 634 error locations. [2024-11-09 01:12:03,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 1304 states, 646 states have (on average 2.219814241486068) internal successors, (1434), 1294 states have internal predecessors, (1434), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 01:12:03,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 01:12:03,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:03,488 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 01:12:03,489 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:03,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:03,494 INFO L85 PathProgramCache]: Analyzing trace with hash 141073, now seen corresponding path program 1 times [2024-11-09 01:12:03,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:03,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082863209] [2024-11-09 01:12:03,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:03,506 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 01:12:03,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:03,510 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:03,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:03,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:12:03,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:03,854 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 01:12:03,917 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 01:12:03,920 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:03,921 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:03,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082863209] [2024-11-09 01:12:03,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082863209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:03,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:03,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:12:03,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120470293] [2024-11-09 01:12:03,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:03,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:12:03,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:04,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:12:04,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:12:04,006 INFO L87 Difference]: Start difference. First operand has 1304 states, 646 states have (on average 2.219814241486068) internal successors, (1434), 1294 states have internal predecessors, (1434), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) 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 01:12:06,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:06,984 INFO L93 Difference]: Finished difference Result 1487 states and 1600 transitions. [2024-11-09 01:12:06,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:12:06,986 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 01:12:06,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:07,008 INFO L225 Difference]: With dead ends: 1487 [2024-11-09 01:12:07,008 INFO L226 Difference]: Without dead ends: 1485 [2024-11-09 01:12:07,010 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 01:12:07,014 INFO L432 NwaCegarLoop]: 832 mSDtfsCounter, 1163 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:07,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 1072 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 01:12:07,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2024-11-09 01:12:07,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1293. [2024-11-09 01:12:07,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 651 states have (on average 2.0829493087557602) internal successors, (1356), 1282 states have internal predecessors, (1356), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-09 01:12:07,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1400 transitions. [2024-11-09 01:12:07,141 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1400 transitions. Word has length 3 [2024-11-09 01:12:07,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:07,142 INFO L471 AbstractCegarLoop]: Abstraction has 1293 states and 1400 transitions. [2024-11-09 01:12:07,142 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 01:12:07,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1400 transitions. [2024-11-09 01:12:07,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 01:12:07,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:07,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 01:12:07,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:07,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:07,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:07,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:07,345 INFO L85 PathProgramCache]: Analyzing trace with hash 141074, now seen corresponding path program 1 times [2024-11-09 01:12:07,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:07,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359265393] [2024-11-09 01:12:07,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:07,346 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 01:12:07,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:07,348 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:07,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:07,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:12:07,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:07,509 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 01:12:07,530 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 01:12:07,530 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:07,531 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:07,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359265393] [2024-11-09 01:12:07,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359265393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:07,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:07,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:12:07,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064836168] [2024-11-09 01:12:07,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:07,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:12:07,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:07,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:12:07,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:12:07,538 INFO L87 Difference]: Start difference. First operand 1293 states and 1400 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 01:12:11,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:11,937 INFO L93 Difference]: Finished difference Result 1897 states and 2050 transitions. [2024-11-09 01:12:11,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:12:11,939 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 01:12:11,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:11,946 INFO L225 Difference]: With dead ends: 1897 [2024-11-09 01:12:11,946 INFO L226 Difference]: Without dead ends: 1897 [2024-11-09 01:12:11,947 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 01:12:11,948 INFO L432 NwaCegarLoop]: 1095 mSDtfsCounter, 646 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:11,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 1860 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-09 01:12:11,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2024-11-09 01:12:11,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1507. [2024-11-09 01:12:11,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 865 states have (on average 2.0682080924855493) internal successors, (1789), 1495 states have internal predecessors, (1789), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 01:12:11,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1835 transitions. [2024-11-09 01:12:11,994 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1835 transitions. Word has length 3 [2024-11-09 01:12:11,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:11,995 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 1835 transitions. [2024-11-09 01:12:11,995 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 01:12:11,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1835 transitions. [2024-11-09 01:12:11,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 01:12:11,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:11,996 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:12:12,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:12,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:12,197 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:12,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:12,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1437667611, now seen corresponding path program 1 times [2024-11-09 01:12:12,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:12,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010747301] [2024-11-09 01:12:12,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:12,199 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 01:12:12,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:12,202 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:12,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:12,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 01:12:12,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:12,384 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 01:12:12,393 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 01:12:12,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:12:12,476 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 01:12:12,499 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 01:12:12,500 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 01:12:12,537 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 01:12:12,537 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:12,538 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:12,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1010747301] [2024-11-09 01:12:12,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1010747301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:12,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:12,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:12:12,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981373546] [2024-11-09 01:12:12,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:12,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:12:12,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:12,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:12:12,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:12:12,543 INFO L87 Difference]: Start difference. First operand 1507 states and 1835 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 01:12:16,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:16,737 INFO L93 Difference]: Finished difference Result 1693 states and 2029 transitions. [2024-11-09 01:12:16,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:12:16,738 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 01:12:16,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:16,745 INFO L225 Difference]: With dead ends: 1693 [2024-11-09 01:12:16,746 INFO L226 Difference]: Without dead ends: 1693 [2024-11-09 01:12:16,746 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 01:12:16,747 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 1480 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:16,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 748 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-09 01:12:16,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2024-11-09 01:12:16,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1281. [2024-11-09 01:12:16,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 651 states have (on average 2.0629800307219663) internal successors, (1343), 1270 states have internal predecessors, (1343), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-09 01:12:16,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 1387 transitions. [2024-11-09 01:12:16,786 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 1387 transitions. Word has length 7 [2024-11-09 01:12:16,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:16,786 INFO L471 AbstractCegarLoop]: Abstraction has 1281 states and 1387 transitions. [2024-11-09 01:12:16,787 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 01:12:16,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 1387 transitions. [2024-11-09 01:12:16,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 01:12:16,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:16,787 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:12:16,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:16,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:16,991 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:16,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:16,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1618023058, now seen corresponding path program 1 times [2024-11-09 01:12:16,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:16,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491399596] [2024-11-09 01:12:16,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:16,996 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 01:12:16,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:16,999 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:17,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:17,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:12:17,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:17,174 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 01:12:17,197 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 01:12:17,197 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:17,198 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:17,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491399596] [2024-11-09 01:12:17,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491399596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:17,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:17,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:12:17,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710254751] [2024-11-09 01:12:17,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:17,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:12:17,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:17,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:12:17,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:12:17,200 INFO L87 Difference]: Start difference. First operand 1281 states and 1387 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 01:12:20,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:20,326 INFO L93 Difference]: Finished difference Result 1617 states and 1754 transitions. [2024-11-09 01:12:20,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:12:20,326 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 01:12:20,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:20,333 INFO L225 Difference]: With dead ends: 1617 [2024-11-09 01:12:20,333 INFO L226 Difference]: Without dead ends: 1617 [2024-11-09 01:12:20,333 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 01:12:20,334 INFO L432 NwaCegarLoop]: 1235 mSDtfsCounter, 946 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:20,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 1651 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 01:12:20,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-11-09 01:12:20,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1233. [2024-11-09 01:12:20,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1233 states, 651 states have (on average 1.987711213517665) internal successors, (1294), 1222 states have internal predecessors, (1294), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-09 01:12:20,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1338 transitions. [2024-11-09 01:12:20,372 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1338 transitions. Word has length 8 [2024-11-09 01:12:20,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:20,373 INFO L471 AbstractCegarLoop]: Abstraction has 1233 states and 1338 transitions. [2024-11-09 01:12:20,373 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 01:12:20,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1338 transitions. [2024-11-09 01:12:20,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 01:12:20,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:20,374 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:12:20,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-09 01:12:20,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:20,575 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:20,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:20,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1618023059, now seen corresponding path program 1 times [2024-11-09 01:12:20,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:20,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111313066] [2024-11-09 01:12:20,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:20,577 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 01:12:20,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:20,581 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:20,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:20,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:12:20,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:20,754 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 01:12:20,791 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 01:12:20,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:20,792 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:20,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111313066] [2024-11-09 01:12:20,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111313066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:20,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:20,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:12:20,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229976444] [2024-11-09 01:12:20,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:20,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:12:20,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:20,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:12:20,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:12:20,795 INFO L87 Difference]: Start difference. First operand 1233 states and 1338 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 01:12:24,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:24,871 INFO L93 Difference]: Finished difference Result 1718 states and 1861 transitions. [2024-11-09 01:12:24,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:12:24,873 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 01:12:24,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:24,878 INFO L225 Difference]: With dead ends: 1718 [2024-11-09 01:12:24,879 INFO L226 Difference]: Without dead ends: 1718 [2024-11-09 01:12:24,879 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 01:12:24,880 INFO L432 NwaCegarLoop]: 1436 mSDtfsCounter, 707 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 2038 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:24,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 2038 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-09 01:12:24,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2024-11-09 01:12:24,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1490. [2024-11-09 01:12:24,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 916 states have (on average 1.972707423580786) internal successors, (1807), 1477 states have internal predecessors, (1807), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-09 01:12:24,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1855 transitions. [2024-11-09 01:12:24,913 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1855 transitions. Word has length 8 [2024-11-09 01:12:24,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:24,913 INFO L471 AbstractCegarLoop]: Abstraction has 1490 states and 1855 transitions. [2024-11-09 01:12:24,913 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 01:12:24,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1855 transitions. [2024-11-09 01:12:24,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 01:12:24,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:24,914 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:12:24,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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)] Ended with exit code 0 [2024-11-09 01:12:25,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:25,117 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr527REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:25,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:25,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1163079992, now seen corresponding path program 1 times [2024-11-09 01:12:25,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:25,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374484430] [2024-11-09 01:12:25,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:25,118 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 01:12:25,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:25,119 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:25,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:25,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:12:25,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:25,361 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 01:12:25,361 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:25,362 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:25,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374484430] [2024-11-09 01:12:25,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374484430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:25,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:25,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:12:25,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121130296] [2024-11-09 01:12:25,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:25,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:12:25,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:25,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:12:25,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:12:25,364 INFO L87 Difference]: Start difference. First operand 1490 states and 1855 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:12:25,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:25,787 INFO L93 Difference]: Finished difference Result 2265 states and 2890 transitions. [2024-11-09 01:12:25,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:12:25,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 01:12:25,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:25,794 INFO L225 Difference]: With dead ends: 2265 [2024-11-09 01:12:25,794 INFO L226 Difference]: Without dead ends: 2265 [2024-11-09 01:12:25,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:12:25,795 INFO L432 NwaCegarLoop]: 1452 mSDtfsCounter, 640 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:25,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 2648 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:12:25,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2024-11-09 01:12:25,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 1902. [2024-11-09 01:12:25,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1326 states have (on average 1.9592760180995474) internal successors, (2598), 1887 states have internal predecessors, (2598), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 01:12:25,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2650 transitions. [2024-11-09 01:12:25,848 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2650 transitions. Word has length 11 [2024-11-09 01:12:25,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:25,849 INFO L471 AbstractCegarLoop]: Abstraction has 1902 states and 2650 transitions. [2024-11-09 01:12:25,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 01:12:25,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2650 transitions. [2024-11-09 01:12:25,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 01:12:25,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:25,850 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:12:25,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:26,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:26,052 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr632ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:26,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:26,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1807151951, now seen corresponding path program 1 times [2024-11-09 01:12:26,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:26,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168708687] [2024-11-09 01:12:26,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:26,057 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 01:12:26,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:26,060 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:26,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:26,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 01:12:26,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:26,263 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:12:26,263 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:12:26,264 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 01:12:26,273 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 01:12:26,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 01:12:26,350 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 01:12:26,366 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 01:12:26,366 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:26,367 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:26,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168708687] [2024-11-09 01:12:26,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168708687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:26,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:26,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:12:26,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386889825] [2024-11-09 01:12:26,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:26,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:12:26,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:26,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:12:26,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:12:26,369 INFO L87 Difference]: Start difference. First operand 1902 states and 2650 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 01:12:28,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:28,040 INFO L93 Difference]: Finished difference Result 2625 states and 3669 transitions. [2024-11-09 01:12:28,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:12:28,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-11-09 01:12:28,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:28,051 INFO L225 Difference]: With dead ends: 2625 [2024-11-09 01:12:28,052 INFO L226 Difference]: Without dead ends: 2625 [2024-11-09 01:12:28,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 01:12:28,054 INFO L432 NwaCegarLoop]: 1256 mSDtfsCounter, 518 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 3649 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:28,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 3649 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 01:12:28,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states. [2024-11-09 01:12:28,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 1901. [2024-11-09 01:12:28,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1325 states have (on average 1.959245283018868) internal successors, (2596), 1886 states have internal predecessors, (2596), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 01:12:28,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2648 transitions. [2024-11-09 01:12:28,105 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2648 transitions. Word has length 14 [2024-11-09 01:12:28,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:28,106 INFO L471 AbstractCegarLoop]: Abstraction has 1901 states and 2648 transitions. [2024-11-09 01:12:28,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 01:12:28,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2648 transitions. [2024-11-09 01:12:28,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 01:12:28,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:28,107 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 01:12:28,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-09 01:12:28,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:28,308 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:28,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:28,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1227569708, now seen corresponding path program 1 times [2024-11-09 01:12:28,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:28,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406078183] [2024-11-09 01:12:28,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:28,310 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 01:12:28,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:28,315 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:28,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:28,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 01:12:28,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:28,507 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 01:12:28,507 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:28,507 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:28,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406078183] [2024-11-09 01:12:28,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406078183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:28,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:28,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:12:28,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14489576] [2024-11-09 01:12:28,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:28,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:12:28,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:28,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:12:28,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:12:28,510 INFO L87 Difference]: Start difference. First operand 1901 states and 2648 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 01:12:28,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:28,554 INFO L93 Difference]: Finished difference Result 1839 states and 2558 transitions. [2024-11-09 01:12:28,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:12:28,555 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 01:12:28,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:28,585 INFO L225 Difference]: With dead ends: 1839 [2024-11-09 01:12:28,585 INFO L226 Difference]: Without dead ends: 1839 [2024-11-09 01:12:28,586 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 01:12:28,586 INFO L432 NwaCegarLoop]: 1255 mSDtfsCounter, 71 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2447 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 01:12:28,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2447 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:12:28,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2024-11-09 01:12:28,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1839. [2024-11-09 01:12:28,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1287 states have (on average 1.9471639471639473) internal successors, (2506), 1824 states have internal predecessors, (2506), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 01:12:28,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2558 transitions. [2024-11-09 01:12:28,621 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2558 transitions. Word has length 19 [2024-11-09 01:12:28,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:28,622 INFO L471 AbstractCegarLoop]: Abstraction has 1839 states and 2558 transitions. [2024-11-09 01:12:28,622 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 01:12:28,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2558 transitions. [2024-11-09 01:12:28,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 01:12:28,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:28,622 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 01:12:28,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:28,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:28,823 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:28,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:28,824 INFO L85 PathProgramCache]: Analyzing trace with hash -598262016, now seen corresponding path program 1 times [2024-11-09 01:12:28,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:28,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325940432] [2024-11-09 01:12:28,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:28,825 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 01:12:28,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:28,826 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:28,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:29,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:12:29,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:29,071 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 01:12:29,074 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:29,075 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:29,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325940432] [2024-11-09 01:12:29,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325940432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:29,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:29,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:12:29,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107200209] [2024-11-09 01:12:29,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:29,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:12:29,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:29,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:12:29,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:12:29,077 INFO L87 Difference]: Start difference. First operand 1839 states and 2558 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 01:12:29,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:29,199 INFO L93 Difference]: Finished difference Result 1809 states and 2500 transitions. [2024-11-09 01:12:29,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:12:29,200 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 01:12:29,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:29,206 INFO L225 Difference]: With dead ends: 1809 [2024-11-09 01:12:29,207 INFO L226 Difference]: Without dead ends: 1809 [2024-11-09 01:12:29,207 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 01:12:29,208 INFO L432 NwaCegarLoop]: 1210 mSDtfsCounter, 48 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3604 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 01:12:29,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3604 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:12:29,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2024-11-09 01:12:29,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1809. [2024-11-09 01:12:29,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1809 states, 1271 states have (on average 1.926042486231314) internal successors, (2448), 1794 states have internal predecessors, (2448), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 01:12:29,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1809 states to 1809 states and 2500 transitions. [2024-11-09 01:12:29,253 INFO L78 Accepts]: Start accepts. Automaton has 1809 states and 2500 transitions. Word has length 20 [2024-11-09 01:12:29,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:29,253 INFO L471 AbstractCegarLoop]: Abstraction has 1809 states and 2500 transitions. [2024-11-09 01:12:29,254 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 01:12:29,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1809 states and 2500 transitions. [2024-11-09 01:12:29,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 01:12:29,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:29,255 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 01:12:29,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:12:29,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:29,462 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:29,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:29,462 INFO L85 PathProgramCache]: Analyzing trace with hash 910076078, now seen corresponding path program 1 times [2024-11-09 01:12:29,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:29,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342069710] [2024-11-09 01:12:29,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:29,463 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 01:12:29,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:29,466 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:29,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:29,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:12:29,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:29,671 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 01:12:29,786 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 01:12:29,787 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:29,787 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:29,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342069710] [2024-11-09 01:12:29,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342069710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:29,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:29,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:12:29,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564867548] [2024-11-09 01:12:29,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:29,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:12:29,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:29,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:12:29,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:12:29,789 INFO L87 Difference]: Start difference. First operand 1809 states and 2500 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 01:12:33,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:33,036 INFO L93 Difference]: Finished difference Result 1826 states and 2516 transitions. [2024-11-09 01:12:33,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:12:33,037 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 01:12:33,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:33,043 INFO L225 Difference]: With dead ends: 1826 [2024-11-09 01:12:33,043 INFO L226 Difference]: Without dead ends: 1826 [2024-11-09 01:12:33,043 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 01:12:33,044 INFO L432 NwaCegarLoop]: 783 mSDtfsCounter, 877 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:33,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 1592 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 01:12:33,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2024-11-09 01:12:33,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1805. [2024-11-09 01:12:33,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1271 states have (on average 1.9197482297403619) internal successors, (2440), 1790 states have internal predecessors, (2440), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 01:12:33,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2492 transitions. [2024-11-09 01:12:33,080 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2492 transitions. Word has length 34 [2024-11-09 01:12:33,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:33,080 INFO L471 AbstractCegarLoop]: Abstraction has 1805 states and 2492 transitions. [2024-11-09 01:12:33,081 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 01:12:33,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2492 transitions. [2024-11-09 01:12:33,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 01:12:33,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:33,082 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 01:12:33,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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)] Ended with exit code 0 [2024-11-09 01:12:33,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:33,283 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:33,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:33,284 INFO L85 PathProgramCache]: Analyzing trace with hash 910076079, now seen corresponding path program 1 times [2024-11-09 01:12:33,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:33,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763968666] [2024-11-09 01:12:33,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:33,285 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 01:12:33,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:33,288 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:33,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:33,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 01:12:33,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:33,548 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 01:12:33,816 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 01:12:33,816 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:33,817 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:33,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1763968666] [2024-11-09 01:12:33,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1763968666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:33,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:33,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:12:33,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498342571] [2024-11-09 01:12:33,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:33,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:12:33,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:33,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:12:33,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:12:33,819 INFO L87 Difference]: Start difference. First operand 1805 states and 2492 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 01:12:39,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:39,084 INFO L93 Difference]: Finished difference Result 2038 states and 2499 transitions. [2024-11-09 01:12:39,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:12:39,086 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 01:12:39,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:39,093 INFO L225 Difference]: With dead ends: 2038 [2024-11-09 01:12:39,094 INFO L226 Difference]: Without dead ends: 2038 [2024-11-09 01:12:39,094 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 01:12:39,094 INFO L432 NwaCegarLoop]: 1486 mSDtfsCounter, 634 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 3031 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:39,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 3031 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1581 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-09 01:12:39,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2038 states. [2024-11-09 01:12:39,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2038 to 1801. [2024-11-09 01:12:39,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1271 states have (on average 1.91345397324941) internal successors, (2432), 1786 states have internal predecessors, (2432), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 01:12:39,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2484 transitions. [2024-11-09 01:12:39,129 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2484 transitions. Word has length 34 [2024-11-09 01:12:39,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:39,130 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 2484 transitions. [2024-11-09 01:12:39,130 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 01:12:39,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2484 transitions. [2024-11-09 01:12:39,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 01:12:39,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:39,132 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 01:12:39,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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)] Ended with exit code 0 [2024-11-09 01:12:39,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:39,337 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:39,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:39,338 INFO L85 PathProgramCache]: Analyzing trace with hash 228032613, now seen corresponding path program 1 times [2024-11-09 01:12:39,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:39,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053262503] [2024-11-09 01:12:39,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:39,339 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 01:12:39,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:39,343 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:39,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:39,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:12:39,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:39,739 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 01:12:39,739 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:39,740 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:39,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053262503] [2024-11-09 01:12:39,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053262503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:39,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:39,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:12:39,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457844686] [2024-11-09 01:12:39,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:39,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:12:39,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:39,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:12:39,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:12:39,743 INFO L87 Difference]: Start difference. First operand 1801 states and 2484 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 01:12:39,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:39,867 INFO L93 Difference]: Finished difference Result 1789 states and 2464 transitions. [2024-11-09 01:12:39,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:12:39,868 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 01:12:39,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:39,878 INFO L225 Difference]: With dead ends: 1789 [2024-11-09 01:12:39,878 INFO L226 Difference]: Without dead ends: 1789 [2024-11-09 01:12:39,879 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 01:12:39,880 INFO L432 NwaCegarLoop]: 1204 mSDtfsCounter, 21 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:39,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3581 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:12:39,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1789 states. [2024-11-09 01:12:39,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1789 to 1789. [2024-11-09 01:12:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1789 states, 1259 states have (on average 1.915806195393169) internal successors, (2412), 1774 states have internal predecessors, (2412), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-09 01:12:39,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1789 states to 1789 states and 2464 transitions. [2024-11-09 01:12:39,920 INFO L78 Accepts]: Start accepts. Automaton has 1789 states and 2464 transitions. Word has length 53 [2024-11-09 01:12:39,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:39,920 INFO L471 AbstractCegarLoop]: Abstraction has 1789 states and 2464 transitions. [2024-11-09 01:12:39,921 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 01:12:39,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1789 states and 2464 transitions. [2024-11-09 01:12:39,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 01:12:39,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:39,924 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:12:39,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:40,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:40,125 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:40,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:40,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1809034087, now seen corresponding path program 1 times [2024-11-09 01:12:40,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:40,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212762202] [2024-11-09 01:12:40,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:40,127 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 01:12:40,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:40,131 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:40,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:40,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 01:12:40,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:40,613 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 01:12:40,623 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 01:12:41,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 01:12:41,550 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 01:12:41,576 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 01:12:41,576 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 01:12:41,599 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 01:12:41,599 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:41,600 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:41,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212762202] [2024-11-09 01:12:41,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212762202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:41,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:41,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:12:41,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900746684] [2024-11-09 01:12:41,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:41,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:12:41,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:41,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:12:41,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:12:41,604 INFO L87 Difference]: Start difference. First operand 1789 states and 2464 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 01:12:44,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:44,500 INFO L93 Difference]: Finished difference Result 1762 states and 2438 transitions. [2024-11-09 01:12:44,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:12:44,501 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 01:12:44,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:44,506 INFO L225 Difference]: With dead ends: 1762 [2024-11-09 01:12:44,507 INFO L226 Difference]: Without dead ends: 1762 [2024-11-09 01:12:44,507 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 01:12:44,507 INFO L432 NwaCegarLoop]: 600 mSDtfsCounter, 1618 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1623 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:44,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1623 Valid, 791 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 01:12:44,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2024-11-09 01:12:44,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1321. [2024-11-09 01:12:44,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 834 states have (on average 1.830935251798561) internal successors, (1527), 1309 states have internal predecessors, (1527), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 01:12:44,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1573 transitions. [2024-11-09 01:12:44,533 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1573 transitions. Word has length 61 [2024-11-09 01:12:44,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:44,533 INFO L471 AbstractCegarLoop]: Abstraction has 1321 states and 1573 transitions. [2024-11-09 01:12:44,534 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 01:12:44,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1573 transitions. [2024-11-09 01:12:44,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 01:12:44,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:44,535 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 01:12:44,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:12:44,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:44,736 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:44,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:44,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1763462491, now seen corresponding path program 1 times [2024-11-09 01:12:44,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:44,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169790264] [2024-11-09 01:12:44,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:44,737 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 01:12:44,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:44,742 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:44,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:45,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 01:12:45,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:45,121 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 01:12:45,141 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 01:12:45,171 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 01:12:45,190 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 01:12:45,190 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:45,190 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:45,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169790264] [2024-11-09 01:12:45,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169790264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:45,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:45,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:12:45,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473798255] [2024-11-09 01:12:45,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:45,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:12:45,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:45,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:12:45,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:12:45,193 INFO L87 Difference]: Start difference. First operand 1321 states and 1573 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 01:12:49,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:49,112 INFO L93 Difference]: Finished difference Result 1320 states and 1572 transitions. [2024-11-09 01:12:49,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:12:49,113 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 01:12:49,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:49,118 INFO L225 Difference]: With dead ends: 1320 [2024-11-09 01:12:49,118 INFO L226 Difference]: Without dead ends: 1320 [2024-11-09 01:12:49,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:12:49,119 INFO L432 NwaCegarLoop]: 1175 mSDtfsCounter, 2 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:49,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3110 Invalid, 1598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1597 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-09 01:12:49,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-11-09 01:12:49,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2024-11-09 01:12:49,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 834 states have (on average 1.829736211031175) internal successors, (1526), 1308 states have internal predecessors, (1526), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 01:12:49,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1572 transitions. [2024-11-09 01:12:49,143 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1572 transitions. Word has length 66 [2024-11-09 01:12:49,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:49,143 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 1572 transitions. [2024-11-09 01:12:49,144 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 01:12:49,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1572 transitions. [2024-11-09 01:12:49,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 01:12:49,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:49,145 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 01:12:49,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:49,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:49,346 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:49,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:49,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1763462490, now seen corresponding path program 1 times [2024-11-09 01:12:49,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:49,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757244749] [2024-11-09 01:12:49,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:49,348 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 01:12:49,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:49,352 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:49,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:49,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 01:12:49,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:49,806 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 01:12:49,840 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 01:12:49,847 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 01:12:49,929 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 01:12:49,957 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 01:12:49,957 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:49,958 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:49,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757244749] [2024-11-09 01:12:49,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757244749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:49,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:49,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:12:49,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759640359] [2024-11-09 01:12:49,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:49,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:12:49,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:49,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:12:49,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:12:49,961 INFO L87 Difference]: Start difference. First operand 1320 states and 1572 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 01:12:55,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:55,178 INFO L93 Difference]: Finished difference Result 1319 states and 1571 transitions. [2024-11-09 01:12:55,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:12:55,180 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 01:12:55,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:55,184 INFO L225 Difference]: With dead ends: 1319 [2024-11-09 01:12:55,184 INFO L226 Difference]: Without dead ends: 1319 [2024-11-09 01:12:55,185 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 01:12:55,185 INFO L432 NwaCegarLoop]: 1175 mSDtfsCounter, 1 mSDsluCounter, 1991 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:55,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3166 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-09 01:12:55,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2024-11-09 01:12:55,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1319. [2024-11-09 01:12:55,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 833 states have (on average 1.8307322929171668) internal successors, (1525), 1307 states have internal predecessors, (1525), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 01:12:55,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1571 transitions. [2024-11-09 01:12:55,211 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1571 transitions. Word has length 66 [2024-11-09 01:12:55,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:55,212 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 1571 transitions. [2024-11-09 01:12:55,212 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 01:12:55,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1571 transitions. [2024-11-09 01:12:55,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 01:12:55,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:55,214 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 01:12:55,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:55,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:55,418 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:55,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:55,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1126296300, now seen corresponding path program 1 times [2024-11-09 01:12:55,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:55,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475925031] [2024-11-09 01:12:55,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:55,420 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 01:12:55,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:55,421 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:55,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:55,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:12:55,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:55,822 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 01:12:55,822 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:12:55,822 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:55,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475925031] [2024-11-09 01:12:55,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475925031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:55,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:55,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 01:12:55,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160832976] [2024-11-09 01:12:55,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:55,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 01:12:55,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:55,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 01:12:55,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 01:12:55,825 INFO L87 Difference]: Start difference. First operand 1319 states and 1571 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 01:12:55,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:55,875 INFO L93 Difference]: Finished difference Result 1322 states and 1575 transitions. [2024-11-09 01:12:55,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 01:12:55,877 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 01:12:55,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:55,882 INFO L225 Difference]: With dead ends: 1322 [2024-11-09 01:12:55,882 INFO L226 Difference]: Without dead ends: 1322 [2024-11-09 01:12:55,883 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 01:12:55,883 INFO L432 NwaCegarLoop]: 1175 mSDtfsCounter, 0 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3520 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 01:12:55,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3520 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 01:12:55,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2024-11-09 01:12:55,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1322. [2024-11-09 01:12:55,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 835 states have (on average 1.829940119760479) internal successors, (1528), 1310 states have internal predecessors, (1528), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 01:12:55,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1575 transitions. [2024-11-09 01:12:55,915 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1575 transitions. Word has length 74 [2024-11-09 01:12:55,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:55,915 INFO L471 AbstractCegarLoop]: Abstraction has 1322 states and 1575 transitions. [2024-11-09 01:12:55,915 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 01:12:55,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1575 transitions. [2024-11-09 01:12:55,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 01:12:55,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:55,917 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 01:12:55,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:56,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:56,117 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:56,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:56,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1214362432, now seen corresponding path program 1 times [2024-11-09 01:12:56,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:56,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655881152] [2024-11-09 01:12:56,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:56,119 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 01:12:56,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:56,123 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:56,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:56,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:12:56,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:56,611 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 01:12:56,612 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:12:56,719 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 01:12:56,719 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:56,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655881152] [2024-11-09 01:12:56,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655881152] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:12:56,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1757445277] [2024-11-09 01:12:56,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:56,720 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:12:56,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:12:56,724 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:12:56,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-09 01:12:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:57,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:12:57,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:57,405 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 01:12:57,405 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:12:57,474 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 01:12:57,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1757445277] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:12:57,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051085238] [2024-11-09 01:12:57,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:57,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:12:57,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:12:57,478 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:12:57,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 01:12:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:57,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:12:57,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:57,861 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 01:12:57,861 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:12:57,908 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 01:12:57,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051085238] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:12:57,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 01:12:57,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2024-11-09 01:12:57,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922142451] [2024-11-09 01:12:57,910 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 01:12:57,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 01:12:57,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:12:57,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 01:12:57,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:12:57,912 INFO L87 Difference]: Start difference. First operand 1322 states and 1575 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 01:12:58,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:58,157 INFO L93 Difference]: Finished difference Result 1334 states and 1592 transitions. [2024-11-09 01:12:58,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 01:12:58,158 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 01:12:58,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:58,162 INFO L225 Difference]: With dead ends: 1334 [2024-11-09 01:12:58,162 INFO L226 Difference]: Without dead ends: 1334 [2024-11-09 01:12:58,162 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 01:12:58,163 INFO L432 NwaCegarLoop]: 1175 mSDtfsCounter, 5 mSDsluCounter, 7025 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 8200 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:58,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 8200 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:12:58,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2024-11-09 01:12:58,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1332. [2024-11-09 01:12:58,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 844 states have (on average 1.8281990521327014) internal successors, (1543), 1319 states have internal predecessors, (1543), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 01:12:58,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1590 transitions. [2024-11-09 01:12:58,190 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1590 transitions. Word has length 75 [2024-11-09 01:12:58,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:58,190 INFO L471 AbstractCegarLoop]: Abstraction has 1332 states and 1590 transitions. [2024-11-09 01:12:58,190 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 01:12:58,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1590 transitions. [2024-11-09 01:12:58,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-09 01:12:58,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:58,192 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 01:12:58,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:58,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-09 01:12:58,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-11-09 01:12:58,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 01:12:58,796 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:12:58,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:58,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2029740012, now seen corresponding path program 2 times [2024-11-09 01:12:58,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:12:58,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048917009] [2024-11-09 01:12:58,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 01:12:58,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:12:58,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:12:58,799 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:58,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:12:59,340 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 01:12:59,340 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:12:59,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 01:12:59,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:12:59,439 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 01:12:59,439 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:12:59,671 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 01:12:59,671 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:12:59,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048917009] [2024-11-09 01:12:59,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048917009] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:12:59,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [518196839] [2024-11-09 01:12:59,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 01:12:59,672 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:12:59,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:12:59,673 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:12:59,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-09 01:13:01,664 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 01:13:01,665 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:13:01,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 01:13:01,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:13:01,741 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 01:13:01,741 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:13:01,831 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 01:13:01,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [518196839] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:13:01,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824135801] [2024-11-09 01:13:01,832 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 01:13:01,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:13:01,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:13:01,835 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:13:01,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 01:13:15,950 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 01:13:15,951 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:13:15,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 01:13:15,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:13:15,976 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 01:13:16,157 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 01:13:16,158 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 01:13:16,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:13:16,543 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-09 01:13:16,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-09 01:13:16,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-09 01:13:16,669 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 01:13:16,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:13:16,811 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-09 01:13:16,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-09 01:13:16,827 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1590 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_1590) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)) |c_ULTIMATE.start_main_#t~mem36#1.base|)) is different from false [2024-11-09 01:13:16,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824135801] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:13:16,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 5 imperfect interpolant sequences. [2024-11-09 01:13:16,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 10] total 23 [2024-11-09 01:13:16,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972658193] [2024-11-09 01:13:16,830 INFO L85 oduleStraightlineAll]: Using 5 imperfect interpolants to construct interpolant automaton [2024-11-09 01:13:16,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 01:13:16,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:13:16,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 01:13:16,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=467, Unknown=1, NotChecked=44, Total=600 [2024-11-09 01:13:16,832 INFO L87 Difference]: Start difference. First operand 1332 states and 1590 transitions. Second operand has 23 states, 22 states have (on average 6.954545454545454) internal successors, (153), 22 states have internal predecessors, (153), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:13:32,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:13:32,543 INFO L93 Difference]: Finished difference Result 1356 states and 1621 transitions. [2024-11-09 01:13:32,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 01:13:32,544 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.954545454545454) internal successors, (153), 22 states have internal predecessors, (153), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 78 [2024-11-09 01:13:32,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:13:32,558 INFO L225 Difference]: With dead ends: 1356 [2024-11-09 01:13:32,558 INFO L226 Difference]: Without dead ends: 1352 [2024-11-09 01:13:32,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=407, Invalid=2046, Unknown=1, NotChecked=96, Total=2550 [2024-11-09 01:13:32,560 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 868 mSDsluCounter, 7883 mSDsCounter, 0 mSdLazyCounter, 7368 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 8583 SdHoareTripleChecker+Invalid, 7393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 7368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:13:32,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 8583 Invalid, 7393 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 7368 Invalid, 0 Unknown, 0 Unchecked, 14.3s Time] [2024-11-09 01:13:32,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2024-11-09 01:13:32,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1340. [2024-11-09 01:13:32,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 853 states have (on average 1.8218053927315359) internal successors, (1554), 1327 states have internal predecessors, (1554), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 01:13:32,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1601 transitions. [2024-11-09 01:13:32,616 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1601 transitions. Word has length 78 [2024-11-09 01:13:32,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:13:32,616 INFO L471 AbstractCegarLoop]: Abstraction has 1340 states and 1601 transitions. [2024-11-09 01:13:32,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.954545454545454) internal successors, (153), 22 states have internal predecessors, (153), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 01:13:32,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1601 transitions. [2024-11-09 01:13:32,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 01:13:32,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:13:32,618 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 01:13:32,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-09 01:13:32,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:13:33,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2024-11-09 01:13:33,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 01:13:33,219 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:13:33,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:13:33,219 INFO L85 PathProgramCache]: Analyzing trace with hash -124199059, now seen corresponding path program 1 times [2024-11-09 01:13:33,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:13:33,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329406520] [2024-11-09 01:13:33,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:13:33,220 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 01:13:33,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:13:33,221 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:13:33,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:13:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:13:33,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 01:13:33,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:13:33,945 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 01:13:33,946 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:13:34,603 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 01:13:34,603 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:13:34,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329406520] [2024-11-09 01:13:34,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329406520] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:13:34,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1604322749] [2024-11-09 01:13:34,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:13:34,604 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:13:34,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:13:34,608 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:13:34,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-09 01:13:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:13:35,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 01:13:35,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:13:35,456 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 01:13:35,456 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:13:35,639 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 01:13:35,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1604322749] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:13:35,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709707339] [2024-11-09 01:13:35,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:13:35,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:13:35,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:13:35,641 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:13:35,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 01:13:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:13:36,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 01:13:36,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:13:36,163 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 01:13:36,164 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:13:37,142 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 01:13:37,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709707339] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:13:37,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 01:13:37,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 14, 14] total 38 [2024-11-09 01:13:37,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262501297] [2024-11-09 01:13:37,142 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 01:13:37,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-09 01:13:37,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:13:37,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-09 01:13:37,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=959, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:13:37,145 INFO L87 Difference]: Start difference. First operand 1340 states and 1601 transitions. Second operand has 38 states, 38 states have (on average 2.8684210526315788) internal successors, (109), 38 states have internal predecessors, (109), 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 01:13:39,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:13:39,742 INFO L93 Difference]: Finished difference Result 1366 states and 1642 transitions. [2024-11-09 01:13:39,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-09 01:13:39,742 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.8684210526315788) internal successors, (109), 38 states have internal predecessors, (109), 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 84 [2024-11-09 01:13:39,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:13:39,745 INFO L225 Difference]: With dead ends: 1366 [2024-11-09 01:13:39,746 INFO L226 Difference]: Without dead ends: 1360 [2024-11-09 01:13:39,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1168, Invalid=2254, Unknown=0, NotChecked=0, Total=3422 [2024-11-09 01:13:39,747 INFO L432 NwaCegarLoop]: 1175 mSDtfsCounter, 21 mSDsluCounter, 14069 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 15244 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:13:39,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 15244 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 01:13:39,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2024-11-09 01:13:39,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1358. [2024-11-09 01:13:39,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 871 states have (on average 1.8105625717566016) internal successors, (1577), 1345 states have internal predecessors, (1577), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 01:13:39,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 1624 transitions. [2024-11-09 01:13:39,770 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 1624 transitions. Word has length 84 [2024-11-09 01:13:39,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:13:39,770 INFO L471 AbstractCegarLoop]: Abstraction has 1358 states and 1624 transitions. [2024-11-09 01:13:39,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.8684210526315788) internal successors, (109), 38 states have internal predecessors, (109), 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 01:13:39,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 1624 transitions. [2024-11-09 01:13:39,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 01:13:39,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:13:39,772 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:13:39,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-09 01:13:39,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2024-11-09 01:13:40,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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)] Forceful destruction successful, exit code 0 [2024-11-09 01:13:40,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:13:40,373 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:13:40,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:13:40,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1993539181, now seen corresponding path program 2 times [2024-11-09 01:13:40,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:13:40,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511120928] [2024-11-09 01:13:40,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 01:13:40,374 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 01:13:40,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:13:40,375 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:13:40,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 (27)] Waiting until timeout for monitored process [2024-11-09 01:13:41,007 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 01:13:41,007 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:13:41,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 01:13:41,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:13:41,809 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:13:41,809 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:13:44,199 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:13:44,200 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:13:44,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511120928] [2024-11-09 01:13:44,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511120928] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:13:44,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [628937533] [2024-11-09 01:13:44,200 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 01:13:44,200 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:13:44,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:13:44,201 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:13:44,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2024-11-09 01:13:46,315 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 01:13:46,316 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:13:46,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 01:13:46,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:13:46,456 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:13:46,456 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:13:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:13:46,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [628937533] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:13:46,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740891019] [2024-11-09 01:13:46,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 01:13:46,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:13:46,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:13:46,837 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:13:46,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 01:14:04,602 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 01:14:04,602 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:14:04,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 01:14:04,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:14:04,800 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:04,800 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:14:08,270 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:14:08,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740891019] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:14:08,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 01:14:08,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26, 26, 26, 26] total 74 [2024-11-09 01:14:08,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915409564] [2024-11-09 01:14:08,271 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 01:14:08,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-11-09 01:14:08,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 01:14:08,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-11-09 01:14:08,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1613, Invalid=3789, Unknown=0, NotChecked=0, Total=5402 [2024-11-09 01:14:08,275 INFO L87 Difference]: Start difference. First operand 1358 states and 1624 transitions. Second operand has 74 states, 74 states have (on average 1.9594594594594594) internal successors, (145), 74 states have internal predecessors, (145), 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 01:14:19,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:14:19,712 INFO L93 Difference]: Finished difference Result 1402 states and 1701 transitions. [2024-11-09 01:14:19,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-09 01:14:19,713 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 1.9594594594594594) internal successors, (145), 74 states have internal predecessors, (145), 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 96 [2024-11-09 01:14:19,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:14:19,717 INFO L225 Difference]: With dead ends: 1402 [2024-11-09 01:14:19,717 INFO L226 Difference]: Without dead ends: 1396 [2024-11-09 01:14:19,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=4483, Invalid=9323, Unknown=0, NotChecked=0, Total=13806 [2024-11-09 01:14:19,723 INFO L432 NwaCegarLoop]: 1175 mSDtfsCounter, 33 mSDsluCounter, 28131 mSDsCounter, 0 mSdLazyCounter, 2092 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 29306 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:14:19,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 29306 Invalid, 2132 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 2092 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-09 01:14:19,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1396 states. [2024-11-09 01:14:19,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1396 to 1394. [2024-11-09 01:14:19,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 907 states have (on average 1.7916207276736493) internal successors, (1625), 1381 states have internal predecessors, (1625), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 01:14:19,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1672 transitions. [2024-11-09 01:14:19,752 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1672 transitions. Word has length 96 [2024-11-09 01:14:19,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:14:19,752 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1672 transitions. [2024-11-09 01:14:19,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 1.9594594594594594) internal successors, (145), 74 states have internal predecessors, (145), 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 01:14:19,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1672 transitions. [2024-11-09 01:14:19,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-09 01:14:19,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:14:19,755 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:14:19,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-09 01:14:19,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 (27)] Ended with exit code 0 [2024-11-09 01:14:20,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2024-11-09 01:14:20,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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=3,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 01:14:20,357 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-09 01:14:20,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:14:20,357 INFO L85 PathProgramCache]: Analyzing trace with hash 653292013, now seen corresponding path program 3 times [2024-11-09 01:14:20,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:14:20,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726805880] [2024-11-09 01:14:20,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:14:20,358 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 01:14:20,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:14:20,362 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 01:14:20,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/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 (30)] Waiting until timeout for monitored process [2024-11-09 01:14:23,544 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2024-11-09 01:14:23,544 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:14:23,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 110 conjuncts are in the unsatisfiable core [2024-11-09 01:14:23,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:14:23,594 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 01:14:24,064 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 01:14:24,094 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 01:14:24,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-09 01:14:24,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 01:14:24,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 01:14:24,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-09 01:14:24,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-09 01:14:25,637 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-09 01:14:25,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2024-11-09 01:14:25,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-09 01:14:25,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-09 01:14:25,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-09 01:14:25,745 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-09 01:14:25,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:14:27,379 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3350 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3350) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0)))) (forall ((v_ArrVal_3350 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3351 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3350) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3351) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-09 01:14:27,385 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 01:14:27,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1726805880] [2024-11-09 01:14:27,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1726805880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:14:27,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1556807785] [2024-11-09 01:14:27,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:14:27,386 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 01:14:27,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 01:14:27,387 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 01:14:27,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-09 01:21:06,232 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2024-11-09 01:21:06,232 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 01:21:06,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 110 conjuncts are in the unsatisfiable core [2024-11-09 01:21:06,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:21:06,423 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 01:21:06,643 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 01:21:06,643 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 01:21:06,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 01:21:06,711 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 01:21:06,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-09 01:21:06,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-09 01:21:06,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-09 01:21:08,009 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-09 01:21:08,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-09 01:21:08,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-09 01:21:08,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-09 01:21:08,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-09 01:21:08,147 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-09 01:21:08,148 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:21:09,959 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3905 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3905) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv16 32)) (bvadd .cse0 (_ bv20 32))))) (forall ((v_ArrVal_3905 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3906 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3905) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3906) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-09 01:21:09,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1556807785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:21:09,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144125439] [2024-11-09 01:21:09,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 01:21:09,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:21:09,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:21:09,973 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:21:09,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949ae2bb-ce12-456e-a280-165734c775c2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process