./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c302c0a70f15041d912ede4a343504399632b0722d257e8570893a260b2b8dc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:24:38,533 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:24:38,634 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-09 05:24:38,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:24:38,645 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:24:38,682 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:24:38,682 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:24:38,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:24:38,683 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:24:38,684 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:24:38,684 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:24:38,685 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:24:38,685 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:24:38,688 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:24:38,688 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:24:38,689 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:24:38,689 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:24:38,689 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:24:38,690 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:24:38,690 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:24:38,691 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:24:38,691 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:24:38,692 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:24:38,692 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:24:38,693 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:24:38,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:24:38,693 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:24:38,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:24:38,694 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:24:38,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:24:38,695 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:24:38,695 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:24:38,696 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:24:38,696 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:24:38,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:24:38,696 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:24:38,697 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:24:38,697 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:24:38,697 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:24:38,698 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:24:38,698 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:24:38,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:24:38,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:24:38,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:24:38,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:24:38,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:24:38,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:24:38,700 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:24:38,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:24:38,701 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:24:38,701 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:24:38,701 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:24:38,702 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_74721988-9965-4258-97e6-279c2cd44d74/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c302c0a70f15041d912ede4a343504399632b0722d257e8570893a260b2b8dc [2024-11-09 05:24:38,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:24:39,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:24:39,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:24:39,020 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:24:39,020 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:24:39,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i Unable to find full path for "g++" [2024-11-09 05:24:41,044 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:24:41,477 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:24:41,477 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i [2024-11-09 05:24:41,506 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/data/464675ccb/652ccd542e04468bb9a0ab144b2ed44a/FLAG03f6aae5d [2024-11-09 05:24:41,524 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/data/464675ccb/652ccd542e04468bb9a0ab144b2ed44a [2024-11-09 05:24:41,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:24:41,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:24:41,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:24:41,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:24:41,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:24:41,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:24:41" (1/1) ... [2024-11-09 05:24:41,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d4ca475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:41, skipping insertion in model container [2024-11-09 05:24:41,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:24:41" (1/1) ... [2024-11-09 05:24:41,627 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:24:42,531 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,553 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,557 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,565 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,576 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,617 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,618 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,620 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,620 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,623 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,626 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,628 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,629 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,631 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,640 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:42,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:24:42,668 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-09 05:24:42,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c3cbf6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:42, skipping insertion in model container [2024-11-09 05:24:42,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:24:42,670 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 05:24:42,672 INFO L158 Benchmark]: Toolchain (without parser) took 1141.63ms. Allocated memory was 121.6MB in the beginning and 157.3MB in the end (delta: 35.7MB). Free memory was 79.0MB in the beginning and 112.0MB in the end (delta: -33.0MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2024-11-09 05:24:42,673 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:24:42,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1138.11ms. Allocated memory was 121.6MB in the beginning and 157.3MB in the end (delta: 35.7MB). Free memory was 79.0MB in the beginning and 112.0MB in the end (delta: -33.0MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2024-11-09 05:24:42,676 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1138.11ms. Allocated memory was 121.6MB in the beginning and 157.3MB in the end (delta: 35.7MB). Free memory was 79.0MB in the beginning and 112.0MB in the end (delta: -33.0MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2239]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c302c0a70f15041d912ede4a343504399632b0722d257e8570893a260b2b8dc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:24:44,972 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:24:45,083 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-09 05:24:45,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:24:45,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:24:45,133 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:24:45,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:24:45,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:24:45,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:24:45,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:24:45,137 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:24:45,138 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:24:45,138 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:24:45,138 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:24:45,139 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:24:45,139 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:24:45,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:24:45,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:24:45,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:24:45,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:24:45,145 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:24:45,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:24:45,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:24:45,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:24:45,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:24:45,150 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:24:45,151 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:24:45,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:24:45,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:24:45,152 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:24:45,152 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:24:45,156 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:24:45,156 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:24:45,156 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:24:45,157 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:24:45,157 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:24:45,158 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:24:45,158 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:24:45,158 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:24:45,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:24:45,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:24:45,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:24:45,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:24:45,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:24:45,161 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:24:45,161 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:24:45,161 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:24:45,162 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:24:45,162 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_74721988-9965-4258-97e6-279c2cd44d74/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c302c0a70f15041d912ede4a343504399632b0722d257e8570893a260b2b8dc [2024-11-09 05:24:45,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:24:45,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:24:45,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:24:45,677 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:24:45,678 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:24:45,680 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i Unable to find full path for "g++" [2024-11-09 05:24:47,629 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:24:48,075 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:24:48,076 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-2.i [2024-11-09 05:24:48,096 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/data/b2d3e2221/f4e1a08359e74953b0e839780a6bc2a4/FLAG00bcc5034 [2024-11-09 05:24:48,113 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/data/b2d3e2221/f4e1a08359e74953b0e839780a6bc2a4 [2024-11-09 05:24:48,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:24:48,117 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:24:48,119 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:24:48,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:24:48,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:24:48,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:24:48" (1/1) ... [2024-11-09 05:24:48,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61714227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:48, skipping insertion in model container [2024-11-09 05:24:48,128 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:24:48" (1/1) ... [2024-11-09 05:24:48,235 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:24:49,193 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,224 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,228 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,236 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,245 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,289 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,304 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 05:24:49,306 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,309 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,311 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,313 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,315 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 05:24:49,316 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,316 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,320 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:24:49,338 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 05:24:49,358 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:24:49,441 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,453 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,455 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,457 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,461 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,478 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,479 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,481 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,481 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,500 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,502 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,503 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,504 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,505 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,508 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:24:49,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:24:49,513 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:24:49,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:24:49,689 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:24:49,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:49 WrapperNode [2024-11-09 05:24:49,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:24:49,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:24:49,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:24:49,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:24:49,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:49" (1/1) ... [2024-11-09 05:24:49,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:49" (1/1) ... [2024-11-09 05:24:49,850 INFO L138 Inliner]: procedures = 180, calls = 775, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3008 [2024-11-09 05:24:49,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:24:49,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:24:49,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:24:49,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:24:49,865 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:49" (1/1) ... [2024-11-09 05:24:49,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:49" (1/1) ... [2024-11-09 05:24:49,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:49" (1/1) ... [2024-11-09 05:24:49,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:49" (1/1) ... [2024-11-09 05:24:50,009 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:49" (1/1) ... [2024-11-09 05:24:50,049 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:49" (1/1) ... [2024-11-09 05:24:50,061 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:49" (1/1) ... [2024-11-09 05:24:50,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:49" (1/1) ... [2024-11-09 05:24:50,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:24:50,097 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:24:50,097 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:24:50,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:24:50,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:49" (1/1) ... [2024-11-09 05:24:50,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:24:50,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:24:50,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:24:50,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:24:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-09 05:24:50,176 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-09 05:24:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 05:24:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 05:24:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:24:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:24:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:24:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:24:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:24:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:24:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:24:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:24:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:24:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:24:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 05:24:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:24:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:24:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:24:50,423 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:24:50,425 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:25:01,189 INFO L? ?]: Removed 635 outVars from TransFormulas that were not future-live. [2024-11-09 05:25:01,190 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:25:01,251 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:25:01,251 INFO L316 CfgBuilder]: Removed 58 assume(true) statements. [2024-11-09 05:25:01,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:25:01 BoogieIcfgContainer [2024-11-09 05:25:01,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:25:01,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:25:01,254 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:25:01,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:25:01,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:24:48" (1/3) ... [2024-11-09 05:25:01,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220f0d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:25:01, skipping insertion in model container [2024-11-09 05:25:01,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:24:49" (2/3) ... [2024-11-09 05:25:01,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@220f0d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:25:01, skipping insertion in model container [2024-11-09 05:25:01,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:25:01" (3/3) ... [2024-11-09 05:25:01,260 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test9-2.i [2024-11-09 05:25:01,277 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:25:01,278 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 05:25:01,363 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:25:01,369 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;@3b48974a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:25:01,370 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 05:25:01,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 1211 states, 700 states have (on average 1.8971428571428572) internal successors, (1328), 1204 states have internal predecessors, (1328), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2024-11-09 05:25:01,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 05:25:01,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:25:01,387 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:25:01,387 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:25:01,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:25:01,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1401065190, now seen corresponding path program 1 times [2024-11-09 05:25:01,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:25:01,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186115909] [2024-11-09 05:25:01,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:01,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:01,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:25:01,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:25:01,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 05:25:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:01,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 05:25:01,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:01,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:25:01,661 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:25:01,662 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:25:01,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186115909] [2024-11-09 05:25:01,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186115909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:25:01,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:25:01,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:25:01,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381558409] [2024-11-09 05:25:01,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:25:01,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:25:01,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:25:01,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:25:01,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:25:01,710 INFO L87 Difference]: Start difference. First operand has 1211 states, 700 states have (on average 1.8971428571428572) internal successors, (1328), 1204 states have internal predecessors, (1328), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:25:01,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:25:01,845 INFO L93 Difference]: Finished difference Result 1209 states and 2271 transitions. [2024-11-09 05:25:01,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:25:01,847 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 05:25:01,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:25:01,875 INFO L225 Difference]: With dead ends: 1209 [2024-11-09 05:25:01,875 INFO L226 Difference]: Without dead ends: 1207 [2024-11-09 05:25:01,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:25:01,880 INFO L432 NwaCegarLoop]: 2271 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:25:01,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:25:01,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-11-09 05:25:02,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2024-11-09 05:25:02,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 698 states have (on average 1.8065902578796562) internal successors, (1261), 1200 states have internal predecessors, (1261), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-09 05:25:02,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 2269 transitions. [2024-11-09 05:25:02,314 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 2269 transitions. Word has length 11 [2024-11-09 05:25:02,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:25:02,315 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 2269 transitions. [2024-11-09 05:25:02,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:25:02,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 2269 transitions. [2024-11-09 05:25:02,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 05:25:02,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:25:02,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:25:02,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 05:25:02,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:02,520 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:25:02,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:25:02,521 INFO L85 PathProgramCache]: Analyzing trace with hash -202878029, now seen corresponding path program 1 times [2024-11-09 05:25:02,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:25:02,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504395533] [2024-11-09 05:25:02,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:02,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:02,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:25:02,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:25:02,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 05:25:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:02,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:25:02,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:02,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:25:02,863 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:25:02,864 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:25:02,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504395533] [2024-11-09 05:25:02,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504395533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:25:02,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:25:02,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:25:02,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860748800] [2024-11-09 05:25:02,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:25:02,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:25:02,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:25:02,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:25:02,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:25:02,870 INFO L87 Difference]: Start difference. First operand 1207 states and 2269 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:25:03,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:25:03,813 INFO L93 Difference]: Finished difference Result 2331 states and 4432 transitions. [2024-11-09 05:25:03,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:25:03,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2024-11-09 05:25:03,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:25:03,835 INFO L225 Difference]: With dead ends: 2331 [2024-11-09 05:25:03,835 INFO L226 Difference]: Without dead ends: 2331 [2024-11-09 05:25:03,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 05:25:03,837 INFO L432 NwaCegarLoop]: 2257 mSDtfsCounter, 1153 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 4500 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:25:03,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 4500 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:25:03,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2024-11-09 05:25:04,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 2299. [2024-11-09 05:25:04,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 1290 states have (on average 1.8465116279069766) internal successors, (2382), 2292 states have internal predecessors, (2382), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-09 05:25:04,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 4390 transitions. [2024-11-09 05:25:04,290 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 4390 transitions. Word has length 13 [2024-11-09 05:25:04,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:25:04,291 INFO L471 AbstractCegarLoop]: Abstraction has 2299 states and 4390 transitions. [2024-11-09 05:25:04,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:25:04,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 4390 transitions. [2024-11-09 05:25:04,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 05:25:04,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:25:04,292 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:25:04,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 05:25:04,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:04,493 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:25:04,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:25:04,494 INFO L85 PathProgramCache]: Analyzing trace with hash -201030987, now seen corresponding path program 1 times [2024-11-09 05:25:04,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:25:04,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571218031] [2024-11-09 05:25:04,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:04,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:04,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:25:04,499 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:25:04,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 05:25:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:04,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:25:04,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:04,762 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:25:04,763 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:25:04,778 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 33 treesize of output 31 [2024-11-09 05:25:04,865 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:25:04,865 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 62 treesize of output 22 [2024-11-09 05:25:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:25:04,910 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:25:04,910 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:25:04,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571218031] [2024-11-09 05:25:04,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571218031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:25:04,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:25:04,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:25:04,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201572126] [2024-11-09 05:25:04,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:25:04,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:25:04,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:25:04,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:25:04,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:25:04,915 INFO L87 Difference]: Start difference. First operand 2299 states and 4390 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:25:08,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:25:14,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:25:15,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:25:15,328 INFO L93 Difference]: Finished difference Result 4395 states and 8518 transitions. [2024-11-09 05:25:15,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:25:15,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-11-09 05:25:15,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:25:15,357 INFO L225 Difference]: With dead ends: 4395 [2024-11-09 05:25:15,358 INFO L226 Difference]: Without dead ends: 4395 [2024-11-09 05:25:15,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:25:15,359 INFO L432 NwaCegarLoop]: 2474 mSDtfsCounter, 1118 mSDsluCounter, 4163 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 6637 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:25:15,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 6637 Invalid, 641 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 639 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2024-11-09 05:25:15,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4395 states. [2024-11-09 05:25:15,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4395 to 2298. [2024-11-09 05:25:16,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2298 states, 1289 states have (on average 1.8463925523661753) internal successors, (2380), 2291 states have internal predecessors, (2380), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-09 05:25:16,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 4388 transitions. [2024-11-09 05:25:16,013 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 4388 transitions. Word has length 13 [2024-11-09 05:25:16,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:25:16,014 INFO L471 AbstractCegarLoop]: Abstraction has 2298 states and 4388 transitions. [2024-11-09 05:25:16,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:25:16,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 4388 transitions. [2024-11-09 05:25:16,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 05:25:16,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:25:16,019 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:25:16,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 05:25:16,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:16,221 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:25:16,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:25:16,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1232369399, now seen corresponding path program 1 times [2024-11-09 05:25:16,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:25:16,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515827184] [2024-11-09 05:25:16,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:16,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:16,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:25:16,234 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:25:16,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 05:25:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:17,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:25:17,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:17,070 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 05:25:17,071 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:25:17,071 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:25:17,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515827184] [2024-11-09 05:25:17,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515827184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:25:17,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:25:17,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:25:17,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970566355] [2024-11-09 05:25:17,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:25:17,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:25:17,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:25:17,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:25:17,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:25:17,075 INFO L87 Difference]: Start difference. First operand 2298 states and 4388 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:25:17,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:25:17,353 INFO L93 Difference]: Finished difference Result 2302 states and 4374 transitions. [2024-11-09 05:25:17,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:25:17,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-09 05:25:17,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:25:17,368 INFO L225 Difference]: With dead ends: 2302 [2024-11-09 05:25:17,368 INFO L226 Difference]: Without dead ends: 2302 [2024-11-09 05:25:17,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:25:17,370 INFO L432 NwaCegarLoop]: 2237 mSDtfsCounter, 30 mSDsluCounter, 4455 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 6692 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:25:17,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 6692 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:25:17,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2024-11-09 05:25:17,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2302. [2024-11-09 05:25:17,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 1293 states have (on average 1.8298530549110597) internal successors, (2366), 2295 states have internal predecessors, (2366), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-09 05:25:17,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 4374 transitions. [2024-11-09 05:25:17,776 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 4374 transitions. Word has length 84 [2024-11-09 05:25:17,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:25:17,777 INFO L471 AbstractCegarLoop]: Abstraction has 2302 states and 4374 transitions. [2024-11-09 05:25:17,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:25:17,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 4374 transitions. [2024-11-09 05:25:17,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 05:25:17,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:25:17,780 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:25:17,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-09 05:25:17,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:17,986 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:25:17,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:25:17,987 INFO L85 PathProgramCache]: Analyzing trace with hash -450423275, now seen corresponding path program 1 times [2024-11-09 05:25:17,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:25:17,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244759930] [2024-11-09 05:25:17,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:17,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:17,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:25:17,993 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:25:17,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 05:25:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:18,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:25:18,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:18,681 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:25:18,681 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:25:18,681 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:25:18,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244759930] [2024-11-09 05:25:18,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244759930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:25:18,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:25:18,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:25:18,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521499761] [2024-11-09 05:25:18,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:25:18,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:25:18,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:25:18,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:25:18,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:25:18,685 INFO L87 Difference]: Start difference. First operand 2302 states and 4374 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:25:18,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:25:18,792 INFO L93 Difference]: Finished difference Result 2305 states and 4378 transitions. [2024-11-09 05:25:18,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:25:18,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 84 [2024-11-09 05:25:18,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:25:18,809 INFO L225 Difference]: With dead ends: 2305 [2024-11-09 05:25:18,810 INFO L226 Difference]: Without dead ends: 2305 [2024-11-09 05:25:18,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:25:18,811 INFO L432 NwaCegarLoop]: 2253 mSDtfsCounter, 0 mSDsluCounter, 4502 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6755 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:25:18,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6755 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:25:18,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2024-11-09 05:25:19,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 2305. [2024-11-09 05:25:19,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2305 states, 1295 states have (on average 1.8293436293436294) internal successors, (2369), 2298 states have internal predecessors, (2369), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 3 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2024-11-09 05:25:19,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 4378 transitions. [2024-11-09 05:25:19,271 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 4378 transitions. Word has length 84 [2024-11-09 05:25:19,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:25:19,272 INFO L471 AbstractCegarLoop]: Abstraction has 2305 states and 4378 transitions. [2024-11-09 05:25:19,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:25:19,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 4378 transitions. [2024-11-09 05:25:19,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 05:25:19,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:25:19,275 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:25:19,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-09 05:25:19,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:19,476 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:25:19,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:25:19,477 INFO L85 PathProgramCache]: Analyzing trace with hash 995451731, now seen corresponding path program 1 times [2024-11-09 05:25:19,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:25:19,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730478795] [2024-11-09 05:25:19,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:19,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:19,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:25:19,482 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:25:19,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 05:25:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:20,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:25:20,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:20,340 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:25:20,342 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:25:20,538 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:25:20,538 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:25:20,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730478795] [2024-11-09 05:25:20,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730478795] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:25:20,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [338416838] [2024-11-09 05:25:20,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:20,540 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:25:20,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:25:20,544 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:25:20,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-09 05:25:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:21,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:25:21,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:21,855 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 05:25:21,855 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:25:21,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [338416838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:25:21,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:25:21,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-09 05:25:21,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545818930] [2024-11-09 05:25:21,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:25:21,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:25:21,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:25:21,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:25:21,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:25:21,863 INFO L87 Difference]: Start difference. First operand 2305 states and 4378 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:25:24,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:25:26,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:25:30,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:25:30,583 INFO L93 Difference]: Finished difference Result 1328 states and 2405 transitions. [2024-11-09 05:25:30,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:25:30,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-11-09 05:25:30,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:25:30,593 INFO L225 Difference]: With dead ends: 1328 [2024-11-09 05:25:30,594 INFO L226 Difference]: Without dead ends: 1328 [2024-11-09 05:25:30,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:25:30,595 INFO L432 NwaCegarLoop]: 2251 mSDtfsCounter, 2430 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1006 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2430 SdHoareTripleChecker+Valid, 3417 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1006 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:25:30,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2430 Valid, 3417 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1006 Valid, 93 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2024-11-09 05:25:30,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2024-11-09 05:25:30,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1258. [2024-11-09 05:25:30,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 748 states have (on average 1.7433155080213905) internal successors, (1304), 1251 states have internal predecessors, (1304), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2024-11-09 05:25:30,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 2313 transitions. [2024-11-09 05:25:30,848 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 2313 transitions. Word has length 86 [2024-11-09 05:25:30,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:25:30,848 INFO L471 AbstractCegarLoop]: Abstraction has 1258 states and 2313 transitions. [2024-11-09 05:25:30,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:25:30,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 2313 transitions. [2024-11-09 05:25:30,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 05:25:30,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:25:30,854 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:25:30,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-09 05:25:31,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-09 05:25:31,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:25:31,256 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:25:31,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:25:31,257 INFO L85 PathProgramCache]: Analyzing trace with hash -901600202, now seen corresponding path program 1 times [2024-11-09 05:25:31,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:25:31,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793510648] [2024-11-09 05:25:31,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:31,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:31,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:25:31,262 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:25:31,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 05:25:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:31,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:25:31,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:25:31,916 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:25:32,055 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 05:25:32,055 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:25:32,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793510648] [2024-11-09 05:25:32,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793510648] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:25:32,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1736837127] [2024-11-09 05:25:32,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:32,056 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:25:32,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:25:32,059 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:25:32,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-09 05:25:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:33,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:25:33,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:33,031 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:25:33,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:25:33,097 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 05:25:33,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1736837127] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:25:33,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182506059] [2024-11-09 05:25:33,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:33,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:25:33,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:25:33,103 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:25:33,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 05:25:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:33,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:25:33,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:33,789 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:25:33,789 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:25:33,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182506059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:25:33,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-09 05:25:33,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5, 5] total 10 [2024-11-09 05:25:33,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161114863] [2024-11-09 05:25:33,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:25:33,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:25:33,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:25:33,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:25:33,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:25:33,792 INFO L87 Difference]: Start difference. First operand 1258 states and 2313 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:25:36,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:25:38,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:25:42,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:25:44,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:25:44,663 INFO L93 Difference]: Finished difference Result 1260 states and 2314 transitions. [2024-11-09 05:25:44,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:25:44,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 96 [2024-11-09 05:25:44,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:25:44,672 INFO L225 Difference]: With dead ends: 1260 [2024-11-09 05:25:44,672 INFO L226 Difference]: Without dead ends: 1260 [2024-11-09 05:25:44,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 467 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:25:44,673 INFO L432 NwaCegarLoop]: 2222 mSDtfsCounter, 1221 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 4455 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:25:44,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1724 Valid, 4455 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 581 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2024-11-09 05:25:44,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2024-11-09 05:25:44,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1258. [2024-11-09 05:25:44,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 748 states have (on average 1.7419786096256684) internal successors, (1303), 1251 states have internal predecessors, (1303), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2024-11-09 05:25:44,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 2312 transitions. [2024-11-09 05:25:44,817 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 2312 transitions. Word has length 96 [2024-11-09 05:25:44,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:25:44,818 INFO L471 AbstractCegarLoop]: Abstraction has 1258 states and 2312 transitions. [2024-11-09 05:25:44,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:25:44,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 2312 transitions. [2024-11-09 05:25:44,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 05:25:44,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:25:44,820 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:25:44,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-09 05:25:45,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 05:25:45,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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)] Forceful destruction successful, exit code 0 [2024-11-09 05:25:45,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:45,421 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:25:45,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:25:45,421 INFO L85 PathProgramCache]: Analyzing trace with hash -899753160, now seen corresponding path program 1 times [2024-11-09 05:25:45,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:25:45,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135629067] [2024-11-09 05:25:45,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:45,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:45,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:25:45,423 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:25:45,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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 05:25:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:46,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:25:46,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:46,128 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:25:46,128 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:25:46,262 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 05:25:46,262 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:25:46,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135629067] [2024-11-09 05:25:46,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2135629067] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:25:46,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1351631067] [2024-11-09 05:25:46,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:46,263 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:25:46,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:25:46,267 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:25:46,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-09 05:25:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:47,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:25:47,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:47,288 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:25:47,288 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:25:47,362 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 05:25:47,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1351631067] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:25:47,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336806174] [2024-11-09 05:25:47,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:47,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:25:47,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:25:47,365 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:25:47,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 05:25:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:47,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:25:47,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:47,948 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 05:25:47,948 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:25:48,088 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 05:25:48,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336806174] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:25:48,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:25:48,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2024-11-09 05:25:48,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533835124] [2024-11-09 05:25:48,090 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:25:48,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:25:48,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:25:48,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:25:48,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:25:48,092 INFO L87 Difference]: Start difference. First operand 1258 states and 2312 transitions. Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:25:48,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:25:48,624 INFO L93 Difference]: Finished difference Result 1273 states and 2334 transitions. [2024-11-09 05:25:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:25:48,625 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 96 [2024-11-09 05:25:48,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:25:48,632 INFO L225 Difference]: With dead ends: 1273 [2024-11-09 05:25:48,633 INFO L226 Difference]: Without dead ends: 1273 [2024-11-09 05:25:48,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:25:48,634 INFO L432 NwaCegarLoop]: 2249 mSDtfsCounter, 13 mSDsluCounter, 11226 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 13475 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:25:48,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 13475 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:25:48,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2024-11-09 05:25:48,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 1269. [2024-11-09 05:25:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 758 states have (on average 1.7427440633245384) internal successors, (1321), 1261 states have internal predecessors, (1321), 505 states have call successors, (505), 4 states have call predecessors, (505), 4 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2024-11-09 05:25:48,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 2330 transitions. [2024-11-09 05:25:48,824 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 2330 transitions. Word has length 96 [2024-11-09 05:25:48,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:25:48,824 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 2330 transitions. [2024-11-09 05:25:48,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:25:48,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 2330 transitions. [2024-11-09 05:25:48,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 05:25:48,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:25:48,826 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:25:48,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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 05:25:49,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-09 05:25:49,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 05:25:49,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:25:49,427 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:25:49,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:25:49,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1981330298, now seen corresponding path program 2 times [2024-11-09 05:25:49,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:25:49,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697690423] [2024-11-09 05:25:49,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:25:49,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:49,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:25:49,430 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:25:49,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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 05:25:49,890 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 05:25:49,890 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:25:49,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:25:49,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:49,911 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:25:49,912 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:25:49,914 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 33 treesize of output 31 [2024-11-09 05:25:49,976 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:25:49,977 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 62 treesize of output 22 [2024-11-09 05:25:50,006 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-09 05:25:50,006 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:25:50,006 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:25:50,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697690423] [2024-11-09 05:25:50,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697690423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:25:50,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:25:50,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:25:50,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450022744] [2024-11-09 05:25:50,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:25:50,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:25:50,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:25:50,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:25:50,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:25:50,009 INFO L87 Difference]: Start difference. First operand 1269 states and 2330 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:25:52,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:25:57,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:25:57,645 INFO L93 Difference]: Finished difference Result 2335 states and 4417 transitions. [2024-11-09 05:25:57,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:25:57,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 102 [2024-11-09 05:25:57,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:25:57,667 INFO L225 Difference]: With dead ends: 2335 [2024-11-09 05:25:57,667 INFO L226 Difference]: Without dead ends: 2335 [2024-11-09 05:25:57,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:25:57,668 INFO L432 NwaCegarLoop]: 2277 mSDtfsCounter, 1088 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1588 SdHoareTripleChecker+Valid, 6235 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:25:57,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1588 Valid, 6235 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 617 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2024-11-09 05:25:57,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2335 states. [2024-11-09 05:25:57,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2335 to 1271. [2024-11-09 05:25:58,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 760 states have (on average 1.7407894736842104) internal successors, (1323), 1263 states have internal predecessors, (1323), 505 states have call successors, (505), 4 states have call predecessors, (505), 4 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2024-11-09 05:25:58,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 2332 transitions. [2024-11-09 05:25:58,006 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 2332 transitions. Word has length 102 [2024-11-09 05:25:58,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:25:58,006 INFO L471 AbstractCegarLoop]: Abstraction has 1271 states and 2332 transitions. [2024-11-09 05:25:58,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:25:58,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 2332 transitions. [2024-11-09 05:25:58,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 05:25:58,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:25:58,009 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:25:58,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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)] Ended with exit code 0 [2024-11-09 05:25:58,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:58,210 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:25:58,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:25:58,210 INFO L85 PathProgramCache]: Analyzing trace with hash -243188594, now seen corresponding path program 1 times [2024-11-09 05:25:58,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:25:58,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158006196] [2024-11-09 05:25:58,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:58,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:25:58,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:25:58,213 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:25:58,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-09 05:25:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:59,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:25:59,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:25:59,169 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:25:59,633 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:25:59,633 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:25:59,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158006196] [2024-11-09 05:25:59,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1158006196] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:25:59,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1084555043] [2024-11-09 05:25:59,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:59,634 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:25:59,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:25:59,637 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:25:59,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-09 05:26:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:26:00,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:26:00,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:26:00,930 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-09 05:26:00,930 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:26:00,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1084555043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:26:00,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:26:00,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 16 [2024-11-09 05:26:00,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606568409] [2024-11-09 05:26:00,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:26:00,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:26:00,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:26:00,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:26:00,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:26:00,933 INFO L87 Difference]: Start difference. First operand 1271 states and 2332 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:26:01,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:26:01,148 INFO L93 Difference]: Finished difference Result 1280 states and 2335 transitions. [2024-11-09 05:26:01,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:26:01,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 135 [2024-11-09 05:26:01,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:26:01,157 INFO L225 Difference]: With dead ends: 1280 [2024-11-09 05:26:01,157 INFO L226 Difference]: Without dead ends: 1280 [2024-11-09 05:26:01,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:26:01,158 INFO L432 NwaCegarLoop]: 2222 mSDtfsCounter, 22 mSDsluCounter, 4421 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 6643 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:26:01,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 6643 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:26:01,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2024-11-09 05:26:01,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1279. [2024-11-09 05:26:01,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 768 states have (on average 1.7252604166666667) internal successors, (1325), 1271 states have internal predecessors, (1325), 505 states have call successors, (505), 4 states have call predecessors, (505), 4 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2024-11-09 05:26:01,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 2334 transitions. [2024-11-09 05:26:01,326 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 2334 transitions. Word has length 135 [2024-11-09 05:26:01,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:26:01,327 INFO L471 AbstractCegarLoop]: Abstraction has 1279 states and 2334 transitions. [2024-11-09 05:26:01,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:26:01,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 2334 transitions. [2024-11-09 05:26:01,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 05:26:01,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:26:01,329 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:26:01,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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 05:26:01,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-09 05:26:01,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:26:01,730 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:26:01,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:26:01,731 INFO L85 PathProgramCache]: Analyzing trace with hash -265820848, now seen corresponding path program 1 times [2024-11-09 05:26:01,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:26:01,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340068583] [2024-11-09 05:26:01,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:26:01,732 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:26:01,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:26:01,734 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:26:01,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-09 05:26:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:26:02,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:26:02,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:26:02,782 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:26:02,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:26:03,217 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:26:03,217 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:26:03,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340068583] [2024-11-09 05:26:03,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340068583] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:26:03,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [480639061] [2024-11-09 05:26:03,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:26:03,218 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:26:03,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:26:03,221 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:26:03,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-09 05:26:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:26:04,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:26:04,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:26:04,543 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-09 05:26:04,543 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:26:04,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [480639061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:26:04,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:26:04,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 17 [2024-11-09 05:26:04,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139883216] [2024-11-09 05:26:04,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:26:04,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:26:04,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:26:04,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:26:04,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:26:04,550 INFO L87 Difference]: Start difference. First operand 1279 states and 2334 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:26:04,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:26:04,789 INFO L93 Difference]: Finished difference Result 1267 states and 2315 transitions. [2024-11-09 05:26:04,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:26:04,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 135 [2024-11-09 05:26:04,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:26:04,802 INFO L225 Difference]: With dead ends: 1267 [2024-11-09 05:26:04,805 INFO L226 Difference]: Without dead ends: 1267 [2024-11-09 05:26:04,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:26:04,806 INFO L432 NwaCegarLoop]: 2217 mSDtfsCounter, 12 mSDsluCounter, 6631 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8848 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:26:04,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 8848 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:26:04,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2024-11-09 05:26:05,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1267. [2024-11-09 05:26:05,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 756 states have (on average 1.7275132275132274) internal successors, (1306), 1259 states have internal predecessors, (1306), 505 states have call successors, (505), 4 states have call predecessors, (505), 4 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2024-11-09 05:26:05,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 2315 transitions. [2024-11-09 05:26:05,040 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 2315 transitions. Word has length 135 [2024-11-09 05:26:05,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:26:05,040 INFO L471 AbstractCegarLoop]: Abstraction has 1267 states and 2315 transitions. [2024-11-09 05:26:05,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:26:05,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 2315 transitions. [2024-11-09 05:26:05,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 05:26:05,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:26:05,043 INFO L215 NwaCegarLoop]: trace histogram [8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:26:05,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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)] Forceful destruction successful, exit code 0 [2024-11-09 05:26:05,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-11-09 05:26:05,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:26:05,444 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:26:05,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:26:05,445 INFO L85 PathProgramCache]: Analyzing trace with hash -487464124, now seen corresponding path program 1 times [2024-11-09 05:26:05,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:26:05,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543442370] [2024-11-09 05:26:05,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:26:05,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:26:05,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:26:05,447 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:26:05,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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)] Waiting until timeout for monitored process [2024-11-09 05:26:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:26:06,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:26:06,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:26:06,461 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:26:06,462 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:26:06,918 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:26:06,919 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:26:06,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543442370] [2024-11-09 05:26:06,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543442370] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:26:06,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1277657483] [2024-11-09 05:26:06,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:26:06,920 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:26:06,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:26:06,923 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:26:06,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-09 05:26:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:26:08,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:26:08,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:26:08,437 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:26:08,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:26:08,583 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:26:08,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1277657483] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:26:08,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069026325] [2024-11-09 05:26:08,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:26:08,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:26:08,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:26:08,587 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:26:08,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 05:26:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:26:09,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:26:09,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:26:09,553 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:26:09,553 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:26:10,098 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:26:10,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069026325] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:26:10,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:26:10,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 22 [2024-11-09 05:26:10,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323893503] [2024-11-09 05:26:10,100 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:26:10,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 05:26:10,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:26:10,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 05:26:10,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2024-11-09 05:26:10,103 INFO L87 Difference]: Start difference. First operand 1267 states and 2315 transitions. Second operand has 22 states, 22 states have (on average 6.818181818181818) internal successors, (150), 22 states have internal predecessors, (150), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:26:11,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:26:11,918 INFO L93 Difference]: Finished difference Result 1287 states and 2344 transitions. [2024-11-09 05:26:11,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 05:26:11,919 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.818181818181818) internal successors, (150), 22 states have internal predecessors, (150), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 135 [2024-11-09 05:26:11,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:26:11,926 INFO L225 Difference]: With dead ends: 1287 [2024-11-09 05:26:11,926 INFO L226 Difference]: Without dead ends: 1281 [2024-11-09 05:26:11,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 825 GetRequests, 784 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=505, Invalid=1301, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 05:26:11,928 INFO L432 NwaCegarLoop]: 2233 mSDtfsCounter, 26 mSDsluCounter, 22292 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 24525 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:26:11,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 24525 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:26:11,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2024-11-09 05:26:12,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1279. [2024-11-09 05:26:12,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 768 states have (on average 1.72265625) internal successors, (1323), 1271 states have internal predecessors, (1323), 505 states have call successors, (505), 4 states have call predecessors, (505), 4 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2024-11-09 05:26:12,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 2332 transitions. [2024-11-09 05:26:12,121 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 2332 transitions. Word has length 135 [2024-11-09 05:26:12,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:26:12,122 INFO L471 AbstractCegarLoop]: Abstraction has 1279 states and 2332 transitions. [2024-11-09 05:26:12,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.818181818181818) internal successors, (150), 22 states have internal predecessors, (150), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:26:12,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 2332 transitions. [2024-11-09 05:26:12,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-09 05:26:12,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:26:12,125 INFO L215 NwaCegarLoop]: trace histogram [20, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:26:12,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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)] Forceful destruction successful, exit code 0 [2024-11-09 05:26:12,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-09 05:26:12,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-11-09 05:26:12,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:26:12,726 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:26:12,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:26:12,727 INFO L85 PathProgramCache]: Analyzing trace with hash 2131137348, now seen corresponding path program 2 times [2024-11-09 05:26:12,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:26:12,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298841811] [2024-11-09 05:26:12,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:26:12,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:26:12,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:26:12,729 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:26:12,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-09 05:26:13,741 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:26:13,741 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:26:13,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:26:13,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:26:14,169 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 126 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-09 05:26:14,170 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:26:15,198 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 178 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 05:26:15,199 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:26:15,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298841811] [2024-11-09 05:26:15,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298841811] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:26:15,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2049270147] [2024-11-09 05:26:15,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:26:15,200 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:26:15,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:26:15,201 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:26:15,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-11-09 05:26:17,172 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:26:17,172 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:26:17,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:26:17,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:26:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 126 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-09 05:26:17,265 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:26:17,530 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 178 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 05:26:17,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2049270147] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:26:17,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032629689] [2024-11-09 05:26:17,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:26:17,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:26:17,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:26:17,532 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:26:17,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 05:26:18,465 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:26:18,465 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:26:18,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:26:18,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:26:18,694 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 05:26:18,694 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:26:20,271 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 05:26:20,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032629689] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:26:20,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:26:20,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 14, 14] total 40 [2024-11-09 05:26:20,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999698235] [2024-11-09 05:26:20,272 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:26:20,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-09 05:26:20,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:26:20,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-09 05:26:20,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=1147, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 05:26:20,274 INFO L87 Difference]: Start difference. First operand 1279 states and 2332 transitions. Second operand has 40 states, 40 states have (on average 4.2) internal successors, (168), 40 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:26:26,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:26:26,223 INFO L93 Difference]: Finished difference Result 1311 states and 2385 transitions. [2024-11-09 05:26:26,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-09 05:26:26,224 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 4.2) internal successors, (168), 40 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 147 [2024-11-09 05:26:26,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:26:26,229 INFO L225 Difference]: With dead ends: 1311 [2024-11-09 05:26:26,229 INFO L226 Difference]: Without dead ends: 1305 [2024-11-09 05:26:26,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 838 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1873, Invalid=5267, Unknown=0, NotChecked=0, Total=7140 [2024-11-09 05:26:26,232 INFO L432 NwaCegarLoop]: 2233 mSDtfsCounter, 50 mSDsluCounter, 49022 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 51255 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:26:26,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 51255 Invalid, 717 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 05:26:26,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2024-11-09 05:26:26,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1303. [2024-11-09 05:26:26,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 792 states have (on average 1.7146464646464648) internal successors, (1358), 1295 states have internal predecessors, (1358), 505 states have call successors, (505), 4 states have call predecessors, (505), 4 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2024-11-09 05:26:26,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 2367 transitions. [2024-11-09 05:26:26,349 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 2367 transitions. Word has length 147 [2024-11-09 05:26:26,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:26:26,349 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 2367 transitions. [2024-11-09 05:26:26,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 4.2) internal successors, (168), 40 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:26:26,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 2367 transitions. [2024-11-09 05:26:26,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-09 05:26:26,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:26:26,352 INFO L215 NwaCegarLoop]: trace histogram [44, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:26:26,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-09 05:26:26,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2024-11-09 05:26:26,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-09 05:26:26,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:26:26,953 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:26:26,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:26:26,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1057071940, now seen corresponding path program 3 times [2024-11-09 05:26:26,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:26:26,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275913226] [2024-11-09 05:26:26,955 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:26:26,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:26:26,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:26:26,956 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:26:26,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/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 (26)] Waiting until timeout for monitored process [2024-11-09 05:26:34,355 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-11-09 05:26:34,356 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:26:34,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 05:26:34,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:26:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 533 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-09 05:26:35,381 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:26:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 533 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-09 05:26:39,508 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:26:39,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275913226] [2024-11-09 05:26:39,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1275913226] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:26:39,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [956520881] [2024-11-09 05:26:39,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:26:39,509 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:26:39,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:26:39,513 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:26:39,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74721988-9965-4258-97e6-279c2cd44d74/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process