./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX --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 cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:52:06,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:52:06,899 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:52:06,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:52:06,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:52:06,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:52:06,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:52:06,960 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:52:06,961 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:52:06,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:52:06,964 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:52:06,967 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:52:06,967 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:52:06,969 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:52:06,970 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:52:06,970 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:52:06,971 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:52:06,971 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:52:06,971 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:52:06,972 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:52:06,972 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:52:06,973 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:52:06,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:52:06,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:52:06,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:52:06,976 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:52:06,976 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:52:06,977 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:52:06,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:52:06,978 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:52:06,979 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:52:06,979 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:52:06,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:52:06,980 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:52:06,980 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:52:06,980 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:52:06,981 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:52:06,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:52:06,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:52:06,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:06,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:52:06,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:52:06,983 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:52:06,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:52:06,984 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:52:06,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:52:06,984 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_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 [2023-11-12 00:52:07,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:52:07,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:52:07,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:52:07,341 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:52:07,343 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:52:07,344 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2023-11-12 00:52:10,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:52:10,954 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:52:10,955 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2023-11-12 00:52:10,990 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/data/1f7600f86/94a3e8c8d3bb4b248e543c0517c4a4bb/FLAG1273e84b8 [2023-11-12 00:52:11,009 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/data/1f7600f86/94a3e8c8d3bb4b248e543c0517c4a4bb [2023-11-12 00:52:11,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:52:11,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:52:11,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:11,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:52:11,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:52:11,029 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:11" (1/1) ... [2023-11-12 00:52:11,030 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19d0cca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:11, skipping insertion in model container [2023-11-12 00:52:11,031 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:11" (1/1) ... [2023-11-12 00:52:11,132 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:12,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:12,108 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) [2023-11-12 00:52:12,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@71153662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:12, skipping insertion in model container [2023-11-12 00:52:12,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:12,110 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:52:12,111 INFO L158 Benchmark]: Toolchain (without parser) took 1092.20ms. Allocated memory is still 195.0MB. Free memory was 146.3MB in the beginning and 112.8MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-12 00:52:12,112 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 138.4MB. Free memory is still 85.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:52:12,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1087.12ms. Allocated memory is still 195.0MB. Free memory was 145.6MB in the beginning and 112.8MB in the end (delta: 32.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-12 00:52:12,114 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 138.4MB. Free memory is still 85.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1087.12ms. Allocated memory is still 195.0MB. Free memory was 145.6MB in the beginning and 112.8MB in the end (delta: 32.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2221]: 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_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX --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 cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:52:14,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:52:14,785 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:52:14,796 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:52:14,797 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:52:14,841 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:52:14,842 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:52:14,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:52:14,844 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:52:14,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:52:14,849 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:52:14,850 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:52:14,850 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:52:14,852 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:52:14,852 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:52:14,853 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:52:14,853 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:52:14,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:52:14,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:52:14,856 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:52:14,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:52:14,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:52:14,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:52:14,858 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:52:14,858 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:52:14,858 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:52:14,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:52:14,859 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:52:14,860 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:52:14,860 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:52:14,862 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:52:14,862 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:52:14,862 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:52:14,863 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:52:14,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:52:14,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:52:14,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:14,864 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:52:14,865 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:52:14,865 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:52:14,865 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:52:14,866 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:52:14,866 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:52:14,866 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_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 [2023-11-12 00:52:15,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:52:15,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:52:15,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:52:15,352 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:52:15,353 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:52:15,355 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2023-11-12 00:52:18,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:52:18,963 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:52:18,963 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2023-11-12 00:52:18,988 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/data/d05f86cbc/413fa6cb97d44178bbcc4949bb66e7c6/FLAG242d66532 [2023-11-12 00:52:19,004 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/data/d05f86cbc/413fa6cb97d44178bbcc4949bb66e7c6 [2023-11-12 00:52:19,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:52:19,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:52:19,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:19,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:52:19,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:52:19,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d4708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19, skipping insertion in model container [2023-11-12 00:52:19,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,153 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:20,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:20,203 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:52:20,221 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:20,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:20,445 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:52:20,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:20,624 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:52:20,632 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:52:20,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:20 WrapperNode [2023-11-12 00:52:20,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:20,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:20,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:52:20,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:52:20,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:20" (1/1) ... [2023-11-12 00:52:20,731 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:20" (1/1) ... [2023-11-12 00:52:20,895 INFO L138 Inliner]: procedures = 180, calls = 783, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3040 [2023-11-12 00:52:20,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:20,896 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:52:20,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:52:20,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:52:20,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:20" (1/1) ... [2023-11-12 00:52:20,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:20" (1/1) ... [2023-11-12 00:52:20,928 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:20" (1/1) ... [2023-11-12 00:52:20,928 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:20" (1/1) ... [2023-11-12 00:52:21,023 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:20" (1/1) ... [2023-11-12 00:52:21,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:20" (1/1) ... [2023-11-12 00:52:21,068 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:20" (1/1) ... [2023-11-12 00:52:21,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:20" (1/1) ... [2023-11-12 00:52:21,094 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:52:21,095 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:52:21,095 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:52:21,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:52:21,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:20" (1/1) ... [2023-11-12 00:52:21,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:21,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:52:21,127 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:52:21,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:52:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-12 00:52:21,168 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-12 00:52:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-12 00:52:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:52:21,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:52:21,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:52:21,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:52:21,169 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:52:21,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:52:21,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:52:21,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:52:21,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:52:21,172 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:52:21,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:52:21,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:52:21,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:52:21,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:52:21,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:52:21,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:52:21,421 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:52:21,423 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:52:21,461 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 00:52:28,436 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:52:28,464 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:52:28,464 INFO L302 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-12 00:52:28,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:28 BoogieIcfgContainer [2023-11-12 00:52:28,470 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:52:28,473 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:52:28,473 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:52:28,476 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:52:28,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:52:19" (1/3) ... [2023-11-12 00:52:28,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b63f6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:28, skipping insertion in model container [2023-11-12 00:52:28,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:20" (2/3) ... [2023-11-12 00:52:28,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b63f6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:28, skipping insertion in model container [2023-11-12 00:52:28,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:28" (3/3) ... [2023-11-12 00:52:28,479 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test9-2.i [2023-11-12 00:52:28,499 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:52:28,500 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 535 error locations. [2023-11-12 00:52:28,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:52:28,615 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;@2f7578c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:52:28,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 535 error locations. [2023-11-12 00:52:28,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 2082 states, 1041 states have (on average 2.112391930835735) internal successors, (2199), 2075 states have internal predecessors, (2199), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2023-11-12 00:52:28,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 00:52:28,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:28,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 00:52:28,640 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-12 00:52:28,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:28,645 INFO L85 PathProgramCache]: Analyzing trace with hash 47731, now seen corresponding path program 1 times [2023-11-12 00:52:28,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:52:28,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701218935] [2023-11-12 00:52:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:28,658 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 [2023-11-12 00:52:28,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:52:28,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:52:28,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:52:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:28,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:52:28,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:52:28,905 INFO L351 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 [2023-11-12 00:52:28,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:52:28,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:52:28,943 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:52:28,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701218935] [2023-11-12 00:52:28,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1701218935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:28,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:28,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:52:28,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074781503] [2023-11-12 00:52:28,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:28,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:52:28,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:52:28,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:52:28,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:28,991 INFO L87 Difference]: Start difference. First operand has 2082 states, 1041 states have (on average 2.112391930835735) internal successors, (2199), 2075 states have internal predecessors, (2199), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:52:32,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:32,683 INFO L93 Difference]: Finished difference Result 2249 states and 3315 transitions. [2023-11-12 00:52:32,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:52:32,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-12 00:52:32,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:32,730 INFO L225 Difference]: With dead ends: 2249 [2023-11-12 00:52:32,730 INFO L226 Difference]: Without dead ends: 2247 [2023-11-12 00:52:32,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:32,736 INFO L413 NwaCegarLoop]: 2646 mSDtfsCounter, 1991 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2494 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:32,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2494 Valid, 2802 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-12 00:52:32,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2023-11-12 00:52:33,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 2067. [2023-11-12 00:52:33,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2067 states, 1043 states have (on average 2.0297219558964525) internal successors, (2117), 2060 states have internal predecessors, (2117), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-12 00:52:33,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2067 states to 2067 states and 3125 transitions. [2023-11-12 00:52:33,214 INFO L78 Accepts]: Start accepts. Automaton has 2067 states and 3125 transitions. Word has length 3 [2023-11-12 00:52:33,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:33,215 INFO L495 AbstractCegarLoop]: Abstraction has 2067 states and 3125 transitions. [2023-11-12 00:52:33,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:52:33,215 INFO L276 IsEmpty]: Start isEmpty. Operand 2067 states and 3125 transitions. [2023-11-12 00:52:33,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 00:52:33,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:33,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 00:52:33,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:52:33,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:52:33,429 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-12 00:52:33,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:33,430 INFO L85 PathProgramCache]: Analyzing trace with hash 47732, now seen corresponding path program 1 times [2023-11-12 00:52:33,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:52:33,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707957625] [2023-11-12 00:52:33,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:33,431 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 [2023-11-12 00:52:33,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:52:33,433 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:52:33,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:52:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:33,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:52:33,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:52:33,605 INFO L351 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 [2023-11-12 00:52:33,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:52:33,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:52:33,625 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:52:33,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707957625] [2023-11-12 00:52:33,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707957625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:33,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:33,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:52:33,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744600656] [2023-11-12 00:52:33,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:33,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:52:33,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:52:33,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:52:33,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:33,636 INFO L87 Difference]: Start difference. First operand 2067 states and 3125 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:52:38,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:38,910 INFO L93 Difference]: Finished difference Result 3479 states and 5570 transitions. [2023-11-12 00:52:38,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:52:38,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-12 00:52:38,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:38,943 INFO L225 Difference]: With dead ends: 3479 [2023-11-12 00:52:38,944 INFO L226 Difference]: Without dead ends: 3479 [2023-11-12 00:52:38,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:38,948 INFO L413 NwaCegarLoop]: 3030 mSDtfsCounter, 1444 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 5121 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:38,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1944 Valid, 5121 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-12 00:52:38,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2023-11-12 00:52:39,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3192. [2023-11-12 00:52:39,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 1669 states have (on average 2.005991611743559) internal successors, (3348), 3185 states have internal predecessors, (3348), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-12 00:52:39,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 5356 transitions. [2023-11-12 00:52:39,449 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 5356 transitions. Word has length 3 [2023-11-12 00:52:39,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:39,449 INFO L495 AbstractCegarLoop]: Abstraction has 3192 states and 5356 transitions. [2023-11-12 00:52:39,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:52:39,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 5356 transitions. [2023-11-12 00:52:39,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:52:39,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:39,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:39,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:52:39,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:52:39,666 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-12 00:52:39,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:39,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1130822653, now seen corresponding path program 1 times [2023-11-12 00:52:39,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:52:39,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18695170] [2023-11-12 00:52:39,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:39,672 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 [2023-11-12 00:52:39,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:52:39,677 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:52:39,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:52:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:39,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 00:52:39,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:52:39,872 INFO L351 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 [2023-11-12 00:52:39,881 INFO L351 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 [2023-11-12 00:52:39,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:52:39,977 INFO L351 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 [2023-11-12 00:52:40,000 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-12 00:52:40,001 INFO L351 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 [2023-11-12 00:52:40,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:52:40,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:52:40,027 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:52:40,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18695170] [2023-11-12 00:52:40,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18695170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:40,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:40,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:52:40,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112110529] [2023-11-12 00:52:40,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:40,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:52:40,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:52:40,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:52:40,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:52:40,033 INFO L87 Difference]: Start difference. First operand 3192 states and 5356 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:52:46,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:46,755 INFO L93 Difference]: Finished difference Result 3361 states and 5533 transitions. [2023-11-12 00:52:46,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:52:46,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-12 00:52:46,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:46,782 INFO L225 Difference]: With dead ends: 3361 [2023-11-12 00:52:46,783 INFO L226 Difference]: Without dead ends: 3361 [2023-11-12 00:52:46,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:52:46,784 INFO L413 NwaCegarLoop]: 2373 mSDtfsCounter, 4239 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4742 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:46,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4742 Valid, 2461 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-12 00:52:46,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2023-11-12 00:52:47,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 2056. [2023-11-12 00:52:47,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 1043 states have (on average 2.0182166826462127) internal successors, (2105), 2049 states have internal predecessors, (2105), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-12 00:52:47,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 3113 transitions. [2023-11-12 00:52:47,065 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 3113 transitions. Word has length 7 [2023-11-12 00:52:47,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:47,066 INFO L495 AbstractCegarLoop]: Abstraction has 2056 states and 3113 transitions. [2023-11-12 00:52:47,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:52:47,066 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 3113 transitions. [2023-11-12 00:52:47,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:52:47,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:47,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:47,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:52:47,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:52:47,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-12 00:52:47,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:47,280 INFO L85 PathProgramCache]: Analyzing trace with hash 695763858, now seen corresponding path program 1 times [2023-11-12 00:52:47,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:52:47,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632875944] [2023-11-12 00:52:47,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:47,281 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 [2023-11-12 00:52:47,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:52:47,282 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:52:47,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:52:47,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:47,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:52:47,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:52:47,459 INFO L351 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 [2023-11-12 00:52:47,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:52:47,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:52:47,479 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:52:47,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632875944] [2023-11-12 00:52:47,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632875944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:47,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:47,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:52:47,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574894616] [2023-11-12 00:52:47,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:47,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:52:47,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:52:47,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:52:47,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:47,482 INFO L87 Difference]: Start difference. First operand 2056 states and 3113 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:52:50,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:50,805 INFO L93 Difference]: Finished difference Result 3224 states and 5303 transitions. [2023-11-12 00:52:50,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:52:50,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 00:52:50,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:50,831 INFO L225 Difference]: With dead ends: 3224 [2023-11-12 00:52:50,832 INFO L226 Difference]: Without dead ends: 3224 [2023-11-12 00:52:50,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:50,835 INFO L413 NwaCegarLoop]: 4773 mSDtfsCounter, 1808 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 1130 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2311 SdHoareTripleChecker+Valid, 7040 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:50,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2311 Valid, 7040 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1130 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-12 00:52:50,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3224 states. [2023-11-12 00:52:51,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3224 to 2009. [2023-11-12 00:52:51,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2009 states, 1043 states have (on average 1.9731543624161074) internal successors, (2058), 2002 states have internal predecessors, (2058), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-12 00:52:51,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 3066 transitions. [2023-11-12 00:52:51,247 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 3066 transitions. Word has length 8 [2023-11-12 00:52:51,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:51,248 INFO L495 AbstractCegarLoop]: Abstraction has 2009 states and 3066 transitions. [2023-11-12 00:52:51,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:52:51,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 3066 transitions. [2023-11-12 00:52:51,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:52:51,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:51,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:51,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:52:51,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:52:51,461 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-12 00:52:51,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:51,461 INFO L85 PathProgramCache]: Analyzing trace with hash 695763859, now seen corresponding path program 1 times [2023-11-12 00:52:51,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:52:51,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631629838] [2023-11-12 00:52:51,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:51,462 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 [2023-11-12 00:52:51,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:52:51,463 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:52:51,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:52:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:51,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:52:51,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:52:51,652 INFO L351 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 [2023-11-12 00:52:51,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:52:51,695 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:52:51,696 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:52:51,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631629838] [2023-11-12 00:52:51,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631629838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:51,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:51,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:52:51,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512608680] [2023-11-12 00:52:51,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:51,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:52:51,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:52:51,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:52:51,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:51,703 INFO L87 Difference]: Start difference. First operand 2009 states and 3066 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:52:56,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:56,167 INFO L93 Difference]: Finished difference Result 3292 states and 5374 transitions. [2023-11-12 00:52:56,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:52:56,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 00:52:56,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:56,191 INFO L225 Difference]: With dead ends: 3292 [2023-11-12 00:52:56,191 INFO L226 Difference]: Without dead ends: 3292 [2023-11-12 00:52:56,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:56,192 INFO L413 NwaCegarLoop]: 4952 mSDtfsCounter, 1495 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 7383 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:56,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1995 Valid, 7383 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-12 00:52:56,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2023-11-12 00:52:56,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 2031. [2023-11-12 00:52:56,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 1075 states have (on average 1.9665116279069768) internal successors, (2114), 2024 states have internal predecessors, (2114), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-12 00:52:56,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 3122 transitions. [2023-11-12 00:52:56,506 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 3122 transitions. Word has length 8 [2023-11-12 00:52:56,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:56,506 INFO L495 AbstractCegarLoop]: Abstraction has 2031 states and 3122 transitions. [2023-11-12 00:52:56,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:52:56,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 3122 transitions. [2023-11-12 00:52:56,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 00:52:56,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:56,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:56,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-12 00:52:56,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:52:56,719 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr428REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-12 00:52:56,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:56,719 INFO L85 PathProgramCache]: Analyzing trace with hash -745981022, now seen corresponding path program 1 times [2023-11-12 00:52:56,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:52:56,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718484483] [2023-11-12 00:52:56,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:56,720 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 [2023-11-12 00:52:56,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:52:56,722 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:52:56,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbfeb8f-62fa-469a-83ca-5486b1098baf/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:52:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:56,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:52:56,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:52:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:52:56,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:52:56,943 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:52:56,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718484483] [2023-11-12 00:52:56,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718484483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:56,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:56,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:52:56,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174557863] [2023-11-12 00:52:56,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:56,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:52:56,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:52:56,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:52:56,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:56,946 INFO L87 Difference]: Start difference. First operand 2031 states and 3122 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:52:57,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:57,375 INFO L93 Difference]: Finished difference Result 3502 states and 5629 transitions. [2023-11-12 00:52:57,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:52:57,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-12 00:52:57,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:57,399 INFO L225 Difference]: With dead ends: 3502 [2023-11-12 00:52:57,400 INFO L226 Difference]: Without dead ends: 3502 [2023-11-12 00:52:57,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:57,401 INFO L413 NwaCegarLoop]: 3116 mSDtfsCounter, 1564 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 6012 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:57,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 6012 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 00:52:57,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2023-11-12 00:52:57,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 3208. [2023-11-12 00:52:57,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 1752 states have (on average 1.9486301369863013) internal successors, (3414), 3201 states have internal predecessors, (3414), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003)