./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:53:33,775 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:53:33,883 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-24 23:53:33,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:53:33,894 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:53:33,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:53:33,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:53:33,941 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:53:33,942 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:53:33,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:53:33,948 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:53:33,949 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:53:33,949 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:53:33,951 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:53:33,952 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:53:33,952 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:53:33,953 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:53:33,953 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:53:33,954 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:53:33,954 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:53:33,956 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:53:33,958 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:53:33,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:53:33,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:53:33,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:53:33,961 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:53:33,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:53:33,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:53:33,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:53:33,962 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:53:33,964 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:53:33,965 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 23:53:33,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:53:33,965 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:53:33,966 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:53:33,966 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:53:33,966 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:53:33,966 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:53:33,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:53:33,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:53:33,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:53:33,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:53:33,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:53:33,968 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:53:33,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:53:33,969 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:53:33,969 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:53:33,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:53:33,970 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf [2023-11-24 23:53:34,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:53:34,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:53:34,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:53:34,340 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:53:34,341 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:53:34,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2023-11-24 23:53:37,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:53:37,931 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:53:37,932 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2023-11-24 23:53:37,955 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/data/3b52c7a43/e4f25e580fff42ca804ce010f3631420/FLAG64ab64052 [2023-11-24 23:53:37,972 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/data/3b52c7a43/e4f25e580fff42ca804ce010f3631420 [2023-11-24 23:53:37,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:53:37,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:53:37,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:53:37,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:53:37,985 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:53:37,986 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:53:37" (1/1) ... [2023-11-24 23:53:37,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@568a8379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:37, skipping insertion in model container [2023-11-24 23:53:37,988 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:53:37" (1/1) ... [2023-11-24 23:53:38,075 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:53:38,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:53:38,950 ERROR L324 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) [2023-11-24 23:53:38,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@75713e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:38, skipping insertion in model container [2023-11-24 23:53:38,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:53:38,952 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 23:53:38,954 INFO L158 Benchmark]: Toolchain (without parser) took 976.31ms. Allocated memory is still 159.4MB. Free memory was 120.0MB in the beginning and 97.0MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-24 23:53:38,954 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 159.4MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:53:38,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 973.50ms. Allocated memory is still 159.4MB. Free memory was 119.9MB in the beginning and 97.3MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-24 23:53:38,957 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 159.4MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 973.50ms. Allocated memory is still 159.4MB. Free memory was 119.9MB in the beginning and 97.3MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 990]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:53:41,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:53:41,622 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-24 23:53:41,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:53:41,629 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:53:41,681 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:53:41,682 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:53:41,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:53:41,684 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:53:41,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:53:41,690 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:53:41,690 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:53:41,691 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:53:41,693 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:53:41,693 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:53:41,694 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:53:41,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:53:41,695 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:53:41,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:53:41,697 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:53:41,698 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:53:41,699 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:53:41,699 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:53:41,699 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:53:41,700 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:53:41,700 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 23:53:41,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:53:41,701 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:53:41,702 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:53:41,702 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:53:41,704 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:53:41,704 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:53:41,705 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:53:41,705 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:53:41,705 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:53:41,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:53:41,707 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:53:41,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:53:41,708 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:53:41,708 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:53:41,708 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:53:41,709 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:53:41,709 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:53:41,709 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:53:41,710 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:53:41,710 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf [2023-11-24 23:53:42,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:53:42,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:53:42,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:53:42,214 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:53:42,215 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:53:42,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2023-11-24 23:53:45,474 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:53:45,916 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:53:45,917 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2023-11-24 23:53:45,957 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/data/442a0bc78/38b912499b32474da23d34ea3e03b77b/FLAG48e857b9e [2023-11-24 23:53:45,977 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/data/442a0bc78/38b912499b32474da23d34ea3e03b77b [2023-11-24 23:53:45,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:53:45,984 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:53:45,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:53:45,990 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:53:45,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:53:45,996 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:53:45" (1/1) ... [2023-11-24 23:53:45,998 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c000276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:45, skipping insertion in model container [2023-11-24 23:53:45,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:53:45" (1/1) ... [2023-11-24 23:53:46,097 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:53:47,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:53:47,182 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 23:53:47,204 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:53:47,368 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:53:47,374 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:53:47,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:53:47,578 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:47,587 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:53:47,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:47 WrapperNode [2023-11-24 23:53:47,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:53:47,589 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:53:47,589 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:53:47,589 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:53:47,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:47" (1/1) ... [2023-11-24 23:53:47,643 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:47" (1/1) ... [2023-11-24 23:53:47,724 INFO L138 Inliner]: procedures = 285, calls = 351, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1213 [2023-11-24 23:53:47,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:53:47,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:53:47,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:53:47,726 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:53:47,736 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:47" (1/1) ... [2023-11-24 23:53:47,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:47" (1/1) ... [2023-11-24 23:53:47,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:47" (1/1) ... [2023-11-24 23:53:47,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:47" (1/1) ... [2023-11-24 23:53:47,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:47" (1/1) ... [2023-11-24 23:53:47,882 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:47" (1/1) ... [2023-11-24 23:53:47,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:47" (1/1) ... [2023-11-24 23:53:47,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:47" (1/1) ... [2023-11-24 23:53:47,925 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:53:47,940 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:53:47,940 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:53:47,940 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:53:47,941 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:47" (1/1) ... [2023-11-24 23:53:47,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:53:47,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:53:47,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:53:48,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:53:48,044 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-24 23:53:48,044 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-24 23:53:48,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-24 23:53:48,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:53:48,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:53:48,045 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 23:53:48,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:53:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:53:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:53:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:53:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-24 23:53:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-24 23:53:48,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:53:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:53:48,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:53:48,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:53:48,048 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-24 23:53:48,048 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-24 23:53:48,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:53:48,049 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-24 23:53:48,049 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-24 23:53:48,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:53:48,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:53:48,361 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:53:48,363 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:53:54,861 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:53:55,201 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:53:55,202 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-24 23:53:55,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:53:55 BoogieIcfgContainer [2023-11-24 23:53:55,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:53:55,206 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:53:55,206 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:53:55,210 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:53:55,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:53:45" (1/3) ... [2023-11-24 23:53:55,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6624f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:53:55, skipping insertion in model container [2023-11-24 23:53:55,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:47" (2/3) ... [2023-11-24 23:53:55,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6624f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:53:55, skipping insertion in model container [2023-11-24 23:53:55,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:53:55" (3/3) ... [2023-11-24 23:53:55,216 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-2.i [2023-11-24 23:53:55,239 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:53:55,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 631 error locations. [2023-11-24 23:53:55,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:53:55,359 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@72f302db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:53:55,360 INFO L358 AbstractCegarLoop]: Starting to check reachability of 631 error locations. [2023-11-24 23:53:55,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 1163 states, 507 states have (on average 2.5305719921104535) internal successors, (1283), 1141 states have internal predecessors, (1283), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-24 23:53:55,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 23:53:55,381 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:55,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 23:53:55,382 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-24 23:53:55,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:55,388 INFO L85 PathProgramCache]: Analyzing trace with hash 64540, now seen corresponding path program 1 times [2023-11-24 23:53:55,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:53:55,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774104062] [2023-11-24 23:53:55,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:55,400 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 [2023-11-24 23:53:55,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:53:55,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-24 23:53:55,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-24 23:53:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:55,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:53:55,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:53:55,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 23:53:55,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:53:55,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:53:55,699 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:53:55,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774104062] [2023-11-24 23:53:55,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774104062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:53:55,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:53:55,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:53:55,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127955955] [2023-11-24 23:53:55,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:53:55,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:53:55,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:53:55,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:53:55,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:53:55,742 INFO L87 Difference]: Start difference. First operand has 1163 states, 507 states have (on average 2.5305719921104535) internal successors, (1283), 1141 states have internal predecessors, (1283), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-24 23:53:59,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:53:59,190 INFO L93 Difference]: Finished difference Result 1400 states and 1492 transitions. [2023-11-24 23:53:59,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:53:59,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-24 23:53:59,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:53:59,219 INFO L225 Difference]: With dead ends: 1400 [2023-11-24 23:53:59,220 INFO L226 Difference]: Without dead ends: 1399 [2023-11-24 23:53:59,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:53:59,226 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 828 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:53:59,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1044 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-24 23:53:59,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2023-11-24 23:53:59,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 1176. [2023-11-24 23:53:59,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1176 states, 535 states have (on average 2.3626168224299064) internal successors, (1264), 1156 states have internal predecessors, (1264), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-24 23:53:59,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 1298 transitions. [2023-11-24 23:53:59,344 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 1298 transitions. Word has length 2 [2023-11-24 23:53:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:53:59,344 INFO L495 AbstractCegarLoop]: Abstraction has 1176 states and 1298 transitions. [2023-11-24 23:53:59,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-24 23:53:59,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 1298 transitions. [2023-11-24 23:53:59,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 23:53:59,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:59,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 23:53:59,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-24 23:53:59,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:53:59,549 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-24 23:53:59,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:59,549 INFO L85 PathProgramCache]: Analyzing trace with hash 64541, now seen corresponding path program 1 times [2023-11-24 23:53:59,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:53:59,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40103181] [2023-11-24 23:53:59,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:59,550 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 [2023-11-24 23:53:59,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:53:59,552 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-24 23:53:59,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-24 23:53:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:59,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:53:59,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:53:59,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 23:53:59,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:53:59,753 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:53:59,753 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:53:59,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40103181] [2023-11-24 23:53:59,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40103181] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:53:59,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:53:59,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:53:59,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593136461] [2023-11-24 23:53:59,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:53:59,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:53:59,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:53:59,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:53:59,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:53:59,757 INFO L87 Difference]: Start difference. First operand 1176 states and 1298 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-24 23:54:04,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:54:04,743 INFO L93 Difference]: Finished difference Result 1715 states and 1886 transitions. [2023-11-24 23:54:04,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:54:04,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-24 23:54:04,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:54:04,756 INFO L225 Difference]: With dead ends: 1715 [2023-11-24 23:54:04,756 INFO L226 Difference]: Without dead ends: 1715 [2023-11-24 23:54:04,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:04,758 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 572 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:54:04,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1449 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-24 23:54:04,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-11-24 23:54:04,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1346. [2023-11-24 23:54:04,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 704 states have (on average 2.3323863636363638) internal successors, (1642), 1324 states have internal predecessors, (1642), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-24 23:54:04,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1680 transitions. [2023-11-24 23:54:04,807 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1680 transitions. Word has length 2 [2023-11-24 23:54:04,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:54:04,807 INFO L495 AbstractCegarLoop]: Abstraction has 1346 states and 1680 transitions. [2023-11-24 23:54:04,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-24 23:54:04,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1680 transitions. [2023-11-24 23:54:04,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:54:04,808 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:04,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 23:54:04,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-24 23:54:05,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:54:05,011 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-24 23:54:05,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:05,011 INFO L85 PathProgramCache]: Analyzing trace with hash -522425799, now seen corresponding path program 1 times [2023-11-24 23:54:05,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:54:05,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702979322] [2023-11-24 23:54:05,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:05,012 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 [2023-11-24 23:54:05,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:54:05,019 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-24 23:54:05,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-24 23:54:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:54:05,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 23:54:05,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:54:05,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 23:54:05,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 23:54:05,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:54:05,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-24 23:54:05,392 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 23:54:05,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-24 23:54:05,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:54:05,416 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:54:05,417 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:54:05,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702979322] [2023-11-24 23:54:05,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702979322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:54:05,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:54:05,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:54:05,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230613546] [2023-11-24 23:54:05,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:54:05,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:54:05,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:54:05,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:54:05,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:54:05,420 INFO L87 Difference]: Start difference. First operand 1346 states and 1680 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-24 23:54:11,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:54:11,985 INFO L93 Difference]: Finished difference Result 2319 states and 2733 transitions. [2023-11-24 23:54:11,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:54:11,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-24 23:54:11,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:54:11,999 INFO L225 Difference]: With dead ends: 2319 [2023-11-24 23:54:12,000 INFO L226 Difference]: Without dead ends: 2319 [2023-11-24 23:54:12,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:54:12,001 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 1832 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-24 23:54:12,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 1182 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1458 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-24 23:54:12,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2023-11-24 23:54:12,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 1462. [2023-11-24 23:54:12,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 820 states have (on average 2.3121951219512193) internal successors, (1896), 1440 states have internal predecessors, (1896), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-24 23:54:12,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1934 transitions. [2023-11-24 23:54:12,052 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1934 transitions. Word has length 6 [2023-11-24 23:54:12,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:54:12,052 INFO L495 AbstractCegarLoop]: Abstraction has 1462 states and 1934 transitions. [2023-11-24 23:54:12,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-24 23:54:12,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1934 transitions. [2023-11-24 23:54:12,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:54:12,053 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:12,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:12,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-24 23:54:12,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:54:12,261 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-24 23:54:12,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:12,261 INFO L85 PathProgramCache]: Analyzing trace with hash 984669438, now seen corresponding path program 1 times [2023-11-24 23:54:12,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:54:12,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935294458] [2023-11-24 23:54:12,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:12,263 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 [2023-11-24 23:54:12,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:54:12,264 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-24 23:54:12,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-24 23:54:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:54:12,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:54:12,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:54:12,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-24 23:54:12,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:54:12,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:54:12,458 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:54:12,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935294458] [2023-11-24 23:54:12,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935294458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:54:12,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:54:12,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:54:12,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807335821] [2023-11-24 23:54:12,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:54:12,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:54:12,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:54:12,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:54:12,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:12,462 INFO L87 Difference]: Start difference. First operand 1462 states and 1934 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:54:15,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:54:15,298 INFO L93 Difference]: Finished difference Result 1941 states and 2638 transitions. [2023-11-24 23:54:15,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:54:15,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-24 23:54:15,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:54:15,328 INFO L225 Difference]: With dead ends: 1941 [2023-11-24 23:54:15,328 INFO L226 Difference]: Without dead ends: 1941 [2023-11-24 23:54:15,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:15,329 INFO L413 NwaCegarLoop]: 997 mSDtfsCounter, 869 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:54:15,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 1335 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-24 23:54:15,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2023-11-24 23:54:15,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1417. [2023-11-24 23:54:15,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 820 states have (on average 2.2402439024390244) internal successors, (1837), 1395 states have internal predecessors, (1837), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-24 23:54:15,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 1875 transitions. [2023-11-24 23:54:15,371 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 1875 transitions. Word has length 7 [2023-11-24 23:54:15,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:54:15,372 INFO L495 AbstractCegarLoop]: Abstraction has 1417 states and 1875 transitions. [2023-11-24 23:54:15,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:54:15,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 1875 transitions. [2023-11-24 23:54:15,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:54:15,373 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:15,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:15,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-24 23:54:15,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:54:15,576 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-24 23:54:15,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:15,577 INFO L85 PathProgramCache]: Analyzing trace with hash 984669439, now seen corresponding path program 1 times [2023-11-24 23:54:15,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:54:15,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880776882] [2023-11-24 23:54:15,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:15,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:54:15,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:54:15,578 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-24 23:54:15,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-24 23:54:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:54:15,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 23:54:15,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:54:15,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-24 23:54:15,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:54:15,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:54:15,775 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:54:15,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880776882] [2023-11-24 23:54:15,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880776882] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:54:15,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:54:15,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:54:15,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274637804] [2023-11-24 23:54:15,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:54:15,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:54:15,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:54:15,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:54:15,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:15,778 INFO L87 Difference]: Start difference. First operand 1417 states and 1875 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:54:20,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:54:20,058 INFO L93 Difference]: Finished difference Result 1974 states and 2627 transitions. [2023-11-24 23:54:20,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:54:20,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-24 23:54:20,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:54:20,071 INFO L225 Difference]: With dead ends: 1974 [2023-11-24 23:54:20,071 INFO L226 Difference]: Without dead ends: 1974 [2023-11-24 23:54:20,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:20,077 INFO L413 NwaCegarLoop]: 1151 mSDtfsCounter, 620 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:54:20,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1600 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-24 23:54:20,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2023-11-24 23:54:20,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1407. [2023-11-24 23:54:20,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 820 states have (on average 2.2109756097560975) internal successors, (1813), 1385 states have internal predecessors, (1813), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-24 23:54:20,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 1851 transitions. [2023-11-24 23:54:20,130 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 1851 transitions. Word has length 7 [2023-11-24 23:54:20,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:54:20,130 INFO L495 AbstractCegarLoop]: Abstraction has 1407 states and 1851 transitions. [2023-11-24 23:54:20,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:54:20,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 1851 transitions. [2023-11-24 23:54:20,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:54:20,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:20,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:20,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-24 23:54:20,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:54:20,335 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-24 23:54:20,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:20,335 INFO L85 PathProgramCache]: Analyzing trace with hash -320660464, now seen corresponding path program 1 times [2023-11-24 23:54:20,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:54:20,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494936695] [2023-11-24 23:54:20,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:20,336 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 [2023-11-24 23:54:20,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:54:20,337 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-24 23:54:20,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-24 23:54:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:54:20,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:54:20,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:54:20,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:54:20,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:54:20,604 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:54:20,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494936695] [2023-11-24 23:54:20,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494936695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:54:20,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:54:20,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:54:20,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991365331] [2023-11-24 23:54:20,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:54:20,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:54:20,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:54:20,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:54:20,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:54:20,606 INFO L87 Difference]: Start difference. First operand 1407 states and 1851 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-24 23:54:23,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:54:23,680 INFO L93 Difference]: Finished difference Result 2018 states and 2566 transitions. [2023-11-24 23:54:23,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:54:23,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 12 [2023-11-24 23:54:23,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:54:23,694 INFO L225 Difference]: With dead ends: 2018 [2023-11-24 23:54:23,695 INFO L226 Difference]: Without dead ends: 2018 [2023-11-24 23:54:23,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:54:23,697 INFO L413 NwaCegarLoop]: 1156 mSDtfsCounter, 682 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 3075 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:54:23,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 3075 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-24 23:54:23,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2023-11-24 23:54:23,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 1624. [2023-11-24 23:54:23,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1034 states have (on average 2.2088974854932304) internal successors, (2284), 1599 states have internal predecessors, (2284), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-24 23:54:23,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2328 transitions. [2023-11-24 23:54:23,752 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2328 transitions. Word has length 12 [2023-11-24 23:54:23,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:54:23,752 INFO L495 AbstractCegarLoop]: Abstraction has 1624 states and 2328 transitions. [2023-11-24 23:54:23,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-24 23:54:23,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2328 transitions. [2023-11-24 23:54:23,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:54:23,753 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:23,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:23,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-24 23:54:23,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:54:23,956 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr332REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-24 23:54:23,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:23,957 INFO L85 PathProgramCache]: Analyzing trace with hash -909869265, now seen corresponding path program 1 times [2023-11-24 23:54:23,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:54:23,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798473428] [2023-11-24 23:54:23,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:23,957 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 [2023-11-24 23:54:23,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:54:23,958 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-24 23:54:23,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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 [2023-11-24 23:54:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:54:24,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:54:24,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:54:24,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:54:24,146 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:54:24,146 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:54:24,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798473428] [2023-11-24 23:54:24,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798473428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:54:24,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:54:24,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:54:24,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122968238] [2023-11-24 23:54:24,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:54:24,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:54:24,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:54:24,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:54:24,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:24,149 INFO L87 Difference]: Start difference. First operand 1624 states and 2328 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:54:25,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:54:25,267 INFO L93 Difference]: Finished difference Result 1540 states and 2168 transitions. [2023-11-24 23:54:25,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:54:25,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-24 23:54:25,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:54:25,276 INFO L225 Difference]: With dead ends: 1540 [2023-11-24 23:54:25,277 INFO L226 Difference]: Without dead ends: 1540 [2023-11-24 23:54:25,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:25,278 INFO L413 NwaCegarLoop]: 992 mSDtfsCounter, 70 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:54:25,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1935 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-24 23:54:25,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2023-11-24 23:54:25,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1540. [2023-11-24 23:54:25,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 974 states have (on average 2.1806981519507187) internal successors, (2124), 1515 states have internal predecessors, (2124), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-24 23:54:25,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2168 transitions. [2023-11-24 23:54:25,319 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2168 transitions. Word has length 12 [2023-11-24 23:54:25,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:54:25,319 INFO L495 AbstractCegarLoop]: Abstraction has 1540 states and 2168 transitions. [2023-11-24 23:54:25,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:54:25,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2168 transitions. [2023-11-24 23:54:25,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:54:25,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:25,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:25,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-24 23:54:25,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:54:25,548 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-24 23:54:25,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:25,548 INFO L85 PathProgramCache]: Analyzing trace with hash -607253788, now seen corresponding path program 1 times [2023-11-24 23:54:25,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:54:25,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784517490] [2023-11-24 23:54:25,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:25,549 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 [2023-11-24 23:54:25,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:54:25,550 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-24 23:54:25,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-24 23:54:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:54:25,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:54:25,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:54:25,788 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:54:25,789 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:54:25,789 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:54:25,801 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 [2023-11-24 23:54:25,866 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:54:25,867 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 [2023-11-24 23:54:25,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:54:25,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:54:25,883 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:54:25,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784517490] [2023-11-24 23:54:25,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784517490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:54:25,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:54:25,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:54:25,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628161252] [2023-11-24 23:54:25,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:54:25,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:54:25,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:54:25,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:54:25,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:54:25,886 INFO L87 Difference]: Start difference. First operand 1540 states and 2168 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:54:28,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:54:28,724 INFO L93 Difference]: Finished difference Result 1704 states and 2090 transitions. [2023-11-24 23:54:28,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:54:28,725 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-24 23:54:28,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:54:28,732 INFO L225 Difference]: With dead ends: 1704 [2023-11-24 23:54:28,732 INFO L226 Difference]: Without dead ends: 1704 [2023-11-24 23:54:28,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:54:28,734 INFO L413 NwaCegarLoop]: 1125 mSDtfsCounter, 426 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 3177 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:54:28,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 3177 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-24 23:54:28,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2023-11-24 23:54:28,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1273. [2023-11-24 23:54:28,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1273 states, 709 states have (on average 2.1763046544428772) internal successors, (1543), 1250 states have internal predecessors, (1543), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-24 23:54:28,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1583 transitions. [2023-11-24 23:54:28,767 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1583 transitions. Word has length 15 [2023-11-24 23:54:28,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:54:28,768 INFO L495 AbstractCegarLoop]: Abstraction has 1273 states and 1583 transitions. [2023-11-24 23:54:28,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:54:28,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1583 transitions. [2023-11-24 23:54:28,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:54:28,769 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:28,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:28,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-24 23:54:28,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:54:28,973 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-24 23:54:28,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:28,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1442573483, now seen corresponding path program 1 times [2023-11-24 23:54:28,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:54:28,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980370986] [2023-11-24 23:54:28,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:28,974 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 [2023-11-24 23:54:28,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:54:28,975 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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) [2023-11-24 23:54:28,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4343bfb9-0b1f-44d2-a5d6-469ba7de85b9/bin/utaipan-verify-SwPr7d2a91/mathsat -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