./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E --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 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:51:11,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:51:11,794 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2024-11-14 05:51:11,808 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:51:11,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:51:11,847 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:51:11,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:51:11,849 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:51:11,850 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:51:11,850 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:51:11,851 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:51:11,851 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:51:11,851 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:51:11,852 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:51:11,852 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:51:11,852 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:51:11,852 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:51:11,853 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:51:11,853 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:51:11,853 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:51:11,853 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:51:11,853 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:51:11,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 05:51:11,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 05:51:11,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:51:11,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:51:11,855 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:51:11,855 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:51:11,855 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:51:11,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:51:11,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:51:11,855 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 05:51:11,855 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 05:51:11,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:51:11,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:51:11,856 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:51:11,857 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:51:11,857 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:51:11,857 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:51:11,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:51:11,857 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:51:11,858 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:51:11,858 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:51:11,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:51:11,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:51:11,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:51:11,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:51:11,858 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:51:11,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:51:11,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:51:11,859 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:51:11,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:51:11,859 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E 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 -> 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 [2024-11-14 05:51:12,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:51:12,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:51:12,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:51:12,230 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:51:12,230 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:51:12,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i Unable to find full path for "g++" [2024-11-14 05:51:14,082 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:51:14,486 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:51:14,487 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i [2024-11-14 05:51:14,518 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/data/48e5128cc/e1406f70c41147b8a15c3ac4cbf18d2b/FLAG652aac974 [2024-11-14 05:51:14,536 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/data/48e5128cc/e1406f70c41147b8a15c3ac4cbf18d2b [2024-11-14 05:51:14,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:51:14,542 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:51:14,543 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:51:14,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:51:14,550 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:51:14,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:51:14" (1/1) ... [2024-11-14 05:51:14,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28717163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:14, skipping insertion in model container [2024-11-14 05:51:14,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:51:14" (1/1) ... [2024-11-14 05:51:14,615 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:51:15,136 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,187 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,190 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,194 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,200 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,245 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,245 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,248 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,248 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,250 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,252 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,256 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,257 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,257 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,262 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:15,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:51:15,286 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) [2024-11-14 05:51:15,286 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@699ee3da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:15, skipping insertion in model container [2024-11-14 05:51:15,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:51:15,287 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-14 05:51:15,289 INFO L158 Benchmark]: Toolchain (without parser) took 746.23ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 71.9MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:51:15,289 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:51:15,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 743.50ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 71.9MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:51:15,291 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 743.50ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 71.9MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 833]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E --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 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:51:17,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:51:17,721 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2024-11-14 05:51:17,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:51:17,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:51:17,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:51:17,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:51:17,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:51:17,801 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:51:17,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:51:17,801 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:51:17,804 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:51:17,805 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:51:17,805 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:51:17,807 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:51:17,807 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:51:17,807 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-14 05:51:17,808 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-14 05:51:17,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:51:17,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:51:17,808 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:51:17,809 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:51:17,809 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:51:17,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:51:17,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:51:17,809 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-14 05:51:17,809 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-14 05:51:17,809 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:51:17,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:51:17,810 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:51:17,810 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:51:17,810 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:51:17,810 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:51:17,810 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:51:17,810 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:51:17,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:51:17,811 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:51:17,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:51:17,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:51:17,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:51:17,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:51:17,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:51:17,812 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:51:17,812 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:51:17,813 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:51:17,813 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:51:17,813 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:51:17,813 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:51:17,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E 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 -> 5b41ff920513b74db566933dfdd7430dbdb0b5764645b98d18d29abf93fb4135 [2024-11-14 05:51:18,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:51:18,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:51:18,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:51:18,129 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:51:18,129 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:51:18,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i Unable to find full path for "g++" [2024-11-14 05:51:20,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:51:20,428 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:51:20,429 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test2-2.i [2024-11-14 05:51:20,446 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/data/eb232d4e3/ce70a7ebfebe4163adc2eeec1863d946/FLAG741e1c431 [2024-11-14 05:51:20,461 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/data/eb232d4e3/ce70a7ebfebe4163adc2eeec1863d946 [2024-11-14 05:51:20,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:51:20,464 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:51:20,466 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:51:20,466 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:51:20,470 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:51:20,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:51:20" (1/1) ... [2024-11-14 05:51:20,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78d0f1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:20, skipping insertion in model container [2024-11-14 05:51:20,471 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:51:20" (1/1) ... [2024-11-14 05:51:20,517 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:51:21,081 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,113 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,118 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,122 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,130 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,169 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,169 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,172 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,173 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,176 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,179 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,184 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,187 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,192 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,201 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:51:21,236 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-14 05:51:21,256 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:51:21,320 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,345 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,348 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,351 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,356 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,382 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,383 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,385 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,385 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,387 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,389 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,390 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,391 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,392 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,395 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-14 05:51:21,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:51:21,401 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:51:21,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:51:21,612 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:51:21,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:21 WrapperNode [2024-11-14 05:51:21,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:51:21,614 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:51:21,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:51:21,614 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:51:21,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:21" (1/1) ... [2024-11-14 05:51:21,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:21" (1/1) ... [2024-11-14 05:51:21,744 INFO L138 Inliner]: procedures = 211, calls = 280, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1028 [2024-11-14 05:51:21,748 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:51:21,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:51:21,749 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:51:21,749 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:51:21,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:21" (1/1) ... [2024-11-14 05:51:21,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:21" (1/1) ... [2024-11-14 05:51:21,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:21" (1/1) ... [2024-11-14 05:51:21,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:21" (1/1) ... [2024-11-14 05:51:21,804 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:21" (1/1) ... [2024-11-14 05:51:21,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:21" (1/1) ... [2024-11-14 05:51:21,817 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:21" (1/1) ... [2024-11-14 05:51:21,820 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:21" (1/1) ... [2024-11-14 05:51:21,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:51:21,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:51:21,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:51:21,828 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:51:21,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:21" (1/1) ... [2024-11-14 05:51:21,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:51:21,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:51:21,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:51:21,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:51:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-14 05:51:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-14 05:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 05:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 05:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 05:51:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 05:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 05:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:51:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:51:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:51:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:51:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:51:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:51:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:51:22,157 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:51:22,158 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:51:28,829 INFO L? ?]: Removed 136 outVars from TransFormulas that were not future-live. [2024-11-14 05:51:28,829 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:51:28,843 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:51:28,843 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-11-14 05:51:28,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:51:28 BoogieIcfgContainer [2024-11-14 05:51:28,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:51:28,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:51:28,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:51:28,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:51:28,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:51:20" (1/3) ... [2024-11-14 05:51:28,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3061f198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:51:28, skipping insertion in model container [2024-11-14 05:51:28,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:51:21" (2/3) ... [2024-11-14 05:51:28,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3061f198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:51:28, skipping insertion in model container [2024-11-14 05:51:28,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:51:28" (3/3) ... [2024-11-14 05:51:28,856 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test2-2.i [2024-11-14 05:51:28,872 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:51:28,874 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test2-2.i that has 4 procedures, 216 locations, 1 initial locations, 36 loop locations, and 2 error locations. [2024-11-14 05:51:28,929 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:51:28,943 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;@728fe791, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:51:28,943 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 05:51:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 200 states have (on average 1.665) internal successors, (333), 209 states have internal predecessors, (333), 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) [2024-11-14 05:51:28,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:51:28,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:51:28,955 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:51:28,956 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:51:28,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:51:28,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1094821815, now seen corresponding path program 1 times [2024-11-14 05:51:28,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:51:28,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170161764] [2024-11-14 05:51:28,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:51:28,970 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 [2024-11-14 05:51:28,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:51:28,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:51:28,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:51:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:51:29,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:51:29,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:51:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:51:29,224 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:51:29,225 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:51:29,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170161764] [2024-11-14 05:51:29,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170161764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:51:29,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:51:29,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:51:29,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409960141] [2024-11-14 05:51:29,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:51:29,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:51:29,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:51:29,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:51:29,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:51:29,263 INFO L87 Difference]: Start difference. First operand has 216 states, 200 states have (on average 1.665) internal successors, (333), 209 states have internal predecessors, (333), 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) [2024-11-14 05:51:29,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:51:29,306 INFO L93 Difference]: Finished difference Result 214 states and 281 transitions. [2024-11-14 05:51:29,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:51:29,308 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 [2024-11-14 05:51:29,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:51:29,320 INFO L225 Difference]: With dead ends: 214 [2024-11-14 05:51:29,320 INFO L226 Difference]: Without dead ends: 212 [2024-11-14 05:51:29,322 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 [2024-11-14 05:51:29,327 INFO L432 NwaCegarLoop]: 281 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, 281 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 [2024-11-14 05:51:29,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:51:29,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-14 05:51:29,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-11-14 05:51:29,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 198 states have (on average 1.3181818181818181) internal successors, (261), 205 states have internal predecessors, (261), 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) [2024-11-14 05:51:29,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 279 transitions. [2024-11-14 05:51:29,378 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 279 transitions. Word has length 11 [2024-11-14 05:51:29,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:51:29,378 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 279 transitions. [2024-11-14 05:51:29,378 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) [2024-11-14 05:51:29,379 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 279 transitions. [2024-11-14 05:51:29,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:51:29,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:51:29,379 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:51:29,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:51:29,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:51:29,580 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:51:29,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:51:29,581 INFO L85 PathProgramCache]: Analyzing trace with hash 364413156, now seen corresponding path program 1 times [2024-11-14 05:51:29,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:51:29,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717624177] [2024-11-14 05:51:29,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:51:29,582 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 [2024-11-14 05:51:29,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:51:29,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:51:29,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:51:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:51:29,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:51:29,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:51:29,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:51:29,887 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:51:29,888 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:51:29,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717624177] [2024-11-14 05:51:29,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717624177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:51:29,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:51:29,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:51:29,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724760520] [2024-11-14 05:51:29,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:51:29,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:51:29,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:51:29,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:51:29,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:51:29,890 INFO L87 Difference]: Start difference. First operand 212 states and 279 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:51:30,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:51:30,681 INFO L93 Difference]: Finished difference Result 343 states and 456 transitions. [2024-11-14 05:51:30,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:51:30,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-14 05:51:30,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:51:30,685 INFO L225 Difference]: With dead ends: 343 [2024-11-14 05:51:30,685 INFO L226 Difference]: Without dead ends: 343 [2024-11-14 05:51:30,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:51:30,686 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 157 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:51:30,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 520 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 05:51:30,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-14 05:51:30,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 312. [2024-11-14 05:51:30,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 293 states have (on average 1.3242320819112627) internal successors, (388), 305 states have internal predecessors, (388), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:51:30,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 416 transitions. [2024-11-14 05:51:30,717 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 416 transitions. Word has length 13 [2024-11-14 05:51:30,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:51:30,717 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 416 transitions. [2024-11-14 05:51:30,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:51:30,721 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 416 transitions. [2024-11-14 05:51:30,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:51:30,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:51:30,725 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:51:30,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-14 05:51:30,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:51:30,926 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:51:30,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:51:30,931 INFO L85 PathProgramCache]: Analyzing trace with hash 366260198, now seen corresponding path program 1 times [2024-11-14 05:51:30,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:51:30,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106591659] [2024-11-14 05:51:30,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:51:30,931 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 [2024-11-14 05:51:30,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:51:30,937 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:51:30,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:51:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:51:31,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:51:31,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:51:31,244 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:51:31,245 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:51:31,246 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:51:31,258 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 [2024-11-14 05:51:31,350 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:51:31,352 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 [2024-11-14 05:51:31,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:51:31,378 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:51:31,378 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:51:31,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106591659] [2024-11-14 05:51:31,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106591659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:51:31,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:51:31,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:51:31,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626692381] [2024-11-14 05:51:31,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:51:31,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:51:31,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:51:31,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:51:31,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:51:31,380 INFO L87 Difference]: Start difference. First operand 312 states and 416 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:51:34,652 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 [] [2024-11-14 05:51:37,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:51:37,070 INFO L93 Difference]: Finished difference Result 425 states and 578 transitions. [2024-11-14 05:51:37,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:51:37,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-14 05:51:37,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:51:37,074 INFO L225 Difference]: With dead ends: 425 [2024-11-14 05:51:37,074 INFO L226 Difference]: Without dead ends: 425 [2024-11-14 05:51:37,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:51:37,075 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 169 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:51:37,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 692 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2024-11-14 05:51:37,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-14 05:51:37,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 311. [2024-11-14 05:51:37,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 292 states have (on average 1.321917808219178) internal successors, (386), 304 states have internal predecessors, (386), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:51:37,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 414 transitions. [2024-11-14 05:51:37,093 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 414 transitions. Word has length 13 [2024-11-14 05:51:37,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:51:37,094 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 414 transitions. [2024-11-14 05:51:37,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:51:37,094 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 414 transitions. [2024-11-14 05:51:37,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 05:51:37,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:51:37,096 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:51:37,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 05:51:37,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:51:37,300 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:51:37,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:51:37,301 INFO L85 PathProgramCache]: Analyzing trace with hash -137159569, now seen corresponding path program 1 times [2024-11-14 05:51:37,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:51:37,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839843185] [2024-11-14 05:51:37,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:51:37,302 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 [2024-11-14 05:51:37,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:51:37,306 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:51:37,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:51:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:51:37,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:51:37,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:51:37,862 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:51:37,862 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:51:37,862 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:51:37,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839843185] [2024-11-14 05:51:37,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839843185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:51:37,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:51:37,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:51:37,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045808853] [2024-11-14 05:51:37,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:51:37,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:51:37,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:51:37,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:51:37,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:51:37,865 INFO L87 Difference]: Start difference. First operand 311 states and 414 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:51:38,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:51:38,052 INFO L93 Difference]: Finished difference Result 317 states and 404 transitions. [2024-11-14 05:51:38,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:51:38,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-14 05:51:38,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:51:38,055 INFO L225 Difference]: With dead ends: 317 [2024-11-14 05:51:38,056 INFO L226 Difference]: Without dead ends: 317 [2024-11-14 05:51:38,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:51:38,057 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 30 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 728 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 [2024-11-14 05:51:38,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 728 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:51:38,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-14 05:51:38,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2024-11-14 05:51:38,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 298 states have (on average 1.261744966442953) internal successors, (376), 310 states have internal predecessors, (376), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:51:38,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 404 transitions. [2024-11-14 05:51:38,083 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 404 transitions. Word has length 84 [2024-11-14 05:51:38,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:51:38,105 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 404 transitions. [2024-11-14 05:51:38,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:51:38,105 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 404 transitions. [2024-11-14 05:51:38,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 05:51:38,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:51:38,107 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:51:38,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-14 05:51:38,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:51:38,308 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:51:38,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:51:38,308 INFO L85 PathProgramCache]: Analyzing trace with hash 644786555, now seen corresponding path program 1 times [2024-11-14 05:51:38,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:51:38,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289200981] [2024-11-14 05:51:38,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:51:38,309 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 [2024-11-14 05:51:38,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:51:38,313 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:51:38,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:51:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:51:38,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 05:51:38,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:51:39,078 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 05:51:39,079 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:51:39,079 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:51:39,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289200981] [2024-11-14 05:51:39,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289200981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:51:39,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:51:39,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:51:39,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510392798] [2024-11-14 05:51:39,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:51:39,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:51:39,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:51:39,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:51:39,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:51:39,081 INFO L87 Difference]: Start difference. First operand 317 states and 404 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:51:39,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:51:39,185 INFO L93 Difference]: Finished difference Result 305 states and 384 transitions. [2024-11-14 05:51:39,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:51:39,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2024-11-14 05:51:39,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:51:39,187 INFO L225 Difference]: With dead ends: 305 [2024-11-14 05:51:39,187 INFO L226 Difference]: Without dead ends: 305 [2024-11-14 05:51:39,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:51:39,188 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 0 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:51:39,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 725 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:51:39,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-14 05:51:39,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-14 05:51:39,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 286 states have (on average 1.2447552447552448) internal successors, (356), 298 states have internal predecessors, (356), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:51:39,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 384 transitions. [2024-11-14 05:51:39,199 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 384 transitions. Word has length 84 [2024-11-14 05:51:39,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:51:39,199 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 384 transitions. [2024-11-14 05:51:39,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:51:39,199 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 384 transitions. [2024-11-14 05:51:39,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 05:51:39,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:51:39,201 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:51:39,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:51:39,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:51:39,405 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:51:39,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:51:39,406 INFO L85 PathProgramCache]: Analyzing trace with hash 200885881, now seen corresponding path program 1 times [2024-11-14 05:51:39,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:51:39,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346461763] [2024-11-14 05:51:39,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:51:39,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:51:39,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:51:39,408 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:51:39,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:51:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:51:39,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:51:39,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:51:39,957 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:51:39,960 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:51:39,960 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:51:39,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346461763] [2024-11-14 05:51:39,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346461763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:51:39,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:51:39,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:51:39,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699111677] [2024-11-14 05:51:39,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:51:39,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:51:39,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:51:39,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:51:39,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:51:39,963 INFO L87 Difference]: Start difference. First operand 305 states and 384 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:51:40,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:51:40,017 INFO L93 Difference]: Finished difference Result 308 states and 388 transitions. [2024-11-14 05:51:40,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:51:40,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 84 [2024-11-14 05:51:40,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:51:40,020 INFO L225 Difference]: With dead ends: 308 [2024-11-14 05:51:40,020 INFO L226 Difference]: Without dead ends: 308 [2024-11-14 05:51:40,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:51:40,021 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 0 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 779 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 [2024-11-14 05:51:40,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 779 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:51:40,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-14 05:51:40,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2024-11-14 05:51:40,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 288 states have (on average 1.2465277777777777) internal successors, (359), 301 states have internal predecessors, (359), 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) [2024-11-14 05:51:40,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 388 transitions. [2024-11-14 05:51:40,031 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 388 transitions. Word has length 84 [2024-11-14 05:51:40,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:51:40,031 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 388 transitions. [2024-11-14 05:51:40,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 05:51:40,032 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 388 transitions. [2024-11-14 05:51:40,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 05:51:40,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:51:40,034 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:51:40,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:51:40,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:51:40,234 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:51:40,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:51:40,235 INFO L85 PathProgramCache]: Analyzing trace with hash 589035319, now seen corresponding path program 1 times [2024-11-14 05:51:40,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:51:40,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [38858759] [2024-11-14 05:51:40,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:51:40,236 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 [2024-11-14 05:51:40,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:51:40,237 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:51:40,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-14 05:51:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:51:40,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:51:40,762 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:51:40,817 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-14 05:51:40,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:51:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:51:40,958 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:51:40,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [38858759] [2024-11-14 05:51:40,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [38858759] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:51:40,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [673970574] [2024-11-14 05:51:40,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:51:40,959 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:51:40,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:51:40,964 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:51:40,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-14 05:51:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:51:41,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:51:41,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:51:42,053 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 05:51:42,053 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:51:42,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [673970574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:51:42,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:51:42,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2024-11-14 05:51:42,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260504945] [2024-11-14 05:51:42,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:51:42,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:51:42,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:51:42,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:51:42,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:51:42,055 INFO L87 Difference]: Start difference. First operand 308 states and 388 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:51:44,572 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 [] [2024-11-14 05:51:46,575 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 [] [2024-11-14 05:51:48,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:51:48,528 INFO L93 Difference]: Finished difference Result 320 states and 394 transitions. [2024-11-14 05:51:48,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:51:48,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2024-11-14 05:51:48,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:51:48,532 INFO L225 Difference]: With dead ends: 320 [2024-11-14 05:51:48,532 INFO L226 Difference]: Without dead ends: 320 [2024-11-14 05:51:48,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:51:48,536 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 426 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:51:48,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 425 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2024-11-14 05:51:48,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-14 05:51:48,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 251. [2024-11-14 05:51:48,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 236 states have (on average 1.2076271186440677) internal successors, (285), 244 states have internal predecessors, (285), 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) [2024-11-14 05:51:48,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 304 transitions. [2024-11-14 05:51:48,551 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 304 transitions. Word has length 86 [2024-11-14 05:51:48,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:51:48,553 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 304 transitions. [2024-11-14 05:51:48,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:51:48,553 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 304 transitions. [2024-11-14 05:51:48,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-14 05:51:48,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:51:48,558 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] [2024-11-14 05:51:48,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2024-11-14 05:51:48,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-14 05:51:48,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:51:48,959 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:51:48,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:51:48,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1931844207, now seen corresponding path program 1 times [2024-11-14 05:51:48,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:51:48,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769282015] [2024-11-14 05:51:48,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:51:48,960 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 [2024-11-14 05:51:48,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:51:48,962 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:51:48,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:51:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:51:49,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:51:49,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:51:49,788 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:51:49,788 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:51:49,947 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:51:49,948 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:51:49,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769282015] [2024-11-14 05:51:49,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769282015] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:51:49,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1821683202] [2024-11-14 05:51:49,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:51:49,948 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:51:49,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:51:49,950 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:51:49,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-14 05:51:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:51:50,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:51:50,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:51:51,024 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:51:51,025 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:51:51,096 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:51:51,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1821683202] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:51:51,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238991877] [2024-11-14 05:51:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:51:51,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:51:51,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:51:51,100 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:51:51,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 05:51:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:51:51,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 05:51:51,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:51:51,830 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 05:51:51,830 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:51:51,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238991877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:51:51,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2024-11-14 05:51:51,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5, 5] total 10 [2024-11-14 05:51:51,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160773377] [2024-11-14 05:51:51,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:51:51,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:51:51,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:51:51,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:51:51,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:51:51,832 INFO L87 Difference]: Start difference. First operand 251 states and 304 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:51:54,736 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 [] [2024-11-14 05:51:56,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:51:59,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:52:00,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:52:00,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:52:00,934 INFO L93 Difference]: Finished difference Result 253 states and 306 transitions. [2024-11-14 05:52:00,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:52:00,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 95 [2024-11-14 05:52:00,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:52:00,936 INFO L225 Difference]: With dead ends: 253 [2024-11-14 05:52:00,936 INFO L226 Difference]: Without dead ends: 253 [2024-11-14 05:52:00,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:52:00,937 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 220 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:52:00,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 475 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2024-11-14 05:52:00,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-14 05:52:00,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 252. [2024-11-14 05:52:00,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 237 states have (on average 1.2067510548523206) internal successors, (286), 245 states have internal predecessors, (286), 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) [2024-11-14 05:52:00,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 305 transitions. [2024-11-14 05:52:00,951 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 305 transitions. Word has length 95 [2024-11-14 05:52:00,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:52:00,951 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 305 transitions. [2024-11-14 05:52:00,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:52:00,951 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 305 transitions. [2024-11-14 05:52:00,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-14 05:52:00,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:52:00,956 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] [2024-11-14 05:52:00,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:52:01,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-14 05:52:01,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-14 05:52:01,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:52:01,557 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:52:01,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:52:01,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1933691249, now seen corresponding path program 1 times [2024-11-14 05:52:01,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:52:01,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642943963] [2024-11-14 05:52:01,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:52:01,559 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 [2024-11-14 05:52:01,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:52:01,561 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:52:01,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-14 05:52:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:52:02,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:52:02,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:02,480 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:52:02,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:52:02,637 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:52:02,637 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:52:02,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [642943963] [2024-11-14 05:52:02,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [642943963] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:52:02,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [957023619] [2024-11-14 05:52:02,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:52:02,638 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:52:02,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:52:02,640 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:52:02,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-14 05:52:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:52:03,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:52:03,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:52:03,775 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:52:03,854 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:52:03,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [957023619] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:52:03,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104672934] [2024-11-14 05:52:03,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:52:03,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:52:03,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:52:03,856 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:52:03,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 05:52:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:52:04,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:52:04,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:04,546 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:52:04,546 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:52:04,700 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 05:52:04,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104672934] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:52:04,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 05:52:04,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2024-11-14 05:52:04,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897863959] [2024-11-14 05:52:04,702 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 05:52:04,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 05:52:04,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:52:04,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 05:52:04,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:52:04,704 INFO L87 Difference]: Start difference. First operand 252 states and 305 transitions. Second operand has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 05:52:05,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:52:05,267 INFO L93 Difference]: Finished difference Result 267 states and 327 transitions. [2024-11-14 05:52:05,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 05:52:05,273 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 95 [2024-11-14 05:52:05,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:52:05,275 INFO L225 Difference]: With dead ends: 267 [2024-11-14 05:52:05,275 INFO L226 Difference]: Without dead ends: 267 [2024-11-14 05:52:05,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-14 05:52:05,276 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 13 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:52:05,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1531 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:52:05,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-11-14 05:52:05,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 263. [2024-11-14 05:52:05,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 247 states have (on average 1.2307692307692308) internal successors, (304), 255 states have internal predecessors, (304), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-14 05:52:05,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 323 transitions. [2024-11-14 05:52:05,291 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 323 transitions. Word has length 95 [2024-11-14 05:52:05,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:52:05,291 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 323 transitions. [2024-11-14 05:52:05,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 05:52:05,291 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 323 transitions. [2024-11-14 05:52:05,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-14 05:52:05,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:52:05,293 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] [2024-11-14 05:52:05,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 05:52:05,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-14 05:52:05,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2024-11-14 05:52:05,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:52:05,894 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:52:05,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:52:05,894 INFO L85 PathProgramCache]: Analyzing trace with hash -72768913, now seen corresponding path program 2 times [2024-11-14 05:52:05,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:52:05,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718142959] [2024-11-14 05:52:05,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 05:52:05,895 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 [2024-11-14 05:52:05,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:52:05,898 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:52:05,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:52:06,393 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-14 05:52:06,393 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:52:06,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:52:06,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:06,417 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:52:06,418 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:52:06,418 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-14 05:52:06,421 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 [2024-11-14 05:52:06,502 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 05:52:06,503 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 [2024-11-14 05:52:06,522 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-14 05:52:06,522 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:52:06,522 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:52:06,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718142959] [2024-11-14 05:52:06,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718142959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:52:06,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:52:06,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:52:06,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503222082] [2024-11-14 05:52:06,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:52:06,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:52:06,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:52:06,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:52:06,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:52:06,524 INFO L87 Difference]: Start difference. First operand 263 states and 323 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:52:10,673 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 [] [2024-11-14 05:52:14,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:52:14,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:52:14,850 INFO L93 Difference]: Finished difference Result 337 states and 426 transitions. [2024-11-14 05:52:14,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:52:14,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2024-11-14 05:52:14,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:52:14,853 INFO L225 Difference]: With dead ends: 337 [2024-11-14 05:52:14,853 INFO L226 Difference]: Without dead ends: 337 [2024-11-14 05:52:14,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:52:14,854 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 126 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:52:14,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 657 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2024-11-14 05:52:14,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-14 05:52:14,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 265. [2024-11-14 05:52:14,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 249 states have (on average 1.2289156626506024) internal successors, (306), 257 states have internal predecessors, (306), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-14 05:52:14,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 325 transitions. [2024-11-14 05:52:14,866 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 325 transitions. Word has length 101 [2024-11-14 05:52:14,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:52:14,866 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 325 transitions. [2024-11-14 05:52:14,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:52:14,867 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 325 transitions. [2024-11-14 05:52:14,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 05:52:14,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:52:14,869 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] [2024-11-14 05:52:14,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:52:15,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:52:15,070 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:52:15,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:52:15,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1232159029, now seen corresponding path program 1 times [2024-11-14 05:52:15,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:52:15,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745710526] [2024-11-14 05:52:15,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:52:15,071 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 [2024-11-14 05:52:15,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:52:15,073 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:52:15,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-14 05:52:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:52:15,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:52:15,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:16,027 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 05:52:16,027 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:52:16,478 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 05:52:16,478 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:52:16,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745710526] [2024-11-14 05:52:16,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745710526] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:52:16,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [69045851] [2024-11-14 05:52:16,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:52:16,479 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:52:16,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:52:16,482 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:52:16,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-14 05:52:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:52:17,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:52:17,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:17,732 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-14 05:52:17,732 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:52:17,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [69045851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:52:17,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:52:17,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8, 8] total 15 [2024-11-14 05:52:17,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401605660] [2024-11-14 05:52:17,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:52:17,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:52:17,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:52:17,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:52:17,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 05:52:17,734 INFO L87 Difference]: Start difference. First operand 265 states and 325 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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) [2024-11-14 05:52:17,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:52:17,869 INFO L93 Difference]: Finished difference Result 285 states and 345 transitions. [2024-11-14 05:52:17,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:52:17,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 135 [2024-11-14 05:52:17,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:52:17,871 INFO L225 Difference]: With dead ends: 285 [2024-11-14 05:52:17,871 INFO L226 Difference]: Without dead ends: 285 [2024-11-14 05:52:17,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 05:52:17,872 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 5 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:52:17,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 469 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:52:17,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-14 05:52:17,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2024-11-14 05:52:17,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 269 states have (on average 1.211895910780669) internal successors, (326), 277 states have internal predecessors, (326), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-14 05:52:17,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 345 transitions. [2024-11-14 05:52:17,881 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 345 transitions. Word has length 135 [2024-11-14 05:52:17,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:52:17,881 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 345 transitions. [2024-11-14 05:52:17,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 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) [2024-11-14 05:52:17,882 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 345 transitions. [2024-11-14 05:52:17,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 05:52:17,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:52:17,883 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] [2024-11-14 05:52:17,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2024-11-14 05:52:18,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-14 05:52:18,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:52:18,284 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:52:18,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:52:18,285 INFO L85 PathProgramCache]: Analyzing trace with hash -818824969, now seen corresponding path program 1 times [2024-11-14 05:52:18,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:52:18,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699590124] [2024-11-14 05:52:18,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:52:18,286 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 [2024-11-14 05:52:18,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:52:18,289 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:52:18,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:52:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:52:19,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:52:19,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:19,240 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 05:52:19,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:52:19,673 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 05:52:19,673 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:52:19,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699590124] [2024-11-14 05:52:19,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [699590124] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:52:19,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [80071362] [2024-11-14 05:52:19,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:52:19,674 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:52:19,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:52:19,676 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:52:19,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-14 05:52:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:52:20,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:52:20,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-14 05:52:21,037 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:52:21,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [80071362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:52:21,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:52:21,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 16 [2024-11-14 05:52:21,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460297224] [2024-11-14 05:52:21,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:52:21,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:52:21,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:52:21,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:52:21,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-14 05:52:21,039 INFO L87 Difference]: Start difference. First operand 285 states and 345 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:52:21,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:52:21,236 INFO L93 Difference]: Finished difference Result 268 states and 317 transitions. [2024-11-14 05:52:21,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:52:21,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 135 [2024-11-14 05:52:21,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:52:21,241 INFO L225 Difference]: With dead ends: 268 [2024-11-14 05:52:21,241 INFO L226 Difference]: Without dead ends: 268 [2024-11-14 05:52:21,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-14 05:52:21,242 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 32 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:52:21,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 673 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:52:21,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-14 05:52:21,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-14 05:52:21,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 252 states have (on average 1.1825396825396826) internal successors, (298), 260 states have internal predecessors, (298), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-14 05:52:21,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 317 transitions. [2024-11-14 05:52:21,254 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 317 transitions. Word has length 135 [2024-11-14 05:52:21,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:52:21,255 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 317 transitions. [2024-11-14 05:52:21,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 05:52:21,256 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 317 transitions. [2024-11-14 05:52:21,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 05:52:21,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:52:21,257 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] [2024-11-14 05:52:21,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-14 05:52:21,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 05:52:21,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:52:21,659 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:52:21,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:52:21,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1205111209, now seen corresponding path program 1 times [2024-11-14 05:52:21,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:52:21,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822852406] [2024-11-14 05:52:21,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:52:21,661 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 [2024-11-14 05:52:21,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:52:21,663 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:52:21,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-14 05:52:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:52:22,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:52:22,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:22,761 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 05:52:22,761 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:52:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 05:52:23,105 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:52:23,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822852406] [2024-11-14 05:52:23,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822852406] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:52:23,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1095546056] [2024-11-14 05:52:23,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:52:23,106 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:52:23,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:52:23,109 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:52:23,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-14 05:52:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:52:24,621 INFO L255 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:52:24,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:24,661 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 05:52:24,661 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:52:24,815 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 05:52:24,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1095546056] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:52:24,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43534605] [2024-11-14 05:52:24,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:52:24,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:52:24,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:52:24,818 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:52:24,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 05:52:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:52:25,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:52:25,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:25,797 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 05:52:25,797 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:52:26,253 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 29 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-14 05:52:26,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43534605] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:52:26,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 05:52:26,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 22 [2024-11-14 05:52:26,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102266123] [2024-11-14 05:52:26,254 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 05:52:26,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 05:52:26,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:52:26,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 05:52:26,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2024-11-14 05:52:26,256 INFO L87 Difference]: Start difference. First operand 268 states and 317 transitions. Second operand has 22 states, 22 states have (on average 6.818181818181818) internal successors, (150), 22 states have internal predecessors, (150), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 05:52:28,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:52:28,022 INFO L93 Difference]: Finished difference Result 288 states and 346 transitions. [2024-11-14 05:52:28,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 05:52:28,023 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.818181818181818) internal successors, (150), 22 states have internal predecessors, (150), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 135 [2024-11-14 05:52:28,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:52:28,024 INFO L225 Difference]: With dead ends: 288 [2024-11-14 05:52:28,024 INFO L226 Difference]: Without dead ends: 282 [2024-11-14 05:52:28,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 825 GetRequests, 784 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=505, Invalid=1301, Unknown=0, NotChecked=0, Total=1806 [2024-11-14 05:52:28,025 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 25 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2927 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:52:28,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2927 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:52:28,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-14 05:52:28,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 280. [2024-11-14 05:52:28,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 264 states have (on average 1.1931818181818181) internal successors, (315), 272 states have internal predecessors, (315), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-14 05:52:28,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 334 transitions. [2024-11-14 05:52:28,035 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 334 transitions. Word has length 135 [2024-11-14 05:52:28,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:52:28,035 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 334 transitions. [2024-11-14 05:52:28,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.818181818181818) internal successors, (150), 22 states have internal predecessors, (150), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 05:52:28,035 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 334 transitions. [2024-11-14 05:52:28,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-14 05:52:28,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:52:28,037 INFO L215 NwaCegarLoop]: trace histogram [20, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:52:28,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2024-11-14 05:52:28,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 05:52:28,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-14 05:52:28,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:52:28,639 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:52:28,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:52:28,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1945817431, now seen corresponding path program 2 times [2024-11-14 05:52:28,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:52:28,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016988227] [2024-11-14 05:52:28,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 05:52:28,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:52:28,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:52:28,643 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:52:28,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-14 05:52:29,656 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 05:52:29,656 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:52:29,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 05:52:29,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:30,048 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 126 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-14 05:52:30,048 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:52:31,007 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 178 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 05:52:31,007 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:52:31,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016988227] [2024-11-14 05:52:31,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016988227] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:52:31,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [784678477] [2024-11-14 05:52:31,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 05:52:31,008 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:52:31,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:52:31,010 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:52:31,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-14 05:52:33,068 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 05:52:33,068 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:52:33,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 05:52:33,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 126 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-14 05:52:33,145 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:52:33,343 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 2 proven. 178 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 05:52:33,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [784678477] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:52:33,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152020677] [2024-11-14 05:52:33,343 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 05:52:33,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:52:33,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:52:33,349 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:52:33,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-14 05:52:34,437 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 05:52:34,437 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:52:34,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 05:52:34,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:34,626 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 05:52:34,626 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:52:36,026 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 125 proven. 55 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-14 05:52:36,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152020677] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:52:36,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 05:52:36,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 14, 14] total 40 [2024-11-14 05:52:36,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409586856] [2024-11-14 05:52:36,027 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 05:52:36,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-14 05:52:36,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:52:36,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-14 05:52:36,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=1147, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 05:52:36,030 INFO L87 Difference]: Start difference. First operand 280 states and 334 transitions. Second operand has 40 states, 40 states have (on average 4.2) internal successors, (168), 40 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 05:52:41,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:52:41,912 INFO L93 Difference]: Finished difference Result 312 states and 387 transitions. [2024-11-14 05:52:41,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-14 05:52:41,913 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 4.2) internal successors, (168), 40 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 147 [2024-11-14 05:52:41,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:52:41,915 INFO L225 Difference]: With dead ends: 312 [2024-11-14 05:52:41,915 INFO L226 Difference]: Without dead ends: 306 [2024-11-14 05:52:41,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 838 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1873, Invalid=5267, Unknown=0, NotChecked=0, Total=7140 [2024-11-14 05:52:41,917 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 49 mSDsluCounter, 5595 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 5843 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:52:41,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 5843 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 05:52:41,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-14 05:52:41,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 304. [2024-11-14 05:52:41,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 288 states have (on average 1.2152777777777777) internal successors, (350), 296 states have internal predecessors, (350), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-14 05:52:41,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 369 transitions. [2024-11-14 05:52:41,926 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 369 transitions. Word has length 147 [2024-11-14 05:52:41,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:52:41,926 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 369 transitions. [2024-11-14 05:52:41,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 4.2) internal successors, (168), 40 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 05:52:41,927 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 369 transitions. [2024-11-14 05:52:41,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-14 05:52:41,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:52:41,930 INFO L215 NwaCegarLoop]: trace histogram [44, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:52:41,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2024-11-14 05:52:42,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-14 05:52:42,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2024-11-14 05:52:42,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:52:42,531 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-14 05:52:42,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:52:42,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2043041623, now seen corresponding path program 3 times [2024-11-14 05:52:42,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:52:42,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292056514] [2024-11-14 05:52:42,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:52:42,533 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 [2024-11-14 05:52:42,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:52:42,534 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 05:52:42,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-14 05:52:48,648 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-11-14 05:52:48,648 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:52:48,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 05:52:48,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:52:49,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 533 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-14 05:52:49,456 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:52:52,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 533 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-14 05:52:52,313 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:52:52,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292056514] [2024-11-14 05:52:52,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292056514] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:52:52,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1627801671] [2024-11-14 05:52:52,313 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:52:52,314 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:52:52,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:52:52,316 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:52:52,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2024-11-14 05:59:02,407 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-11-14 05:59:02,408 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:59:02,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 05:59:02,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:59:02,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 533 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-14 05:59:02,679 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:59:03,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 533 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-14 05:59:03,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1627801671] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:59:03,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138347419] [2024-11-14 05:59:03,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:59:03,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:59:03,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:59:03,250 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:59:03,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bbbbf65-008c-412a-a4ca-767554c11c92/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process