./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30e01a73 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_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire --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 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:08:08,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:08:08,591 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-23 21:08:08,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:08:08,598 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:08:08,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:08:08,647 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:08:08,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:08:08,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:08:08,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:08:08,657 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:08:08,658 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:08:08,659 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:08:08,661 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:08:08,661 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:08:08,662 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:08:08,662 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:08:08,663 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:08:08,663 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:08:08,664 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:08:08,664 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:08:08,665 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:08:08,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:08:08,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:08:08,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:08:08,668 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:08:08,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:08:08,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:08:08,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:08:08,669 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 21:08:08,671 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 21:08:08,672 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 21:08:08,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:08:08,672 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:08:08,672 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:08:08,673 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:08:08,673 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:08:08,673 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:08:08,674 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:08:08,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:08:08,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:08,675 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:08:08,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:08:08,675 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:08:08,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:08:08,676 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:08:08,676 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:08:08,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:08:08,677 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_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2023-11-23 21:08:08,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:08:09,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:08:09,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:08:09,025 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:08:09,026 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:08:09,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i [2023-11-23 21:08:12,283 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:08:12,751 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:08:12,752 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i [2023-11-23 21:08:12,787 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/data/b3b5aa830/be476bbd5da24a2b93dd5375c3132add/FLAGb24b96b95 [2023-11-23 21:08:12,808 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/data/b3b5aa830/be476bbd5da24a2b93dd5375c3132add [2023-11-23 21:08:12,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:08:12,820 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:08:12,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:12,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:08:12,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:08:12,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,836 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e9b87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:12, skipping insertion in model container [2023-11-23 21:08:12,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:12" (1/1) ... [2023-11-23 21:08:12,924 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:08:13,203 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:08:13,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:13,629 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) [2023-11-23 21:08:13,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@54b9de70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:13, skipping insertion in model container [2023-11-23 21:08:13,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:13,630 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-23 21:08:13,632 INFO L158 Benchmark]: Toolchain (without parser) took 812.11ms. Allocated memory is still 167.8MB. Free memory was 119.6MB in the beginning and 100.1MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 21:08:13,633 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 125.8MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:08:13,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 805.66ms. Allocated memory is still 167.8MB. Free memory was 119.6MB in the beginning and 100.1MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 21:08:13,636 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 125.8MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 805.66ms. Allocated memory is still 167.8MB. Free memory was 119.6MB in the beginning and 100.1MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 739]: 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_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire --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 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:08:16,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:08:16,361 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-23 21:08:16,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:08:16,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:08:16,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:08:16,431 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:08:16,432 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:08:16,433 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:08:16,439 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:08:16,439 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:08:16,440 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:08:16,440 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:08:16,442 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:08:16,443 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:08:16,443 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:08:16,444 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:08:16,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:08:16,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:08:16,446 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:08:16,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:08:16,447 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:08:16,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:08:16,448 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 21:08:16,448 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 21:08:16,449 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 21:08:16,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:08:16,450 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:08:16,450 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:08:16,450 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:08:16,452 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:08:16,452 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:08:16,453 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:08:16,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:08:16,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:08:16,453 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:08:16,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:08:16,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:16,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:08:16,456 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:08:16,456 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:08:16,456 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:08:16,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:08:16,457 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:08:16,457 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:08:16,458 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_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2023-11-23 21:08:16,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:08:16,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:08:16,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:08:16,891 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:08:16,891 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:08:16,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i [2023-11-23 21:08:20,207 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:08:20,672 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:08:20,672 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i [2023-11-23 21:08:20,708 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/data/45731b0cf/a6c19bb47c9a46ea8f96e5ce36d63b07/FLAGd5bc0d1b0 [2023-11-23 21:08:20,726 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/data/45731b0cf/a6c19bb47c9a46ea8f96e5ce36d63b07 [2023-11-23 21:08:20,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:08:20,733 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:08:20,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:20,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:08:20,742 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:08:20,743 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:20" (1/1) ... [2023-11-23 21:08:20,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fad1f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:20, skipping insertion in model container [2023-11-23 21:08:20,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:20" (1/1) ... [2023-11-23 21:08:20,831 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:08:21,188 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:08:21,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:21,613 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-23 21:08:21,629 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:08:21,637 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:08:21,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:21,727 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:08:21,744 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:08:21,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:21,876 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:08:21,876 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:08:21,885 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:08:21,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:21 WrapperNode [2023-11-23 21:08:21,885 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:21,887 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:21,887 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:08:21,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:08:21,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:21" (1/1) ... [2023-11-23 21:08:21,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:21" (1/1) ... [2023-11-23 21:08:22,051 INFO L138 Inliner]: procedures = 181, calls = 283, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1031 [2023-11-23 21:08:22,051 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:22,052 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:08:22,052 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:08:22,052 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:08:22,062 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:21" (1/1) ... [2023-11-23 21:08:22,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:21" (1/1) ... [2023-11-23 21:08:22,071 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:21" (1/1) ... [2023-11-23 21:08:22,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:21" (1/1) ... [2023-11-23 21:08:22,116 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:21" (1/1) ... [2023-11-23 21:08:22,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:21" (1/1) ... [2023-11-23 21:08:22,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:21" (1/1) ... [2023-11-23 21:08:22,176 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:21" (1/1) ... [2023-11-23 21:08:22,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:08:22,198 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:08:22,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:08:22,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:08:22,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:21" (1/1) ... [2023-11-23 21:08:22,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:22,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:22,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:08:22,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:08:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-23 21:08:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 21:08:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:08:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:08:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:08:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:08:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:08:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:08:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:08:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:08:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:08:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:08:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 21:08:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:08:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:08:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:08:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:08:22,566 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:08:22,569 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:08:22,573 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 21:08:27,559 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:08:27,816 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:08:27,817 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-23 21:08:27,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:27 BoogieIcfgContainer [2023-11-23 21:08:27,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:08:27,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:08:27,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:08:27,825 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:08:27,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:08:20" (1/3) ... [2023-11-23 21:08:27,826 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b3079d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:27, skipping insertion in model container [2023-11-23 21:08:27,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:21" (2/3) ... [2023-11-23 21:08:27,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b3079d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:27, skipping insertion in model container [2023-11-23 21:08:27,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:27" (3/3) ... [2023-11-23 21:08:27,830 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test3-1.i [2023-11-23 21:08:27,851 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:08:27,851 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 531 error locations. [2023-11-23 21:08:27,930 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:08:27,938 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;@2aac5754, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:08:27,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 531 error locations. [2023-11-23 21:08:27,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 964 states, 428 states have (on average 2.5257009345794392) internal successors, (1081), 957 states have internal predecessors, (1081), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:08:27,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-23 21:08:27,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:27,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-23 21:08:27,954 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-23 21:08:27,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:27,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1651512, now seen corresponding path program 1 times [2023-11-23 21:08:27,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:27,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660072402] [2023-11-23 21:08:27,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:27,979 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 [2023-11-23 21:08:27,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:27,986 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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) [2023-11-23 21:08:28,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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 [2023-11-23 21:08:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:28,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:08:28,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:28,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-23 21:08:28,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:28,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:28,273 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:28,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660072402] [2023-11-23 21:08:28,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660072402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:28,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:28,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:08:28,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003454147] [2023-11-23 21:08:28,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:28,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:28,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:28,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:28,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:28,319 INFO L87 Difference]: Start difference. First operand has 964 states, 428 states have (on average 2.5257009345794392) internal successors, (1081), 957 states have internal predecessors, (1081), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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) [2023-11-23 21:08:30,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:30,879 INFO L93 Difference]: Finished difference Result 964 states and 1022 transitions. [2023-11-23 21:08:30,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:30,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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 [2023-11-23 21:08:30,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:30,918 INFO L225 Difference]: With dead ends: 964 [2023-11-23 21:08:30,922 INFO L226 Difference]: Without dead ends: 963 [2023-11-23 21:08:30,924 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 [2023-11-23 21:08:30,930 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 889 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:30,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 576 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 21:08:30,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2023-11-23 21:08:31,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 953. [2023-11-23 21:08:31,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 432 states have (on average 2.321759259259259) internal successors, (1003), 945 states have internal predecessors, (1003), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:08:31,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1013 transitions. [2023-11-23 21:08:31,050 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1013 transitions. Word has length 3 [2023-11-23 21:08:31,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:31,050 INFO L495 AbstractCegarLoop]: Abstraction has 953 states and 1013 transitions. [2023-11-23 21:08:31,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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) [2023-11-23 21:08:31,051 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1013 transitions. [2023-11-23 21:08:31,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-23 21:08:31,051 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:31,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-23 21:08:31,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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 [2023-11-23 21:08:31,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:08:31,255 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-23 21:08:31,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:31,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1651513, now seen corresponding path program 1 times [2023-11-23 21:08:31,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:31,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159106809] [2023-11-23 21:08:31,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:31,257 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 [2023-11-23 21:08:31,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:31,259 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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) [2023-11-23 21:08:31,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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 [2023-11-23 21:08:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:31,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:08:31,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:31,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-23 21:08:31,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:31,435 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:31,435 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:31,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159106809] [2023-11-23 21:08:31,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159106809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:31,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:31,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:08:31,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216261096] [2023-11-23 21:08:31,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:31,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:31,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:31,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:31,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:31,440 INFO L87 Difference]: Start difference. First operand 953 states and 1013 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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) [2023-11-23 21:08:35,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:35,775 INFO L93 Difference]: Finished difference Result 1317 states and 1410 transitions. [2023-11-23 21:08:35,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:35,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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 [2023-11-23 21:08:35,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:35,786 INFO L225 Difference]: With dead ends: 1317 [2023-11-23 21:08:35,786 INFO L226 Difference]: Without dead ends: 1317 [2023-11-23 21:08:35,787 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 [2023-11-23 21:08:35,788 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 392 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:35,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1227 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-23 21:08:35,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2023-11-23 21:08:35,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1124. [2023-11-23 21:08:35,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 603 states have (on average 2.296849087893864) internal successors, (1385), 1115 states have internal predecessors, (1385), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:08:35,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1397 transitions. [2023-11-23 21:08:35,846 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1397 transitions. Word has length 3 [2023-11-23 21:08:35,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:35,847 INFO L495 AbstractCegarLoop]: Abstraction has 1124 states and 1397 transitions. [2023-11-23 21:08:35,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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) [2023-11-23 21:08:35,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1397 transitions. [2023-11-23 21:08:35,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-23 21:08:35,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:35,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-23 21:08:35,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-23 21:08:36,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:08:36,051 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr529ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-23 21:08:36,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:36,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1653087, now seen corresponding path program 1 times [2023-11-23 21:08:36,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:36,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886629970] [2023-11-23 21:08:36,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:36,053 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 [2023-11-23 21:08:36,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:36,055 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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) [2023-11-23 21:08:36,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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 [2023-11-23 21:08:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:36,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 21:08:36,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:36,292 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_53| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_53| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_53|)))) is different from true [2023-11-23 21:08:36,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:36,293 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:36,294 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:36,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886629970] [2023-11-23 21:08:36,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886629970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:36,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:36,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:08:36,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106227976] [2023-11-23 21:08:36,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:36,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:08:36,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:36,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:08:36,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-23 21:08:36,299 INFO L87 Difference]: Start difference. First operand 1124 states and 1397 transitions. Second operand has 4 states, 3 states have (on average 1.0) 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) [2023-11-23 21:08:39,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:39,750 INFO L93 Difference]: Finished difference Result 1476 states and 1780 transitions. [2023-11-23 21:08:39,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:08:39,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) 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 [2023-11-23 21:08:39,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:39,763 INFO L225 Difference]: With dead ends: 1476 [2023-11-23 21:08:39,764 INFO L226 Difference]: Without dead ends: 1475 [2023-11-23 21:08:39,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-23 21:08:39,766 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 381 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 2172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1387 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:39,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1226 Invalid, 2172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 785 Invalid, 0 Unknown, 1387 Unchecked, 3.4s Time] [2023-11-23 21:08:39,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2023-11-23 21:08:39,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1124. [2023-11-23 21:08:39,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 603 states have (on average 2.295190713101161) internal successors, (1384), 1115 states have internal predecessors, (1384), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:08:39,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1396 transitions. [2023-11-23 21:08:39,817 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1396 transitions. Word has length 3 [2023-11-23 21:08:39,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:39,817 INFO L495 AbstractCegarLoop]: Abstraction has 1124 states and 1396 transitions. [2023-11-23 21:08:39,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) 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) [2023-11-23 21:08:39,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1396 transitions. [2023-11-23 21:08:39,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 21:08:39,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:39,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:39,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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 [2023-11-23 21:08:40,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:08:40,022 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-23 21:08:40,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:40,024 INFO L85 PathProgramCache]: Analyzing trace with hash 492415298, now seen corresponding path program 1 times [2023-11-23 21:08:40,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:40,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612843129] [2023-11-23 21:08:40,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:40,031 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 [2023-11-23 21:08:40,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:40,032 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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) [2023-11-23 21:08:40,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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 [2023-11-23 21:08:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:40,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:08:40,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:40,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-23 21:08:40,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-23 21:08:40,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:08:40,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-23 21:08:40,426 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-23 21:08:40,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-23 21:08:40,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:40,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:40,467 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:40,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612843129] [2023-11-23 21:08:40,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612843129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:40,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:40,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:08:40,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466916989] [2023-11-23 21:08:40,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:40,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:08:40,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:40,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:08:40,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:08:40,470 INFO L87 Difference]: Start difference. First operand 1124 states and 1396 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:08:44,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:44,469 INFO L93 Difference]: Finished difference Result 1127 states and 1400 transitions. [2023-11-23 21:08:44,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:08:44,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-23 21:08:44,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:44,479 INFO L225 Difference]: With dead ends: 1127 [2023-11-23 21:08:44,480 INFO L226 Difference]: Without dead ends: 1127 [2023-11-23 21:08:44,480 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 [2023-11-23 21:08:44,482 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 973 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:44,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 298 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-23 21:08:44,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2023-11-23 21:08:44,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 942. [2023-11-23 21:08:44,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 432 states have (on average 2.2893518518518516) internal successors, (989), 934 states have internal predecessors, (989), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:08:44,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 999 transitions. [2023-11-23 21:08:44,517 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 999 transitions. Word has length 7 [2023-11-23 21:08:44,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:44,518 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 999 transitions. [2023-11-23 21:08:44,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:08:44,519 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 999 transitions. [2023-11-23 21:08:44,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 21:08:44,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:44,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:44,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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 [2023-11-23 21:08:44,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:08:44,725 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-23 21:08:44,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:44,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1914994967, now seen corresponding path program 1 times [2023-11-23 21:08:44,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:44,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268303230] [2023-11-23 21:08:44,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:44,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:08:44,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:44,729 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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) [2023-11-23 21:08:44,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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 [2023-11-23 21:08:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:44,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:08:44,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:44,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-23 21:08:44,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:44,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:44,925 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:44,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268303230] [2023-11-23 21:08:44,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268303230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:44,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:44,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:08:44,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857221670] [2023-11-23 21:08:44,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:44,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:44,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:44,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:44,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:44,948 INFO L87 Difference]: Start difference. First operand 942 states and 999 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) [2023-11-23 21:08:48,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:48,061 INFO L93 Difference]: Finished difference Result 1239 states and 1327 transitions. [2023-11-23 21:08:48,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:48,064 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 [2023-11-23 21:08:48,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:48,073 INFO L225 Difference]: With dead ends: 1239 [2023-11-23 21:08:48,073 INFO L226 Difference]: Without dead ends: 1239 [2023-11-23 21:08:48,074 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 [2023-11-23 21:08:48,075 INFO L413 NwaCegarLoop]: 773 mSDtfsCounter, 885 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:48,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 988 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-23 21:08:48,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2023-11-23 21:08:48,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 894. [2023-11-23 21:08:48,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 432 states have (on average 2.178240740740741) internal successors, (941), 886 states have internal predecessors, (941), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:08:48,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 951 transitions. [2023-11-23 21:08:48,112 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 951 transitions. Word has length 8 [2023-11-23 21:08:48,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:48,113 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 951 transitions. [2023-11-23 21:08:48,113 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) [2023-11-23 21:08:48,113 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 951 transitions. [2023-11-23 21:08:48,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 21:08:48,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:48,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:48,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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 [2023-11-23 21:08:48,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:08:48,318 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-23 21:08:48,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:48,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1914994966, now seen corresponding path program 1 times [2023-11-23 21:08:48,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:48,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482291941] [2023-11-23 21:08:48,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:48,319 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 [2023-11-23 21:08:48,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:48,321 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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) [2023-11-23 21:08:48,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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 [2023-11-23 21:08:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:48,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:08:48,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:48,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-23 21:08:48,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:48,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:48,576 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:48,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482291941] [2023-11-23 21:08:48,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482291941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:48,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:48,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:08:48,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924940434] [2023-11-23 21:08:48,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:48,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:48,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:48,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:48,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:48,579 INFO L87 Difference]: Start difference. First operand 894 states and 951 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) [2023-11-23 21:08:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:52,849 INFO L93 Difference]: Finished difference Result 1308 states and 1399 transitions. [2023-11-23 21:08:52,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:52,850 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 [2023-11-23 21:08:52,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:52,859 INFO L225 Difference]: With dead ends: 1308 [2023-11-23 21:08:52,860 INFO L226 Difference]: Without dead ends: 1308 [2023-11-23 21:08:52,860 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 [2023-11-23 21:08:52,861 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 613 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:52,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1293 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-23 21:08:52,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2023-11-23 21:08:52,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 907. [2023-11-23 21:08:52,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 455 states have (on average 2.1714285714285713) internal successors, (988), 899 states have internal predecessors, (988), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:08:52,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 998 transitions. [2023-11-23 21:08:52,915 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 998 transitions. Word has length 8 [2023-11-23 21:08:52,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:52,915 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 998 transitions. [2023-11-23 21:08:52,916 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) [2023-11-23 21:08:52,916 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 998 transitions. [2023-11-23 21:08:52,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 21:08:52,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:52,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:52,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:53,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:08:53,121 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr525REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-23 21:08:53,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:53,122 INFO L85 PathProgramCache]: Analyzing trace with hash -302105909, now seen corresponding path program 1 times [2023-11-23 21:08:53,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:53,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983831938] [2023-11-23 21:08:53,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:53,123 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 [2023-11-23 21:08:53,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:53,125 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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) [2023-11-23 21:08:53,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-23 21:08:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:53,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:08:53,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:53,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:53,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:53,443 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:53,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983831938] [2023-11-23 21:08:53,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983831938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:53,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:53,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:08:53,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900928205] [2023-11-23 21:08:53,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:53,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:08:53,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:53,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:08:53,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:08:53,448 INFO L87 Difference]: Start difference. First operand 907 states and 998 transitions. Second operand has 4 states, 4 states have (on average 2.75) 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) [2023-11-23 21:08:55,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:55,971 INFO L93 Difference]: Finished difference Result 1316 states and 1442 transitions. [2023-11-23 21:08:55,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:08:55,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 [2023-11-23 21:08:55,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:55,982 INFO L225 Difference]: With dead ends: 1316 [2023-11-23 21:08:55,982 INFO L226 Difference]: Without dead ends: 1316 [2023-11-23 21:08:55,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:08:55,984 INFO L413 NwaCegarLoop]: 877 mSDtfsCounter, 497 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:55,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 2361 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-23 21:08:55,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2023-11-23 21:08:56,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1109. [2023-11-23 21:08:56,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 656 states have (on average 2.1402439024390243) internal successors, (1404), 1100 states have internal predecessors, (1404), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:08:56,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1416 transitions. [2023-11-23 21:08:56,040 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1416 transitions. Word has length 11 [2023-11-23 21:08:56,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:56,041 INFO L495 AbstractCegarLoop]: Abstraction has 1109 states and 1416 transitions. [2023-11-23 21:08:56,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-23 21:08:56,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1416 transitions. [2023-11-23 21:08:56,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 21:08:56,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:56,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:56,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:56,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:08:56,246 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr529ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-23 21:08:56,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:56,247 INFO L85 PathProgramCache]: Analyzing trace with hash -775348482, now seen corresponding path program 1 times [2023-11-23 21:08:56,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:56,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140827482] [2023-11-23 21:08:56,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:56,247 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 [2023-11-23 21:08:56,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:56,249 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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) [2023-11-23 21:08:56,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-23 21:08:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:56,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 21:08:56,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:08:56,611 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_54| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_54|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_54| (_ bv0 1)) |c_#valid|))) is different from true [2023-11-23 21:08:56,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:08:56,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:08:56,612 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:08:56,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140827482] [2023-11-23 21:08:56,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140827482] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:56,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:56,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:08:56,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775477417] [2023-11-23 21:08:56,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:56,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:08:56,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:08:56,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:08:56,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-23 21:08:56,615 INFO L87 Difference]: Start difference. First operand 1109 states and 1416 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:08:59,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:59,638 INFO L93 Difference]: Finished difference Result 1429 states and 1819 transitions. [2023-11-23 21:08:59,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:08:59,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-23 21:08:59,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:59,648 INFO L225 Difference]: With dead ends: 1429 [2023-11-23 21:08:59,648 INFO L226 Difference]: Without dead ends: 1425 [2023-11-23 21:08:59,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-23 21:08:59,649 INFO L413 NwaCegarLoop]: 718 mSDtfsCounter, 294 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1238 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:59,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1178 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 692 Invalid, 0 Unknown, 1238 Unchecked, 3.0s Time] [2023-11-23 21:08:59,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2023-11-23 21:08:59,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1178. [2023-11-23 21:08:59,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 724 states have (on average 2.1146408839779007) internal successors, (1531), 1168 states have internal predecessors, (1531), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-23 21:08:59,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1545 transitions. [2023-11-23 21:08:59,686 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1545 transitions. Word has length 12 [2023-11-23 21:08:59,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:59,686 INFO L495 AbstractCegarLoop]: Abstraction has 1178 states and 1545 transitions. [2023-11-23 21:08:59,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:08:59,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1545 transitions. [2023-11-23 21:08:59,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 21:08:59,688 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:59,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:59,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:08:59,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:08:59,893 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-23 21:08:59,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:59,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1148939275, now seen corresponding path program 1 times [2023-11-23 21:08:59,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:08:59,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079740358] [2023-11-23 21:08:59,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:59,894 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 [2023-11-23 21:08:59,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:08:59,896 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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) [2023-11-23 21:08:59,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-23 21:09:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:00,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:09:00,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:00,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:00,087 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:00,087 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:09:00,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079740358] [2023-11-23 21:09:00,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079740358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:00,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:00,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:09:00,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246747977] [2023-11-23 21:09:00,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:00,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:09:00,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:09:00,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:09:00,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:00,091 INFO L87 Difference]: Start difference. First operand 1178 states and 1545 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:09:01,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:01,240 INFO L93 Difference]: Finished difference Result 1109 states and 1425 transitions. [2023-11-23 21:09:01,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:09:01,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-23 21:09:01,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:01,247 INFO L225 Difference]: With dead ends: 1109 [2023-11-23 21:09:01,247 INFO L226 Difference]: Without dead ends: 1109 [2023-11-23 21:09:01,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:09:01,248 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 70 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:01,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1511 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 21:09:01,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2023-11-23 21:09:01,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1109. [2023-11-23 21:09:01,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 679 states have (on average 2.078055964653903) internal successors, (1411), 1099 states have internal predecessors, (1411), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-23 21:09:01,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1425 transitions. [2023-11-23 21:09:01,283 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1425 transitions. Word has length 13 [2023-11-23 21:09:01,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:09:01,284 INFO L495 AbstractCegarLoop]: Abstraction has 1109 states and 1425 transitions. [2023-11-23 21:09:01,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:09:01,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1425 transitions. [2023-11-23 21:09:01,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 21:09:01,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:09:01,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:09:01,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:09:01,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:09:01,489 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr364REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-23 21:09:01,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:09:01,490 INFO L85 PathProgramCache]: Analyzing trace with hash 324073573, now seen corresponding path program 1 times [2023-11-23 21:09:01,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:09:01,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816052543] [2023-11-23 21:09:01,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:09:01,491 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 [2023-11-23 21:09:01,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:09:01,492 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -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) [2023-11-23 21:09:01,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d847a1c-feeb-45cb-8991-37d8f0edbb39/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-23 21:09:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:09:01,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:09:01,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:09:01,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:09:01,684 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:09:01,684 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:09:01,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816052543] [2023-11-23 21:09:01,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816052543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:09:01,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:09:01,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:09:01,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628905637] [2023-11-23 21:09:01,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:09:01,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:09:01,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:09:01,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:09:01,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:09:01,688 INFO L87 Difference]: Start difference. First operand 1109 states and 1425 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:09:03,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:09:03,049 INFO L93 Difference]: Finished difference Result 1095 states and 1362 transitions. [2023-11-23 21:09:03,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:09:03,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-23 21:09:03,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:09:03,056 INFO L225 Difference]: With dead ends: 1095 [2023-11-23 21:09:03,056 INFO L226 Difference]: Without dead ends: 1095 [2023-11-23 21:09:03,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:09:03,057 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 58 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:09:03,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2223 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 21:09:03,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states.