./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:11:22,099 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:11:22,215 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2023-11-19 04:11:22,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:11:22,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:11:22,257 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:11:22,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:11:22,258 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:11:22,262 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:11:22,267 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:11:22,267 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:11:22,269 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:11:22,269 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:11:22,271 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:11:22,272 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:11:22,272 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:11:22,273 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:11:22,273 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:11:22,274 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:11:22,274 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:11:22,275 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:11:22,275 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:11:22,276 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:11:22,276 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:11:22,278 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:11:22,278 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:11:22,279 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:11:22,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:11:22,279 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:11:22,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:11:22,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:11:22,282 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:11:22,282 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:11:22,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:11:22,283 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:11:22,283 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:11:22,283 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:11:22,284 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:11:22,284 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:11:22,284 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:11:22,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:11:22,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:11:22,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:11:22,286 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:11:22,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:11:22,287 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:11:22,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:11:22,287 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:11:22,287 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:11:22,287 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_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c81340d9d0e66dca5ab126c254e84ac0eff8aac681c837312fa0969b8f7f2ee [2023-11-19 04:11:22,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:11:22,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:11:22,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:11:22,578 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:11:22,578 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:11:22,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-3.i [2023-11-19 04:11:25,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:11:26,163 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:11:26,164 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-3.i [2023-11-19 04:11:26,183 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/data/26f304e6e/0eedb64ddb9c44a8ac7204763da297c8/FLAG7590c8f6c [2023-11-19 04:11:26,200 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/data/26f304e6e/0eedb64ddb9c44a8ac7204763da297c8 [2023-11-19 04:11:26,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:11:26,204 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:11:26,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:26,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:11:26,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:11:26,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:26" (1/1) ... [2023-11-19 04:11:26,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c26595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:26, skipping insertion in model container [2023-11-19 04:11:26,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:26" (1/1) ... [2023-11-19 04:11:26,299 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:11:26,592 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:11:27,030 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:27,051 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 04:11:27,052 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@519969bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:27, skipping insertion in model container [2023-11-19 04:11:27,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:27,053 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 04:11:27,056 INFO L158 Benchmark]: Toolchain (without parser) took 850.93ms. Allocated memory is still 130.0MB. Free memory was 86.9MB in the beginning and 64.9MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 04:11:27,057 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 130.0MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:11:27,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 847.31ms. Allocated memory is still 130.0MB. Free memory was 86.5MB in the beginning and 64.9MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 04:11:27,060 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 130.0MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 847.31ms. Allocated memory is still 130.0MB. Free memory was 86.5MB in the beginning and 64.9MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:11:29,600 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:11:29,742 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2023-11-19 04:11:29,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:11:29,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:11:29,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:11:29,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:11:29,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:11:29,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:11:29,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:11:29,808 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:11:29,809 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:11:29,809 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:11:29,811 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:11:29,811 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:11:29,812 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:11:29,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:11:29,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:11:29,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:11:29,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:11:29,815 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:11:29,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:11:29,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:11:29,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:11:29,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:11:29,818 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:11:29,818 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:11:29,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:11:29,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:11:29,820 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:11:29,821 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:11:29,822 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:11:29,822 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:11:29,822 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:11:29,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:11:29,823 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:11:29,824 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:11:29,824 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:11:29,825 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:11:29,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:11:29,825 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:11:29,826 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:11:29,826 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:11:29,826 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:11:29,827 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:11:29,827 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:11:29,827 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_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c81340d9d0e66dca5ab126c254e84ac0eff8aac681c837312fa0969b8f7f2ee [2023-11-19 04:11:30,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:11:30,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:11:30,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:11:30,286 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:11:30,288 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:11:30,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-3.i [2023-11-19 04:11:33,590 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:11:33,980 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:11:33,991 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-3.i [2023-11-19 04:11:34,023 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/data/2e61ea054/89fcd7b93c55432381b2fe672a569e63/FLAG7df2d3553 [2023-11-19 04:11:34,047 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/data/2e61ea054/89fcd7b93c55432381b2fe672a569e63 [2023-11-19 04:11:34,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:11:34,055 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:11:34,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:34,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:11:34,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:11:34,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:34" (1/1) ... [2023-11-19 04:11:34,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eae9906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:34, skipping insertion in model container [2023-11-19 04:11:34,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:11:34" (1/1) ... [2023-11-19 04:11:34,153 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:11:34,527 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:11:34,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:34,918 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 04:11:34,956 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:11:34,964 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:11:35,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:35,065 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:11:35,100 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:11:35,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:11:35,279 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:11:35,287 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:11:35,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:35 WrapperNode [2023-11-19 04:11:35,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:11:35,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:11:35,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:11:35,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:11:35,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:35" (1/1) ... [2023-11-19 04:11:35,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:35" (1/1) ... [2023-11-19 04:11:35,445 INFO L138 Inliner]: procedures = 181, calls = 440, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1422 [2023-11-19 04:11:35,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:11:35,447 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:11:35,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:11:35,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:11:35,457 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:35" (1/1) ... [2023-11-19 04:11:35,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:35" (1/1) ... [2023-11-19 04:11:35,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:35" (1/1) ... [2023-11-19 04:11:35,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:35" (1/1) ... [2023-11-19 04:11:35,597 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:35" (1/1) ... [2023-11-19 04:11:35,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:35" (1/1) ... [2023-11-19 04:11:35,648 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:35" (1/1) ... [2023-11-19 04:11:35,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:35" (1/1) ... [2023-11-19 04:11:35,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:11:35,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:11:35,690 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:11:35,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:11:35,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:35" (1/1) ... [2023-11-19 04:11:35,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:11:35,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:11:35,731 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:11:35,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:11:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 04:11:35,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:11:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:11:35,790 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:11:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:11:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:11:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:11:35,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:11:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:11:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:11:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:11:35,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:11:35,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:11:35,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:11:36,148 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:11:36,150 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:11:49,555 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:11:49,568 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:11:49,568 INFO L302 CfgBuilder]: Removed 77 assume(true) statements. [2023-11-19 04:11:49,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:11:49 BoogieIcfgContainer [2023-11-19 04:11:49,575 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:11:49,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:11:49,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:11:49,581 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:11:49,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:11:34" (1/3) ... [2023-11-19 04:11:49,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b45c2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:11:49, skipping insertion in model container [2023-11-19 04:11:49,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:11:35" (2/3) ... [2023-11-19 04:11:49,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b45c2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:11:49, skipping insertion in model container [2023-11-19 04:11:49,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:11:49" (3/3) ... [2023-11-19 04:11:49,583 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test4-3.i [2023-11-19 04:11:49,604 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:11:49,604 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:11:49,656 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:11:49,662 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;@69da8ec4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:11:49,662 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:11:49,668 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 04:11:49,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:11:49,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:49,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 04:11:49,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:11:49,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:49,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1172867, now seen corresponding path program 1 times [2023-11-19 04:11:49,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:49,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550221857] [2023-11-19 04:11:49,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:49,696 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 04:11:49,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:49,700 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:11:49,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:11:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:49,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:11:49,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:50,029 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 04:11:50,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:50,030 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:50,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550221857] [2023-11-19 04:11:50,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550221857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:50,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:11:50,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:11:50,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185252659] [2023-11-19 04:11:50,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:50,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:11:50,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:50,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:11:50,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:11:50,099 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 04:11:52,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:11:54,298 WARN L539 Checker$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 04:11:55,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:11:55,180 INFO L93 Difference]: Finished difference Result 314 states and 409 transitions. [2023-11-19 04:11:55,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:11:55,183 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 04:11:55,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:11:55,194 INFO L225 Difference]: With dead ends: 314 [2023-11-19 04:11:55,194 INFO L226 Difference]: Without dead ends: 310 [2023-11-19 04:11:55,195 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 04:11:55,201 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 83 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s 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, 5.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:11:55,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 656 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2023-11-19 04:11:55,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-19 04:11:55,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 260. [2023-11-19 04:11:55,258 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 04:11:55,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 338 transitions. [2023-11-19 04:11:55,263 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 338 transitions. Word has length 4 [2023-11-19 04:11:55,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:11:55,264 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 338 transitions. [2023-11-19 04:11:55,264 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 04:11:55,264 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 338 transitions. [2023-11-19 04:11:55,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:11:55,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:11:55,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:11:55,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:11:55,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:11:55,468 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:11:55,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:11:55,469 INFO L85 PathProgramCache]: Analyzing trace with hash 310602656, now seen corresponding path program 1 times [2023-11-19 04:11:55,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:11:55,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598267081] [2023-11-19 04:11:55,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:11:55,470 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 04:11:55,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:11:55,472 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:11:55,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:11:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:11:55,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:11:55,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:11:55,775 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 04:11:55,776 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:11:55,779 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:11:55,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598267081] [2023-11-19 04:11:55,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598267081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:11:55,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:11:55,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:11:55,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759151157] [2023-11-19 04:11:55,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:11:55,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:11:55,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:11:55,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:11:55,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:11:55,785 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 04:11:58,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:12:00,983 WARN L539 Checker$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 04:12:05,161 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 04:12:05,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:05,579 INFO L93 Difference]: Finished difference Result 433 states and 563 transitions. [2023-11-19 04:12:05,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:12:05,582 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 04:12:05,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:05,586 INFO L225 Difference]: With dead ends: 433 [2023-11-19 04:12:05,586 INFO L226 Difference]: Without dead ends: 433 [2023-11-19 04:12:05,586 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 04:12:05,588 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 245 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s 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, 9.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:05,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 873 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2023-11-19 04:12:05,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-11-19 04:12:05,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 379. [2023-11-19 04:12:05,613 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 04:12:05,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 492 transitions. [2023-11-19 04:12:05,617 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 492 transitions. Word has length 11 [2023-11-19 04:12:05,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:05,617 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 492 transitions. [2023-11-19 04:12:05,618 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 04:12:05,618 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 492 transitions. [2023-11-19 04:12:05,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 04:12:05,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:05,619 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 04:12:05,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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)] Forceful destruction successful, exit code 0 [2023-11-19 04:12:05,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:05,830 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:12:05,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:05,831 INFO L85 PathProgramCache]: Analyzing trace with hash -401982605, now seen corresponding path program 1 times [2023-11-19 04:12:05,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:05,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403922698] [2023-11-19 04:12:05,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:05,832 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 04:12:05,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:05,834 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:05,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:06,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:12:06,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:06,150 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 04:12:06,150 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:12:06,150 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:12:06,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403922698] [2023-11-19 04:12:06,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403922698] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:06,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:06,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:12:06,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917427811] [2023-11-19 04:12:06,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:06,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:12:06,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:12:06,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:12:06,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:12:06,154 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 04:12:07,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:07,235 INFO L93 Difference]: Finished difference Result 431 states and 559 transitions. [2023-11-19 04:12:07,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:12:07,242 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 04:12:07,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:07,246 INFO L225 Difference]: With dead ends: 431 [2023-11-19 04:12:07,246 INFO L226 Difference]: Without dead ends: 431 [2023-11-19 04:12:07,246 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 04:12:07,248 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 128 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:07,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 600 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 04:12:07,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-11-19 04:12:07,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 377. [2023-11-19 04:12:07,269 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 04:12:07,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 488 transitions. [2023-11-19 04:12:07,273 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 488 transitions. Word has length 27 [2023-11-19 04:12:07,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:07,273 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 488 transitions. [2023-11-19 04:12:07,274 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 04:12:07,274 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 488 transitions. [2023-11-19 04:12:07,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 04:12:07,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:07,276 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 04:12:07,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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)] Forceful destruction successful, exit code 0 [2023-11-19 04:12:07,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:07,479 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:12:07,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:07,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1219631055, now seen corresponding path program 1 times [2023-11-19 04:12:07,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:07,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590766922] [2023-11-19 04:12:07,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:07,480 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 04:12:07,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:07,482 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:07,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:07,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 04:12:07,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:07,801 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 04:12:07,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:12:07,802 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:12:07,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590766922] [2023-11-19 04:12:07,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1590766922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:07,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:07,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:12:07,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367910136] [2023-11-19 04:12:07,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:07,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:12:07,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:12:07,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:12:07,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:12:07,805 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 04:12:10,152 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 04:12:11,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:12:13,878 WARN L539 Checker$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 04:12:15,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:12:18,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:12:19,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:19,493 INFO L93 Difference]: Finished difference Result 431 states and 558 transitions. [2023-11-19 04:12:19,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:12:19,496 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 04:12:19,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:19,498 INFO L225 Difference]: With dead ends: 431 [2023-11-19 04:12:19,499 INFO L226 Difference]: Without dead ends: 425 [2023-11-19 04:12:19,499 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 04:12:19,500 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 132 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s 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, 11.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:19,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 904 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 103 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2023-11-19 04:12:19,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-11-19 04:12:19,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 371. [2023-11-19 04:12:19,515 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 04:12:19,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 481 transitions. [2023-11-19 04:12:19,519 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 481 transitions. Word has length 27 [2023-11-19 04:12:19,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:19,519 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 481 transitions. [2023-11-19 04:12:19,519 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 04:12:19,520 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 481 transitions. [2023-11-19 04:12:19,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-19 04:12:19,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:19,528 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 04:12:19,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:19,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:19,732 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:12:19,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:19,733 INFO L85 PathProgramCache]: Analyzing trace with hash -157580521, now seen corresponding path program 1 times [2023-11-19 04:12:19,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:19,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499281993] [2023-11-19 04:12:19,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:19,735 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 04:12:19,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:19,738 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:19,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:20,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:12:20,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:20,714 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 04:12:20,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:12:20,714 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:12:20,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499281993] [2023-11-19 04:12:20,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499281993] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:20,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:20,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:12:20,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369503319] [2023-11-19 04:12:20,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:20,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:12:20,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:12:20,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:12:20,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:12:20,719 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 04:12:20,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:20,885 INFO L93 Difference]: Finished difference Result 379 states and 473 transitions. [2023-11-19 04:12:20,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:12:20,886 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 04:12:20,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:20,889 INFO L225 Difference]: With dead ends: 379 [2023-11-19 04:12:20,889 INFO L226 Difference]: Without dead ends: 379 [2023-11-19 04:12:20,890 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 04:12:20,891 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 04:12:20,892 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 04:12:20,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-11-19 04:12:20,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 377. [2023-11-19 04:12:20,904 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 04:12:20,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 471 transitions. [2023-11-19 04:12:20,908 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 471 transitions. Word has length 147 [2023-11-19 04:12:20,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:20,908 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 471 transitions. [2023-11-19 04:12:20,909 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 04:12:20,909 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 471 transitions. [2023-11-19 04:12:20,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-19 04:12:20,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:20,913 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 04:12:20,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:21,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:21,127 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:12:21,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:21,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1659303621, now seen corresponding path program 1 times [2023-11-19 04:12:21,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:21,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691002895] [2023-11-19 04:12:21,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:21,129 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 04:12:21,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:21,130 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:21,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:22,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:12:22,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:22,213 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 04:12:22,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:12:22,214 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:12:22,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691002895] [2023-11-19 04:12:22,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691002895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:22,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:22,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:12:22,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163219914] [2023-11-19 04:12:22,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:22,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:12:22,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:12:22,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:12:22,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:12:22,218 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 04:12:22,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:22,353 INFO L93 Difference]: Finished difference Result 365 states and 451 transitions. [2023-11-19 04:12:22,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:12:22,354 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 04:12:22,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:22,357 INFO L225 Difference]: With dead ends: 365 [2023-11-19 04:12:22,357 INFO L226 Difference]: Without dead ends: 365 [2023-11-19 04:12:22,358 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 04:12:22,359 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 04:12:22,359 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 04:12:22,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-11-19 04:12:22,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2023-11-19 04:12:22,371 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 04:12:22,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 451 transitions. [2023-11-19 04:12:22,374 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 451 transitions. Word has length 147 [2023-11-19 04:12:22,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:22,375 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 451 transitions. [2023-11-19 04:12:22,375 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 04:12:22,375 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 451 transitions. [2023-11-19 04:12:22,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-19 04:12:22,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:22,378 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 04:12:22,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:22,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:22,593 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:12:22,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:22,593 INFO L85 PathProgramCache]: Analyzing trace with hash 632090379, now seen corresponding path program 1 times [2023-11-19 04:12:22,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:22,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990309213] [2023-11-19 04:12:22,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:22,594 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 04:12:22,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:22,596 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:22,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:23,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:12:23,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:12:23,569 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 04:12:23,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:12:23,570 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:12:23,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990309213] [2023-11-19 04:12:23,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990309213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:23,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:23,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:12:23,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318394573] [2023-11-19 04:12:23,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:23,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:12:23,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:12:23,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:12:23,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:12:23,574 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 04:12:23,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:23,683 INFO L93 Difference]: Finished difference Result 368 states and 457 transitions. [2023-11-19 04:12:23,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:12:23,684 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 04:12:23,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:23,688 INFO L225 Difference]: With dead ends: 368 [2023-11-19 04:12:23,688 INFO L226 Difference]: Without dead ends: 368 [2023-11-19 04:12:23,688 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 04:12:23,689 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 04:12:23,690 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 04:12:23,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-11-19 04:12:23,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2023-11-19 04:12:23,703 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 04:12:23,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 457 transitions. [2023-11-19 04:12:23,708 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 457 transitions. Word has length 147 [2023-11-19 04:12:23,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:23,714 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 457 transitions. [2023-11-19 04:12:23,715 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 04:12:23,715 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 457 transitions. [2023-11-19 04:12:23,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-19 04:12:23,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:23,719 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 04:12:23,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:23,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:23,932 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:12:23,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:23,933 INFO L85 PathProgramCache]: Analyzing trace with hash -715916273, now seen corresponding path program 1 times [2023-11-19 04:12:23,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:12:23,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993076379] [2023-11-19 04:12:23,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:23,934 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 04:12:23,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:12:23,936 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 04:12:23,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0dd6f1b-e78b-44c3-859f-10f6d48a659f/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 [2023-11-19 04:12:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:24,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:12:24,938 INFO L285 TraceCheckSpWp]: Computing forward predicates...