./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/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_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/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_015be84e-361c-449d-ac69-6f7624982b34/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 d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:11:16,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:11:16,828 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-09 05:11:16,833 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:11:16,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:11:16,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:11:16,868 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:11:16,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:11:16,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:11:16,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:11:16,869 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:11:16,870 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:11:16,870 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:11:16,871 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:11:16,871 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:11:16,871 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:11:16,872 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:11:16,872 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:11:16,873 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:11:16,873 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:11:16,874 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:11:16,874 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:11:16,875 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:11:16,875 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:11:16,876 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:11:16,876 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:11:16,877 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:11:16,877 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:11:16,877 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:11:16,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:11:16,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:11:16,878 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:11:16,879 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:11:16,879 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:11:16,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:11:16,880 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:11:16,880 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:11:16,880 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:11:16,881 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:11:16,881 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:11:16,881 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:11:16,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:11:16,882 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:11:16,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:11:16,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:11:16,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:11:16,884 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:11:16,884 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:11:16,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:11:16,885 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:11:16,885 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:11:16,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:11:16,885 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_015be84e-361c-449d-ac69-6f7624982b34/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d [2024-11-09 05:11:17,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:11:17,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:11:17,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:11:17,243 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:11:17,243 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:11:17,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i Unable to find full path for "g++" [2024-11-09 05:11:19,165 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:11:19,567 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:11:19,570 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2024-11-09 05:11:19,596 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/data/6a20a524c/b0d741ba9b784486a03ddccc529c30a1/FLAG2bd7335d2 [2024-11-09 05:11:19,744 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/data/6a20a524c/b0d741ba9b784486a03ddccc529c30a1 [2024-11-09 05:11:19,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:11:19,748 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:11:19,749 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:11:19,749 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:11:19,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:11:19,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:11:19" (1/1) ... [2024-11-09 05:11:19,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@691b4f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:19, skipping insertion in model container [2024-11-09 05:11:19,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:11:19" (1/1) ... [2024-11-09 05:11:19,842 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:11:20,371 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 05:11:20,427 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 05:11:20,432 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 05:11:20,438 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 05:11:20,448 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 05:11:20,507 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 05:11:20,511 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 05:11:20,514 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 05:11:20,514 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 05:11:20,519 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 05:11:20,521 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:11:20,526 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:11:20,527 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 05:11:20,532 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 05:11:20,537 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 05:11:20,539 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 05:11:20,544 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 05:11:20,545 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 05:11:20,550 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 05:11:20,556 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 05:11:20,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:11:20,589 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 05:11:20,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5a2dd000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:20, skipping insertion in model container [2024-11-09 05:11:20,590 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:11:20,591 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 05:11:20,593 INFO L158 Benchmark]: Toolchain (without parser) took 843.98ms. Allocated memory is still 161.5MB. Free memory was 125.0MB in the beginning and 114.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 05:11:20,595 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:11:20,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 841.74ms. Allocated memory is still 161.5MB. Free memory was 125.0MB in the beginning and 114.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 05:11:20,597 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 841.74ms. Allocated memory is still 161.5MB. Free memory was 125.0MB in the beginning and 114.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 747]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/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_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/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_015be84e-361c-449d-ac69-6f7624982b34/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 d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:11:22,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:11:22,956 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-09 05:11:22,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:11:22,962 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:11:23,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:11:23,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:11:23,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:11:23,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:11:23,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:11:23,008 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:11:23,008 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:11:23,009 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:11:23,009 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:11:23,011 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:11:23,012 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:11:23,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 05:11:23,013 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 05:11:23,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:11:23,017 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:11:23,017 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:11:23,018 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:11:23,020 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:11:23,020 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:11:23,021 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:11:23,021 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 05:11:23,021 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 05:11:23,022 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:11:23,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:11:23,022 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:11:23,023 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:11:23,023 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:11:23,023 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:11:23,023 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:11:23,024 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:11:23,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:11:23,025 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:11:23,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:11:23,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:11:23,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:11:23,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:11:23,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:11:23,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:11:23,028 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:11:23,029 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:11:23,029 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:11:23,029 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:11:23,029 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:11:23,029 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_015be84e-361c-449d-ac69-6f7624982b34/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d [2024-11-09 05:11:23,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:11:23,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:11:23,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:11:23,455 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:11:23,456 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:11:23,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i Unable to find full path for "g++" [2024-11-09 05:11:25,486 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:11:25,861 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:11:25,861 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2024-11-09 05:11:25,878 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/data/ad85cbcfe/113299ee3ce74d5a8ab165cbf2454baf/FLAG02a4fe224 [2024-11-09 05:11:25,897 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/data/ad85cbcfe/113299ee3ce74d5a8ab165cbf2454baf [2024-11-09 05:11:25,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:11:25,901 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:11:25,902 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:11:25,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:11:25,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:11:25,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:11:25" (1/1) ... [2024-11-09 05:11:25,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b60bf20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:25, skipping insertion in model container [2024-11-09 05:11:25,911 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:11:25" (1/1) ... [2024-11-09 05:11:25,995 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:11:26,563 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 05:11:26,623 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 05:11:26,631 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 05:11:26,640 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 05:11:26,648 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 05:11:26,710 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 05:11:26,711 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 05:11:26,715 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 05:11:26,715 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 05:11:26,739 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 05:11:26,743 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 05:11:26,745 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 05:11:26,754 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 05:11:26,765 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 05:11:26,766 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 05:11:26,768 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:11:26,770 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 05:11:26,771 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 05:11:26,772 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 05:11:26,776 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 05:11:26,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:11:26,808 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 05:11:26,824 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:11:26,882 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 05:11:26,905 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 05:11:26,911 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 05:11:26,913 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 05:11:26,923 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 05:11:26,950 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 05:11:26,951 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 05:11:26,953 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 05:11:26,953 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 05:11:26,955 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 05:11:26,956 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 05:11:26,957 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 05:11:26,958 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 05:11:26,961 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 05:11:26,962 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 05:11:26,964 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 05:11:26,965 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 05:11:26,965 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 05:11:26,966 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 05:11:26,969 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 05:11:26,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:11:26,976 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:11:27,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:11:27,123 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:11:27,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:27 WrapperNode [2024-11-09 05:11:27,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:11:27,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:11:27,125 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:11:27,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:11:27,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:27" (1/1) ... [2024-11-09 05:11:27,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:27" (1/1) ... [2024-11-09 05:11:27,258 INFO L138 Inliner]: procedures = 180, calls = 330, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1168 [2024-11-09 05:11:27,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:11:27,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:11:27,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:11:27,259 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:11:27,270 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:27" (1/1) ... [2024-11-09 05:11:27,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:27" (1/1) ... [2024-11-09 05:11:27,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:27" (1/1) ... [2024-11-09 05:11:27,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:27" (1/1) ... [2024-11-09 05:11:27,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:27" (1/1) ... [2024-11-09 05:11:27,336 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:27" (1/1) ... [2024-11-09 05:11:27,341 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:27" (1/1) ... [2024-11-09 05:11:27,346 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:27" (1/1) ... [2024-11-09 05:11:27,358 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:11:27,359 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:11:27,359 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:11:27,359 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:11:27,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:27" (1/1) ... [2024-11-09 05:11:27,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:11:27,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:27,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:11:27,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:11:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-09 05:11:27,417 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-09 05:11:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 05:11:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 05:11:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:11:27,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:11:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:11:27,418 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:11:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:11:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:11:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:11:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:11:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:11:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:11:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 05:11:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:11:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:11:27,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:11:27,724 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:11:27,726 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:11:34,843 INFO L? ?]: Removed 152 outVars from TransFormulas that were not future-live. [2024-11-09 05:11:34,843 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:11:34,870 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:11:34,871 INFO L316 CfgBuilder]: Removed 66 assume(true) statements. [2024-11-09 05:11:34,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:11:34 BoogieIcfgContainer [2024-11-09 05:11:34,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:11:34,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:11:34,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:11:34,877 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:11:34,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:11:25" (1/3) ... [2024-11-09 05:11:34,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c36d196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:11:34, skipping insertion in model container [2024-11-09 05:11:34,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:27" (2/3) ... [2024-11-09 05:11:34,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c36d196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:11:34, skipping insertion in model container [2024-11-09 05:11:34,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:11:34" (3/3) ... [2024-11-09 05:11:34,880 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-2.i [2024-11-09 05:11:34,895 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:11:34,895 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 05:11:34,955 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:11:34,963 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;@65f6dd43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:11:34,963 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 05:11:34,971 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 232 states have (on average 1.6508620689655173) internal successors, (383), 241 states have internal predecessors, (383), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:11:34,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 05:11:34,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:34,982 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:34,984 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:11:34,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:34,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1491377087, now seen corresponding path program 1 times [2024-11-09 05:11:35,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:11:35,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989366413] [2024-11-09 05:11:35,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:35,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:35,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:11:35,008 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:11:35,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:11:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:35,254 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 05:11:35,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:35,270 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 05:11:35,270 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:11:35,271 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:11:35,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989366413] [2024-11-09 05:11:35,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989366413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:11:35,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:11:35,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:11:35,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43969122] [2024-11-09 05:11:35,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:11:35,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:11:35,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:11:35,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:11:35,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:11:35,308 INFO L87 Difference]: Start difference. First operand has 248 states, 232 states have (on average 1.6508620689655173) internal successors, (383), 241 states have internal predecessors, (383), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 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 05:11:35,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:35,343 INFO L93 Difference]: Finished difference Result 246 states and 328 transitions. [2024-11-09 05:11:35,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:11:35,345 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 05:11:35,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:35,356 INFO L225 Difference]: With dead ends: 246 [2024-11-09 05:11:35,356 INFO L226 Difference]: Without dead ends: 244 [2024-11-09 05:11:35,358 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 05:11:35,374 INFO L432 NwaCegarLoop]: 328 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, 328 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 05:11:35,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:11:35,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-09 05:11:35,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2024-11-09 05:11:35,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 230 states have (on average 1.3391304347826087) internal successors, (308), 237 states have internal predecessors, (308), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:11:35,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 326 transitions. [2024-11-09 05:11:35,428 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 326 transitions. Word has length 11 [2024-11-09 05:11:35,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:35,428 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 326 transitions. [2024-11-09 05:11:35,429 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 05:11:35,429 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 326 transitions. [2024-11-09 05:11:35,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 05:11:35,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:35,431 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:35,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:11:35,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:35,632 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:11:35,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:35,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1901622230, now seen corresponding path program 1 times [2024-11-09 05:11:35,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:11:35,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973304282] [2024-11-09 05:11:35,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:35,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:35,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:11:35,637 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:11:35,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:11:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:35,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:11:35,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:36,005 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 05:11:36,005 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:11:36,005 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:11:36,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973304282] [2024-11-09 05:11:36,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973304282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:11:36,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:11:36,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:11:36,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145166526] [2024-11-09 05:11:36,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:11:36,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:11:36,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:11:36,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:11:36,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:11:36,010 INFO L87 Difference]: Start difference. First operand 244 states and 326 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:11:38,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:11:40,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:40,753 INFO L93 Difference]: Finished difference Result 393 states and 522 transitions. [2024-11-09 05:11:40,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:11:40,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-09 05:11:40,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:40,758 INFO L225 Difference]: With dead ends: 393 [2024-11-09 05:11:40,758 INFO L226 Difference]: Without dead ends: 393 [2024-11-09 05:11:40,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 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 05:11:40,760 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 187 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:40,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 918 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 118 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-11-09 05:11:40,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-09 05:11:40,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 360. [2024-11-09 05:11:40,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 346 states have (on average 1.3323699421965318) internal successors, (461), 353 states have internal predecessors, (461), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:11:40,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 479 transitions. [2024-11-09 05:11:40,784 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 479 transitions. Word has length 17 [2024-11-09 05:11:40,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:40,785 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 479 transitions. [2024-11-09 05:11:40,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:11:40,785 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 479 transitions. [2024-11-09 05:11:40,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 05:11:40,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:40,786 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:40,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:11:40,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:40,987 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:11:40,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:40,988 INFO L85 PathProgramCache]: Analyzing trace with hash 920938530, now seen corresponding path program 1 times [2024-11-09 05:11:40,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:11:40,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736437534] [2024-11-09 05:11:40,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:40,989 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 05:11:40,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:11:40,992 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:11:40,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:11:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:41,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:11:41,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:41,280 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:11:41,281 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:11:41,282 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:11:41,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-09 05:11:41,391 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:11:41,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-09 05:11:41,416 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 05:11:41,416 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:11:41,416 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:11:41,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736437534] [2024-11-09 05:11:41,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736437534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:11:41,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:11:41,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:11:41,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822231327] [2024-11-09 05:11:41,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:11:41,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:11:41,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:11:41,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:11:41,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:11:41,421 INFO L87 Difference]: Start difference. First operand 360 states and 479 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 05:11:44,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:11:47,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:47,256 INFO L93 Difference]: Finished difference Result 488 states and 660 transitions. [2024-11-09 05:11:47,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:11:47,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2024-11-09 05:11:47,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:47,260 INFO L225 Difference]: With dead ends: 488 [2024-11-09 05:11:47,260 INFO L226 Difference]: Without dead ends: 488 [2024-11-09 05:11:47,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:11:47,263 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 199 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:47,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 834 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2024-11-09 05:11:47,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-09 05:11:47,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 359. [2024-11-09 05:11:47,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 345 states have (on average 1.3304347826086957) internal successors, (459), 352 states have internal predecessors, (459), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:11:47,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 477 transitions. [2024-11-09 05:11:47,284 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 477 transitions. Word has length 15 [2024-11-09 05:11:47,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:47,285 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 477 transitions. [2024-11-09 05:11:47,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 05:11:47,285 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 477 transitions. [2024-11-09 05:11:47,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 05:11:47,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:47,292 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:47,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 05:11:47,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:47,495 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:11:47,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:47,496 INFO L85 PathProgramCache]: Analyzing trace with hash 13367680, now seen corresponding path program 1 times [2024-11-09 05:11:47,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:11:47,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092683111] [2024-11-09 05:11:47,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:47,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:47,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:11:47,501 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:11:47,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:11:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:48,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:11:48,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:48,150 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 05:11:48,153 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:11:48,154 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:11:48,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092683111] [2024-11-09 05:11:48,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092683111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:11:48,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:11:48,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:11:48,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228836428] [2024-11-09 05:11:48,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:11:48,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:11:48,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:11:48,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:11:48,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:11:48,161 INFO L87 Difference]: Start difference. First operand 359 states and 477 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:11:48,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:48,342 INFO L93 Difference]: Finished difference Result 363 states and 463 transitions. [2024-11-09 05:11:48,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:11:48,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 88 [2024-11-09 05:11:48,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:48,344 INFO L225 Difference]: With dead ends: 363 [2024-11-09 05:11:48,345 INFO L226 Difference]: Without dead ends: 363 [2024-11-09 05:11:48,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 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 05:11:48,346 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 30 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 863 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 05:11:48,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 863 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:11:48,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-09 05:11:48,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-11-09 05:11:48,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 349 states have (on average 1.2750716332378222) internal successors, (445), 356 states have internal predecessors, (445), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:11:48,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 463 transitions. [2024-11-09 05:11:48,360 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 463 transitions. Word has length 88 [2024-11-09 05:11:48,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:48,361 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 463 transitions. [2024-11-09 05:11:48,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:11:48,361 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 463 transitions. [2024-11-09 05:11:48,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 05:11:48,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:48,364 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:48,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:11:48,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:48,565 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:11:48,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:48,565 INFO L85 PathProgramCache]: Analyzing trace with hash 763502732, now seen corresponding path program 1 times [2024-11-09 05:11:48,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:11:48,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090478493] [2024-11-09 05:11:48,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:48,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:48,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:11:48,570 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:11:48,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:11:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:49,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:11:49,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:49,274 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 05:11:49,274 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:11:49,274 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:11:49,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090478493] [2024-11-09 05:11:49,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090478493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:11:49,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:11:49,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:11:49,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783774816] [2024-11-09 05:11:49,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:11:49,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:11:49,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:11:49,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:11:49,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:11:49,277 INFO L87 Difference]: Start difference. First operand 363 states and 463 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:11:49,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:49,332 INFO L93 Difference]: Finished difference Result 366 states and 467 transitions. [2024-11-09 05:11:49,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:11:49,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 88 [2024-11-09 05:11:49,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:49,336 INFO L225 Difference]: With dead ends: 366 [2024-11-09 05:11:49,336 INFO L226 Difference]: Without dead ends: 366 [2024-11-09 05:11:49,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 85 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 05:11:49,337 INFO L432 NwaCegarLoop]: 310 mSDtfsCounter, 0 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:49,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 926 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:11:49,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-09 05:11:49,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2024-11-09 05:11:49,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 351 states have (on average 1.2763532763532763) internal successors, (448), 359 states have internal predecessors, (448), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 05:11:49,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 467 transitions. [2024-11-09 05:11:49,351 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 467 transitions. Word has length 88 [2024-11-09 05:11:49,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:49,352 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 467 transitions. [2024-11-09 05:11:49,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:11:49,353 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 467 transitions. [2024-11-09 05:11:49,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 05:11:49,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:49,356 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] [2024-11-09 05:11:49,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-09 05:11:49,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:49,560 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:11:49,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:49,560 INFO L85 PathProgramCache]: Analyzing trace with hash 419222730, now seen corresponding path program 1 times [2024-11-09 05:11:49,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:11:49,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399707216] [2024-11-09 05:11:49,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:49,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:49,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:11:49,563 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:11:49,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:11:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:50,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:11:50,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:50,281 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 05:11:50,281 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:50,443 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 05:11:50,444 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:11:50,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399707216] [2024-11-09 05:11:50,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399707216] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:11:50,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1192397839] [2024-11-09 05:11:50,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:50,445 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:11:50,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:11:50,448 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:11:50,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-09 05:11:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:51,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:11:51,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:51,441 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 05:11:51,441 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:51,517 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 05:11:51,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1192397839] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:11:51,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088032371] [2024-11-09 05:11:51,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:51,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:11:51,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:51,523 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:11:51,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:11:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:52,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:11:52,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:52,086 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:11:52,086 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:11:52,087 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 05:11:52,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-09 05:11:52,181 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 05:11:52,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-09 05:11:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:11:52,227 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:11:52,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088032371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:11:52,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-09 05:11:52,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5, 5] total 10 [2024-11-09 05:11:52,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239224130] [2024-11-09 05:11:52,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:11:52,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:11:52,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:11:52,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:11:52,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:11:52,230 INFO L87 Difference]: Start difference. First operand 366 states and 467 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:11:55,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:11:58,220 WARN L539 Checker$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 05:11:58,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:58,498 INFO L93 Difference]: Finished difference Result 456 states and 589 transitions. [2024-11-09 05:11:58,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:11:58,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 90 [2024-11-09 05:11:58,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:58,501 INFO L225 Difference]: With dead ends: 456 [2024-11-09 05:11:58,501 INFO L226 Difference]: Without dead ends: 456 [2024-11-09 05:11:58,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 437 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 05:11:58,503 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 140 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:58,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 814 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2024-11-09 05:11:58,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-09 05:11:58,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 368. [2024-11-09 05:11:58,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 353 states have (on average 1.274787535410765) internal successors, (450), 361 states have internal predecessors, (450), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 05:11:58,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 469 transitions. [2024-11-09 05:11:58,514 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 469 transitions. Word has length 90 [2024-11-09 05:11:58,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:58,514 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 469 transitions. [2024-11-09 05:11:58,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:11:58,515 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 469 transitions. [2024-11-09 05:11:58,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 05:11:58,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:58,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:11:58,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:11:58,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 05:11:58,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-09 05:11:59,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:11:59,120 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:11:59,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:59,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1442910454, now seen corresponding path program 1 times [2024-11-09 05:11:59,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:11:59,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916788203] [2024-11-09 05:11:59,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:59,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:11:59,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:11:59,122 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:11:59,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-09 05:11:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:59,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:11:59,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:59,799 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 05:11:59,800 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:59,916 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 05:11:59,916 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:11:59,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916788203] [2024-11-09 05:11:59,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916788203] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:11:59,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [700153861] [2024-11-09 05:11:59,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:59,917 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:11:59,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:11:59,919 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:11:59,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-09 05:12:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:00,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:12:00,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:00,901 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:12:00,902 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:00,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [700153861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:00,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:12:00,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-09 05:12:00,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571459002] [2024-11-09 05:12:00,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:00,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:12:00,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:12:00,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:12:00,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:12:00,908 INFO L87 Difference]: Start difference. First operand 368 states and 469 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 05:12:01,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:01,115 INFO L93 Difference]: Finished difference Result 386 states and 475 transitions. [2024-11-09 05:12:01,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:12:01,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 121 [2024-11-09 05:12:01,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:01,118 INFO L225 Difference]: With dead ends: 386 [2024-11-09 05:12:01,119 INFO L226 Difference]: Without dead ends: 386 [2024-11-09 05:12:01,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 352 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 05:12:01,120 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 22 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 823 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 05:12:01,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 823 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:12:01,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-09 05:12:01,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 384. [2024-11-09 05:12:01,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 369 states have (on average 1.2303523035230353) internal successors, (454), 377 states have internal predecessors, (454), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 05:12:01,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 473 transitions. [2024-11-09 05:12:01,136 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 473 transitions. Word has length 121 [2024-11-09 05:12:01,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:01,139 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 473 transitions. [2024-11-09 05:12:01,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 05:12:01,139 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 473 transitions. [2024-11-09 05:12:01,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 05:12:01,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:01,142 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, 1, 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 05:12:01,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-09 05:12:01,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:01,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:12:01,543 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:12:01,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:01,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1224055736, now seen corresponding path program 1 times [2024-11-09 05:12:01,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:12:01,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920028469] [2024-11-09 05:12:01,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:01,544 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 05:12:01,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:12:01,545 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:12:01,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:12:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:02,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:02,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:02,247 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 05:12:02,248 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:02,392 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 05:12:02,392 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:12:02,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920028469] [2024-11-09 05:12:02,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920028469] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:02,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [113770429] [2024-11-09 05:12:02,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:02,393 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:12:02,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:12:02,396 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:12:02,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-09 05:12:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:03,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:12:03,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:03,803 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 05:12:03,804 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:03,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [113770429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:03,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:12:03,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-09 05:12:03,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638114802] [2024-11-09 05:12:03,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:03,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:12:03,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:12:03,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:12:03,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 05:12:03,807 INFO L87 Difference]: Start difference. First operand 384 states and 473 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 05:12:06,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:12:08,360 WARN L539 Checker$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 05:12:10,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:12:11,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:11,583 INFO L93 Difference]: Finished difference Result 583 states and 739 transitions. [2024-11-09 05:12:11,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:12:11,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 121 [2024-11-09 05:12:11,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:11,586 INFO L225 Difference]: With dead ends: 583 [2024-11-09 05:12:11,587 INFO L226 Difference]: Without dead ends: 583 [2024-11-09 05:12:11,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 353 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 05:12:11,588 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 582 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:11,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 675 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 142 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2024-11-09 05:12:11,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-09 05:12:11,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 499. [2024-11-09 05:12:11,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 479 states have (on average 1.2400835073068894) internal successors, (594), 492 states have internal predecessors, (594), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-09 05:12:11,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 623 transitions. [2024-11-09 05:12:11,607 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 623 transitions. Word has length 121 [2024-11-09 05:12:11,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:11,607 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 623 transitions. [2024-11-09 05:12:11,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 05:12:11,608 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 623 transitions. [2024-11-09 05:12:11,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 05:12:11,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:11,610 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:11,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-09 05:12:11,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:12:12,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:12:12,011 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:12:12,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:12,012 INFO L85 PathProgramCache]: Analyzing trace with hash 366147449, now seen corresponding path program 1 times [2024-11-09 05:12:12,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:12:12,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25260087] [2024-11-09 05:12:12,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:12,013 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 05:12:12,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:12:12,014 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:12:12,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-09 05:12:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:12,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:12,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:12,811 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 05:12:12,811 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:12,946 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 05:12:12,947 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:12:12,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25260087] [2024-11-09 05:12:12,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25260087] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:12,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1675642305] [2024-11-09 05:12:12,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:12,948 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:12:12,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:12:12,951 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:12:12,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-09 05:12:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:13,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:12:13,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:13,956 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:12:13,956 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:12:13,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1675642305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:12:13,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:12:13,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2024-11-09 05:12:13,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161287389] [2024-11-09 05:12:13,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:12:13,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:12:13,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:12:13,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:12:13,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:12:13,959 INFO L87 Difference]: Start difference. First operand 499 states and 623 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 05:12:14,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:14,094 INFO L93 Difference]: Finished difference Result 463 states and 566 transitions. [2024-11-09 05:12:14,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:12:14,095 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 129 [2024-11-09 05:12:14,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:14,097 INFO L225 Difference]: With dead ends: 463 [2024-11-09 05:12:14,097 INFO L226 Difference]: Without dead ends: 463 [2024-11-09 05:12:14,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:12:14,099 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 12 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:14,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1088 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:12:14,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-09 05:12:14,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2024-11-09 05:12:14,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 443 states have (on average 1.2121896162528216) internal successors, (537), 456 states have internal predecessors, (537), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-09 05:12:14,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 566 transitions. [2024-11-09 05:12:14,112 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 566 transitions. Word has length 129 [2024-11-09 05:12:14,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:14,113 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 566 transitions. [2024-11-09 05:12:14,113 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 05:12:14,113 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 566 transitions. [2024-11-09 05:12:14,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 05:12:14,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:14,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:12:14,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:14,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:14,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 05:12:14,516 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:12:14,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:14,517 INFO L85 PathProgramCache]: Analyzing trace with hash 144504173, now seen corresponding path program 1 times [2024-11-09 05:12:14,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:12:14,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922925012] [2024-11-09 05:12:14,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:14,518 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 05:12:14,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:12:14,519 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:12:14,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:12:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:15,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:15,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:15,265 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 05:12:15,265 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:15,418 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 05:12:15,418 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:12:15,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922925012] [2024-11-09 05:12:15,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922925012] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:15,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [655755401] [2024-11-09 05:12:15,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:15,419 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:12:15,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:12:15,422 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:12:15,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-09 05:12:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:16,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:16,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:16,656 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 05:12:16,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:16,739 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 05:12:16,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [655755401] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:16,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890263113] [2024-11-09 05:12:16,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:12:16,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:16,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:16,742 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:16,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 05:12:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:12:17,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:12:17,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:17,529 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:12:17,529 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:17,691 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:12:17,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890263113] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:17,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:12:17,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2024-11-09 05:12:17,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518599193] [2024-11-09 05:12:17,693 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:12:17,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:12:17,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:12:17,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:12:17,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:12:17,695 INFO L87 Difference]: Start difference. First operand 463 states and 566 transitions. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:12:18,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:18,224 INFO L93 Difference]: Finished difference Result 478 states and 588 transitions. [2024-11-09 05:12:18,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 05:12:18,229 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 129 [2024-11-09 05:12:18,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:18,231 INFO L225 Difference]: With dead ends: 478 [2024-11-09 05:12:18,232 INFO L226 Difference]: Without dead ends: 478 [2024-11-09 05:12:18,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 759 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:12:18,233 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 13 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:18,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1735 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:12:18,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-09 05:12:18,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 474. [2024-11-09 05:12:18,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 453 states have (on average 1.2251655629139073) internal successors, (555), 466 states have internal predecessors, (555), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-09 05:12:18,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 584 transitions. [2024-11-09 05:12:18,256 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 584 transitions. Word has length 129 [2024-11-09 05:12:18,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:18,257 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 584 transitions. [2024-11-09 05:12:18,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 2 states have call successors, (5), 2 states have call predecessors, (5), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 05:12:18,257 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 584 transitions. [2024-11-09 05:12:18,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 05:12:18,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:18,259 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 05:12:18,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:18,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 05:12:18,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:18,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:12:18,860 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:12:18,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:18,861 INFO L85 PathProgramCache]: Analyzing trace with hash 899567467, now seen corresponding path program 2 times [2024-11-09 05:12:18,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:12:18,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164266245] [2024-11-09 05:12:18,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:12:18,862 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 05:12:18,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:12:18,864 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:12:18,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Waiting until timeout for monitored process [2024-11-09 05:12:19,717 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:12:19,717 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:12:19,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:12:19,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:19,902 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 05:12:19,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:20,292 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 05:12:20,293 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:12:20,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164266245] [2024-11-09 05:12:20,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164266245] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:20,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1614719664] [2024-11-09 05:12:20,294 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:12:20,294 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:12:20,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:12:20,297 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:12:20,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-09 05:12:22,217 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:12:22,217 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:12:22,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:12:22,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:22,309 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 05:12:22,311 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:22,469 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 05:12:22,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1614719664] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:22,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916999989] [2024-11-09 05:12:22,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 05:12:22,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:22,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:12:22,472 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:12:22,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 05:12:23,476 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 05:12:23,477 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:12:23,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:12:23,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:23,667 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 05:12:23,667 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:24,066 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 05:12:24,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916999989] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:24,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:12:24,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 20 [2024-11-09 05:12:24,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538597433] [2024-11-09 05:12:24,067 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:12:24,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 05:12:24,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:12:24,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 05:12:24,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2024-11-09 05:12:24,070 INFO L87 Difference]: Start difference. First operand 474 states and 584 transitions. Second operand has 20 states, 20 states have (on average 7.3) internal successors, (146), 20 states have internal predecessors, (146), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:12:25,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:12:25,193 INFO L93 Difference]: Finished difference Result 487 states and 601 transitions. [2024-11-09 05:12:25,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 05:12:25,194 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.3) internal successors, (146), 20 states have internal predecessors, (146), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-09 05:12:25,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:12:25,199 INFO L225 Difference]: With dead ends: 487 [2024-11-09 05:12:25,200 INFO L226 Difference]: Without dead ends: 481 [2024-11-09 05:12:25,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 786 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=292, Invalid=520, Unknown=0, NotChecked=0, Total=812 [2024-11-09 05:12:25,202 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 8 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:12:25,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1763 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:12:25,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-09 05:12:25,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2024-11-09 05:12:25,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 460 states have (on average 1.2217391304347827) internal successors, (562), 473 states have internal predecessors, (562), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-09 05:12:25,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 591 transitions. [2024-11-09 05:12:25,224 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 591 transitions. Word has length 135 [2024-11-09 05:12:25,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:12:25,224 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 591 transitions. [2024-11-09 05:12:25,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.3) internal successors, (146), 20 states have internal predecessors, (146), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:12:25,225 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 591 transitions. [2024-11-09 05:12:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-09 05:12:25,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:12:25,230 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:12:25,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Ended with exit code 0 [2024-11-09 05:12:25,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:25,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 05:12:25,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:12:25,831 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-09 05:12:25,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:12:25,832 INFO L85 PathProgramCache]: Analyzing trace with hash -993513196, now seen corresponding path program 3 times [2024-11-09 05:12:25,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:12:25,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32485247] [2024-11-09 05:12:25,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:12:25,834 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 05:12:25,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:12:25,838 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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 05:12:25,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Waiting until timeout for monitored process [2024-11-09 05:12:30,672 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:12:30,672 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:12:30,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:12:30,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:12:30,870 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 05:12:30,870 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:31,271 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 05:12:31,271 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:12:31,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32485247] [2024-11-09 05:12:31,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32485247] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:31,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1304883502] [2024-11-09 05:12:31,272 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:12:31,272 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:12:31,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:12:31,273 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:12:31,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-09 05:13:25,730 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:13:25,730 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:13:25,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:13:25,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:13:25,889 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 05:13:25,890 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:13:26,085 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 70 proven. 15 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 05:13:26,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1304883502] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:13:26,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717903137] [2024-11-09 05:13:26,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:13:26,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:13:26,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:13:26,087 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:13:26,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_015be84e-361c-449d-ac69-6f7624982b34/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process