./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9bd2c7ff 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_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c81340d9d0e66dca5ab126c254e84ac0eff8aac681c837312fa0969b8f7f2ee --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:55:20,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:55:20,286 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2023-11-19 04:55:20,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:55:20,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:55:20,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:55:20,351 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:55:20,352 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:55:20,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:55:20,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:55:20,358 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:55:20,359 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:55:20,359 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:55:20,361 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:55:20,362 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:55:20,362 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:55:20,362 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:55:20,363 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:55:20,363 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:55:20,364 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:55:20,364 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:55:20,365 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:55:20,365 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:55:20,366 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:55:20,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:55:20,367 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:55:20,368 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:55:20,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:55:20,369 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:55:20,369 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:55:20,370 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:55:20,371 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:55:20,371 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:55:20,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:55:20,371 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:55:20,372 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:55:20,372 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:55:20,372 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:55:20,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:55:20,373 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:55:20,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:55:20,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:55:20,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:55:20,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:55:20,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:55:20,375 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:55:20,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:55:20,375 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:55:20,375 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:55:20,375 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_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c81340d9d0e66dca5ab126c254e84ac0eff8aac681c837312fa0969b8f7f2ee [2023-11-19 04:55:20,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:55:20,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:55:20,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:55:20,746 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:55:20,746 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:55:20,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i [2023-11-19 04:55:23,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:55:24,191 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:55:24,195 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i [2023-11-19 04:55:24,230 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/data/bae627839/07d540a31fd44660b5c4a3c54cab0203/FLAG116a40166 [2023-11-19 04:55:24,248 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/data/bae627839/07d540a31fd44660b5c4a3c54cab0203 [2023-11-19 04:55:24,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:55:24,267 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:55:24,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:55:24,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:55:24,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:55:24,279 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:55:24" (1/1) ... [2023-11-19 04:55:24,281 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe57f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:24, skipping insertion in model container [2023-11-19 04:55:24,281 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:55:24" (1/1) ... [2023-11-19 04:55:24,382 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:55:24,765 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:55:25,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:55:25,200 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) [2023-11-19 04:55:25,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1a23ca5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:25, skipping insertion in model container [2023-11-19 04:55:25,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:55:25,201 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 04:55:25,203 INFO L158 Benchmark]: Toolchain (without parser) took 935.38ms. Allocated memory is still 151.0MB. Free memory was 116.2MB in the beginning and 107.7MB in the end (delta: 8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:55:25,204 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:55:25,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 929.63ms. Allocated memory is still 151.0MB. Free memory was 116.2MB in the beginning and 107.7MB in the end (delta: 8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:55:25,206 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 929.63ms. Allocated memory is still 151.0MB. Free memory was 116.2MB in the beginning and 107.7MB in the end (delta: 8.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 740]: 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_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c81340d9d0e66dca5ab126c254e84ac0eff8aac681c837312fa0969b8f7f2ee --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:55:27,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:55:27,798 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2023-11-19 04:55:27,804 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:55:27,805 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:55:27,865 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:55:27,866 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:55:27,867 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:55:27,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:55:27,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:55:27,874 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:55:27,874 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:55:27,875 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:55:27,877 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:55:27,877 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:55:27,877 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:55:27,878 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:55:27,879 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:55:27,879 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:55:27,881 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:55:27,881 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:55:27,882 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:55:27,882 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:55:27,882 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:55:27,883 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:55:27,883 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:55:27,884 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:55:27,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:55:27,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:55:27,885 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:55:27,886 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:55:27,887 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:55:27,887 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:55:27,887 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:55:27,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:55:27,888 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:55:27,889 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:55:27,889 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:55:27,889 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:55:27,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:55:27,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:55:27,890 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:55:27,891 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:55:27,891 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:55:27,891 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:55:27,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:55:27,892 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_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c81340d9d0e66dca5ab126c254e84ac0eff8aac681c837312fa0969b8f7f2ee [2023-11-19 04:55:28,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:55:28,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:55:28,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:55:28,310 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:55:28,312 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:55:28,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i [2023-11-19 04:55:31,556 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:55:31,968 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:55:31,969 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-3.i [2023-11-19 04:55:32,003 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/data/24e47b5db/c7feebfcd0304d5caa158a86b4655c0a/FLAGaeca059ce [2023-11-19 04:55:32,022 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/data/24e47b5db/c7feebfcd0304d5caa158a86b4655c0a [2023-11-19 04:55:32,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:55:32,032 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:55:32,037 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:55:32,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:55:32,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:55:32,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:55:32" (1/1) ... [2023-11-19 04:55:32,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bedcfd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:32, skipping insertion in model container [2023-11-19 04:55:32,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:55:32" (1/1) ... [2023-11-19 04:55:32,161 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:55:32,479 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:55:32,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:55:32,924 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 04:55:32,945 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:55:32,967 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:55:33,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:55:33,076 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:55:33,093 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:55:33,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:55:33,232 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:55:33,240 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:55:33,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:33 WrapperNode [2023-11-19 04:55:33,241 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:55:33,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:55:33,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:55:33,242 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:55:33,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:33" (1/1) ... [2023-11-19 04:55:33,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:33" (1/1) ... [2023-11-19 04:55:33,393 INFO L138 Inliner]: procedures = 181, calls = 440, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1422 [2023-11-19 04:55:33,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:55:33,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:55:33,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:55:33,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:55:33,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:33" (1/1) ... [2023-11-19 04:55:33,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:33" (1/1) ... [2023-11-19 04:55:33,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:33" (1/1) ... [2023-11-19 04:55:33,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:33" (1/1) ... [2023-11-19 04:55:33,491 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:33" (1/1) ... [2023-11-19 04:55:33,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:33" (1/1) ... [2023-11-19 04:55:33,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:33" (1/1) ... [2023-11-19 04:55:33,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:33" (1/1) ... [2023-11-19 04:55:33,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:55:33,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:55:33,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:55:33,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:55:33,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:33" (1/1) ... [2023-11-19 04:55:33,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:55:33,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:55:33,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:55:33,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:55:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 04:55:33,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:55:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:55:33,683 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:55:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:55:33,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:55:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:55:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:55:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:55:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:55:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:55:33,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:55:33,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:55:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:55:33,997 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:55:34,000 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:55:49,768 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:55:49,786 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:55:49,787 INFO L302 CfgBuilder]: Removed 77 assume(true) statements. [2023-11-19 04:55:49,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:49 BoogieIcfgContainer [2023-11-19 04:55:49,802 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:55:49,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:55:49,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:55:49,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:55:49,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:55:32" (1/3) ... [2023-11-19 04:55:49,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d020fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:55:49, skipping insertion in model container [2023-11-19 04:55:49,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:33" (2/3) ... [2023-11-19 04:55:49,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d020fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:55:49, skipping insertion in model container [2023-11-19 04:55:49,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:49" (3/3) ... [2023-11-19 04:55:49,815 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test4-3.i [2023-11-19 04:55:49,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:55:49,836 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:55:49,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:55:49,915 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;@252bca1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:55:49,916 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:55:49,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 251 states, 241 states have (on average 1.6556016597510372) internal successors, (399), 243 states have internal predecessors, (399), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 04:55:49,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:55:49,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:49,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 04:55:49,948 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:55:49,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:49,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1172867, now seen corresponding path program 1 times [2023-11-19 04:55:49,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:55:49,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136165237] [2023-11-19 04:55:49,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:49,973 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 [2023-11-19 04:55:49,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:55:49,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:55:50,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:55:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:50,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:55:50,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:50,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:55:50,278 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:55:50,279 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:55:50,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136165237] [2023-11-19 04:55:50,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136165237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:50,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:50,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:55:50,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431340466] [2023-11-19 04:55:50,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:50,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:55:50,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:55:50,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:55:50,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:55:50,340 INFO L87 Difference]: Start difference. First operand has 251 states, 241 states have (on average 1.6556016597510372) internal successors, (399), 243 states have internal predecessors, (399), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-19 04:55:52,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:55:54,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:55:55,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:55,177 INFO L93 Difference]: Finished difference Result 314 states and 409 transitions. [2023-11-19 04:55:55,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:55:55,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-19 04:55:55,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:55,192 INFO L225 Difference]: With dead ends: 314 [2023-11-19 04:55:55,192 INFO L226 Difference]: Without dead ends: 310 [2023-11-19 04:55:55,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:55:55,197 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 83 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:55,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 656 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2023-11-19 04:55:55,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-19 04:55:55,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 260. [2023-11-19 04:55:55,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 251 states have (on average 1.298804780876494) internal successors, (326), 252 states have internal predecessors, (326), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 04:55:55,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 338 transitions. [2023-11-19 04:55:55,275 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 338 transitions. Word has length 4 [2023-11-19 04:55:55,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:55,275 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 338 transitions. [2023-11-19 04:55:55,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-19 04:55:55,276 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 338 transitions. [2023-11-19 04:55:55,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:55:55,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:55,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:55:55,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:55:55,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:55:55,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:55:55,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:55,486 INFO L85 PathProgramCache]: Analyzing trace with hash 310602656, now seen corresponding path program 1 times [2023-11-19 04:55:55,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:55:55,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810921489] [2023-11-19 04:55:55,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:55,487 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 [2023-11-19 04:55:55,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:55:55,489 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:55:55,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:55:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:55,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:55:55,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:55,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:55:55,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:55:55,802 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:55:55,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810921489] [2023-11-19 04:55:55,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810921489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:55,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:55,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:55:55,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542539580] [2023-11-19 04:55:55,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:55,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:55:55,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:55:55,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:55:55,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:55:55,808 INFO L87 Difference]: Start difference. First operand 260 states and 338 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-19 04:55:58,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:00,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:02,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:06,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:06,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:56:06,857 INFO L93 Difference]: Finished difference Result 433 states and 563 transitions. [2023-11-19 04:56:06,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:56:06,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 [2023-11-19 04:56:06,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:56:06,864 INFO L225 Difference]: With dead ends: 433 [2023-11-19 04:56:06,865 INFO L226 Difference]: Without dead ends: 433 [2023-11-19 04:56:06,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:56:06,867 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 245 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:56:06,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 873 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 3 Unknown, 0 Unchecked, 11.0s Time] [2023-11-19 04:56:06,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-11-19 04:56:06,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 379. [2023-11-19 04:56:06,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 367 states have (on average 1.2915531335149864) internal successors, (474), 368 states have internal predecessors, (474), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:56:06,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 492 transitions. [2023-11-19 04:56:06,898 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 492 transitions. Word has length 11 [2023-11-19 04:56:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:56:06,899 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 492 transitions. [2023-11-19 04:56:06,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-11-19 04:56:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 492 transitions. [2023-11-19 04:56:06,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 04:56:06,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:06,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:56:06,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:07,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:07,104 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:56:07,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:07,104 INFO L85 PathProgramCache]: Analyzing trace with hash -401982605, now seen corresponding path program 1 times [2023-11-19 04:56:07,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:56:07,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592287582] [2023-11-19 04:56:07,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:07,105 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 [2023-11-19 04:56:07,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:56:07,107 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:56:07,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:56:07,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:56:07,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:56:07,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 04:56:07,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:56:07,401 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:56:07,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592287582] [2023-11-19 04:56:07,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592287582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:56:07,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:56:07,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:56:07,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078314466] [2023-11-19 04:56:07,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:56:07,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:56:07,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:56:07,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:56:07,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:56:07,404 INFO L87 Difference]: Start difference. First operand 379 states and 492 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-19 04:56:08,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:56:08,344 INFO L93 Difference]: Finished difference Result 431 states and 559 transitions. [2023-11-19 04:56:08,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:56:08,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2023-11-19 04:56:08,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:56:08,353 INFO L225 Difference]: With dead ends: 431 [2023-11-19 04:56:08,353 INFO L226 Difference]: Without dead ends: 431 [2023-11-19 04:56:08,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:56:08,354 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 128 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 04:56:08,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 600 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 04:56:08,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-11-19 04:56:08,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 377. [2023-11-19 04:56:08,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 365 states have (on average 1.2876712328767124) internal successors, (470), 366 states have internal predecessors, (470), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:56:08,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 488 transitions. [2023-11-19 04:56:08,386 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 488 transitions. Word has length 27 [2023-11-19 04:56:08,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:56:08,387 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 488 transitions. [2023-11-19 04:56:08,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-19 04:56:08,387 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 488 transitions. [2023-11-19 04:56:08,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 04:56:08,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:08,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:56:08,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-19 04:56:08,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:08,590 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:56:08,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:08,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1219631055, now seen corresponding path program 1 times [2023-11-19 04:56:08,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:56:08,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759185046] [2023-11-19 04:56:08,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:08,591 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 [2023-11-19 04:56:08,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:56:08,592 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:56:08,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:56:08,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:56:08,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:56:08,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:56:08,932 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:56:08,933 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:56:08,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759185046] [2023-11-19 04:56:08,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759185046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:56:08,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:56:08,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:56:08,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591481642] [2023-11-19 04:56:08,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:56:08,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:56:08,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:56:08,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:56:08,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:56:08,935 INFO L87 Difference]: Start difference. First operand 377 states and 488 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-11-19 04:56:11,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:14,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:18,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:56:18,727 INFO L93 Difference]: Finished difference Result 431 states and 558 transitions. [2023-11-19 04:56:18,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:56:18,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2023-11-19 04:56:18,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:56:18,733 INFO L225 Difference]: With dead ends: 431 [2023-11-19 04:56:18,733 INFO L226 Difference]: Without dead ends: 425 [2023-11-19 04:56:18,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:56:18,735 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 132 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:56:18,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 904 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 103 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2023-11-19 04:56:18,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-11-19 04:56:18,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 371. [2023-11-19 04:56:18,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 359 states have (on average 1.2896935933147633) internal successors, (463), 360 states have internal predecessors, (463), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:56:18,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 481 transitions. [2023-11-19 04:56:18,752 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 481 transitions. Word has length 27 [2023-11-19 04:56:18,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:56:18,753 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 481 transitions. [2023-11-19 04:56:18,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-11-19 04:56:18,753 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 481 transitions. [2023-11-19 04:56:18,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-19 04:56:18,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:18,761 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:56:18,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:18,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:18,967 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:56:18,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:18,968 INFO L85 PathProgramCache]: Analyzing trace with hash -157580521, now seen corresponding path program 1 times [2023-11-19 04:56:18,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:56:18,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866920926] [2023-11-19 04:56:18,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:18,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:56:18,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:56:18,972 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:56:19,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:56:19,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:56:19,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:56:20,035 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 04:56:20,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:56:20,036 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:56:20,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866920926] [2023-11-19 04:56:20,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866920926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:56:20,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:56:20,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:56:20,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108678744] [2023-11-19 04:56:20,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:56:20,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:56:20,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:56:20,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:56:20,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:56:20,040 INFO L87 Difference]: Start difference. First operand 371 states and 481 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 04:56:20,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:56:20,194 INFO L93 Difference]: Finished difference Result 379 states and 473 transitions. [2023-11-19 04:56:20,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:56:20,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 147 [2023-11-19 04:56:20,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:56:20,198 INFO L225 Difference]: With dead ends: 379 [2023-11-19 04:56:20,198 INFO L226 Difference]: Without dead ends: 379 [2023-11-19 04:56:20,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:56:20,199 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 43 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:56:20,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 847 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:56:20,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-11-19 04:56:20,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 377. [2023-11-19 04:56:20,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 365 states have (on average 1.2410958904109588) internal successors, (453), 366 states have internal predecessors, (453), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:56:20,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 471 transitions. [2023-11-19 04:56:20,214 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 471 transitions. Word has length 147 [2023-11-19 04:56:20,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:56:20,215 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 471 transitions. [2023-11-19 04:56:20,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 04:56:20,215 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 471 transitions. [2023-11-19 04:56:20,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-19 04:56:20,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:20,219 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:56:20,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:20,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:20,433 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:56:20,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:20,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1659303621, now seen corresponding path program 1 times [2023-11-19 04:56:20,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:56:20,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860746959] [2023-11-19 04:56:20,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:20,435 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 [2023-11-19 04:56:20,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:56:20,436 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:56:20,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:56:21,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:56:21,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:56:21,415 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 04:56:21,416 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:56:21,416 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:56:21,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [860746959] [2023-11-19 04:56:21,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [860746959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:56:21,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:56:21,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:56:21,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302949264] [2023-11-19 04:56:21,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:56:21,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:56:21,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:56:21,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:56:21,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:56:21,419 INFO L87 Difference]: Start difference. First operand 377 states and 471 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 04:56:21,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:56:21,538 INFO L93 Difference]: Finished difference Result 365 states and 451 transitions. [2023-11-19 04:56:21,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:56:21,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 147 [2023-11-19 04:56:21,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:56:21,542 INFO L225 Difference]: With dead ends: 365 [2023-11-19 04:56:21,542 INFO L226 Difference]: Without dead ends: 365 [2023-11-19 04:56:21,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:56:21,543 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 12 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:56:21,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 850 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:56:21,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-11-19 04:56:21,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2023-11-19 04:56:21,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 353 states have (on average 1.226628895184136) internal successors, (433), 354 states have internal predecessors, (433), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 04:56:21,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 451 transitions. [2023-11-19 04:56:21,557 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 451 transitions. Word has length 147 [2023-11-19 04:56:21,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:56:21,558 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 451 transitions. [2023-11-19 04:56:21,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 04:56:21,559 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 451 transitions. [2023-11-19 04:56:21,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-19 04:56:21,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:21,561 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:56:21,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:21,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:21,774 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:56:21,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:21,775 INFO L85 PathProgramCache]: Analyzing trace with hash 632090379, now seen corresponding path program 1 times [2023-11-19 04:56:21,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:56:21,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743238330] [2023-11-19 04:56:21,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:21,776 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 [2023-11-19 04:56:21,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:56:21,777 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:56:21,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:56:22,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:56:22,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:56:22,669 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 04:56:22,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:56:22,670 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:56:22,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743238330] [2023-11-19 04:56:22,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743238330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:56:22,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:56:22,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:56:22,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68249723] [2023-11-19 04:56:22,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:56:22,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:56:22,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:56:22,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:56:22,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:56:22,673 INFO L87 Difference]: Start difference. First operand 365 states and 451 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 04:56:22,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:56:22,765 INFO L93 Difference]: Finished difference Result 368 states and 457 transitions. [2023-11-19 04:56:22,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:56:22,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 147 [2023-11-19 04:56:22,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:56:22,770 INFO L225 Difference]: With dead ends: 368 [2023-11-19 04:56:22,771 INFO L226 Difference]: Without dead ends: 368 [2023-11-19 04:56:22,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:56:22,772 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 2 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:56:22,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 899 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:56:22,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-11-19 04:56:22,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2023-11-19 04:56:22,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 355 states have (on average 1.228169014084507) internal successors, (436), 357 states have internal predecessors, (436), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2023-11-19 04:56:22,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 457 transitions. [2023-11-19 04:56:22,788 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 457 transitions. Word has length 147 [2023-11-19 04:56:22,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:56:22,789 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 457 transitions. [2023-11-19 04:56:22,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 04:56:22,789 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 457 transitions. [2023-11-19 04:56:22,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-19 04:56:22,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:22,792 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:56:22,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:23,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 04:56:23,005 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:56:23,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:23,006 INFO L85 PathProgramCache]: Analyzing trace with hash -715916273, now seen corresponding path program 1 times [2023-11-19 04:56:23,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:56:23,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771549149] [2023-11-19 04:56:23,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:23,008 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 [2023-11-19 04:56:23,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:56:23,009 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 04:56:23,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5de6d8de-ff0f-4632-a694-1df34fe5af93/bin/utaipan-verify-t7M7D8N6sZ/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