./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc 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_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:11:06,065 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:11:06,187 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2023-11-25 00:11:06,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:11:06,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:11:06,229 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:11:06,230 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:11:06,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:11:06,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:11:06,237 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:11:06,238 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:11:06,239 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:11:06,240 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:11:06,241 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:11:06,242 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:11:06,242 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:11:06,243 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:11:06,243 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:11:06,243 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:11:06,244 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:11:06,244 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:11:06,245 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:11:06,246 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-25 00:11:06,246 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-25 00:11:06,247 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:11:06,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:11:06,248 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:11:06,248 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:11:06,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:11:06,276 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:11:06,277 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:11:06,277 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-25 00:11:06,277 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-25 00:11:06,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:11:06,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:11:06,278 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:11:06,278 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:11:06,279 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:11:06,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:11:06,279 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:11:06,279 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:11:06,280 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:11:06,280 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:11:06,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:11:06,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:11:06,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:11:06,281 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:11:06,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:11:06,281 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:11:06,282 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:11:06,282 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:11:06,282 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_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2023-11-25 00:11:06,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:11:06,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:11:06,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:11:06,618 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:11:06,618 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:11:06,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-11-25 00:11:09,607 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:11:10,008 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:11:10,009 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-11-25 00:11:10,027 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/data/1e61c7b64/7a91a8e8ea9a44e48e0704109ab4e863/FLAG053fd05d5 [2023-11-25 00:11:10,040 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/data/1e61c7b64/7a91a8e8ea9a44e48e0704109ab4e863 [2023-11-25 00:11:10,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:11:10,053 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:11:10,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:11:10,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:11:10,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:11:10,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:11:10" (1/1) ... [2023-11-25 00:11:10,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad892e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:10, skipping insertion in model container [2023-11-25 00:11:10,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:11:10" (1/1) ... [2023-11-25 00:11:10,148 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:11:10,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:11:10,711 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) [2023-11-25 00:11:10,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@13ef809a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:10, skipping insertion in model container [2023-11-25 00:11:10,712 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:11:10,713 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-25 00:11:10,715 INFO L158 Benchmark]: Toolchain (without parser) took 660.63ms. Allocated memory is still 176.2MB. Free memory was 145.7MB in the beginning and 126.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-25 00:11:10,716 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 130.0MB. Free memory was 102.4MB in the beginning and 102.3MB in the end (delta: 72.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:11:10,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 658.29ms. Allocated memory is still 176.2MB. Free memory was 145.7MB in the beginning and 126.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-25 00:11:10,719 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 130.0MB. Free memory was 102.4MB in the beginning and 102.3MB in the end (delta: 72.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 658.29ms. Allocated memory is still 176.2MB. Free memory was 145.7MB in the beginning and 126.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 736]: 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_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:11:12,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:11:13,103 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2023-11-25 00:11:13,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:11:13,113 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:11:13,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:11:13,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:11:13,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:11:13,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:11:13,164 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:11:13,164 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:11:13,165 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:11:13,165 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:11:13,167 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:11:13,167 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:11:13,168 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:11:13,168 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-25 00:11:13,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-25 00:11:13,170 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:11:13,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:11:13,171 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:11:13,171 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:11:13,172 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:11:13,172 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:11:13,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:11:13,173 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-25 00:11:13,173 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-25 00:11:13,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:11:13,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:11:13,175 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-25 00:11:13,176 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-25 00:11:13,176 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-25 00:11:13,177 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:11:13,177 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:11:13,177 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:11:13,178 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:11:13,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:11:13,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-25 00:11:13,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:11:13,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:11:13,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:11:13,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:11:13,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:11:13,181 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-25 00:11:13,181 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-25 00:11:13,181 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:11:13,182 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:11:13,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:11:13,182 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_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2023-11-25 00:11:13,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:11:13,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:11:13,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:11:13,586 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:11:13,587 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:11:13,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-11-25 00:11:16,754 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:11:17,195 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:11:17,213 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-11-25 00:11:17,242 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/data/31ec38f9b/4faf9902a09849dca27f257e03408da4/FLAG1c6061ce6 [2023-11-25 00:11:17,259 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/data/31ec38f9b/4faf9902a09849dca27f257e03408da4 [2023-11-25 00:11:17,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:11:17,268 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:11:17,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:11:17,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:11:17,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:11:17,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:11:17" (1/1) ... [2023-11-25 00:11:17,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388cc6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:17, skipping insertion in model container [2023-11-25 00:11:17,279 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:11:17" (1/1) ... [2023-11-25 00:11:17,354 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:11:17,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:11:18,053 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-25 00:11:18,094 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:11:18,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:11:18,196 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:11:18,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:11:18,394 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:11:18,403 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:11:18,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:18 WrapperNode [2023-11-25 00:11:18,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:11:18,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:11:18,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:11:18,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:11:18,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:18" (1/1) ... [2023-11-25 00:11:18,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:18" (1/1) ... [2023-11-25 00:11:18,554 INFO L138 Inliner]: procedures = 180, calls = 287, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1032 [2023-11-25 00:11:18,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:11:18,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:11:18,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:11:18,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:11:18,565 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:18" (1/1) ... [2023-11-25 00:11:18,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:18" (1/1) ... [2023-11-25 00:11:18,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:18" (1/1) ... [2023-11-25 00:11:18,574 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:18" (1/1) ... [2023-11-25 00:11:18,623 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:18" (1/1) ... [2023-11-25 00:11:18,633 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:18" (1/1) ... [2023-11-25 00:11:18,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:18" (1/1) ... [2023-11-25 00:11:18,644 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:18" (1/1) ... [2023-11-25 00:11:18,655 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:11:18,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:11:18,656 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:11:18,656 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:11:18,657 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:18" (1/1) ... [2023-11-25 00:11:18,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:11:18,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:11:18,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:11:18,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:11:18,766 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-25 00:11:18,766 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-25 00:11:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-25 00:11:18,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-25 00:11:18,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-25 00:11:18,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-25 00:11:18,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-25 00:11:18,770 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-25 00:11:18,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:11:18,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:11:18,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:11:18,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:11:18,771 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-25 00:11:18,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:11:18,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:11:18,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-25 00:11:18,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-25 00:11:18,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:11:18,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:11:19,025 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:11:19,028 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:11:26,810 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:11:26,863 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:11:26,864 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-25 00:11:26,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:11:26 BoogieIcfgContainer [2023-11-25 00:11:26,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:11:26,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:11:26,867 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:11:26,871 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:11:26,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:11:17" (1/3) ... [2023-11-25 00:11:26,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63062fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:11:26, skipping insertion in model container [2023-11-25 00:11:26,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:18" (2/3) ... [2023-11-25 00:11:26,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63062fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:11:26, skipping insertion in model container [2023-11-25 00:11:26,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:11:26" (3/3) ... [2023-11-25 00:11:26,876 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-1.i [2023-11-25 00:11:26,895 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:11:26,896 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-25 00:11:26,977 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:11:26,985 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;@33385296, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:11:26,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-25 00:11:26,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 192 states have (on average 1.6822916666666667) internal successors, (323), 201 states have internal predecessors, (323), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-25 00:11:27,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-25 00:11:27,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:27,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:27,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-25 00:11:27,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:27,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1413219959, now seen corresponding path program 1 times [2023-11-25 00:11:27,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:11:27,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783553775] [2023-11-25 00:11:27,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:27,032 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 [2023-11-25 00:11:27,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:11:27,038 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:11:27,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-25 00:11:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:27,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-25 00:11:27,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:11:27,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:11:27,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:11:27,248 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:11:27,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783553775] [2023-11-25 00:11:27,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783553775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:27,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:27,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:11:27,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993674023] [2023-11-25 00:11:27,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:27,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-25 00:11:27,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:11:27,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-25 00:11:27,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:11:27,304 INFO L87 Difference]: Start difference. First operand has 208 states, 192 states have (on average 1.6822916666666667) internal successors, (323), 201 states have internal predecessors, (323), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:11:27,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:27,385 INFO L93 Difference]: Finished difference Result 206 states and 271 transitions. [2023-11-25 00:11:27,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-25 00:11:27,390 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-25 00:11:27,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:27,406 INFO L225 Difference]: With dead ends: 206 [2023-11-25 00:11:27,406 INFO L226 Difference]: Without dead ends: 205 [2023-11-25 00:11:27,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-25 00:11:27,412 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:27,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 267 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:11:27,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-25 00:11:27,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2023-11-25 00:11:27,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 191 states have (on average 1.3193717277486912) internal successors, (252), 198 states have internal predecessors, (252), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-25 00:11:27,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 270 transitions. [2023-11-25 00:11:27,494 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 270 transitions. Word has length 8 [2023-11-25 00:11:27,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:27,495 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 270 transitions. [2023-11-25 00:11:27,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:11:27,495 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 270 transitions. [2023-11-25 00:11:27,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-25 00:11:27,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:27,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:27,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:11:27,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:11:27,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-25 00:11:27,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:27,700 INFO L85 PathProgramCache]: Analyzing trace with hash -896054892, now seen corresponding path program 1 times [2023-11-25 00:11:27,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:11:27,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754750942] [2023-11-25 00:11:27,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:27,701 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 [2023-11-25 00:11:27,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:11:27,728 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:11:27,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-25 00:11:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:27,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-25 00:11:27,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:11:28,002 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:11:28,003 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:11:28,004 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:11:28,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-25 00:11:28,122 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-25 00:11:28,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-25 00:11:28,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:11:28,144 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:11:28,144 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:11:28,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754750942] [2023-11-25 00:11:28,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754750942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:28,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:28,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:11:28,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987200600] [2023-11-25 00:11:28,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:28,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:11:28,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:11:28,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:11:28,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:11:28,148 INFO L87 Difference]: Start difference. First operand 205 states and 270 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-25 00:11:33,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:36,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:37,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:37,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:37,979 INFO L93 Difference]: Finished difference Result 337 states and 451 transitions. [2023-11-25 00:11:37,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:11:37,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2023-11-25 00:11:37,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:37,984 INFO L225 Difference]: With dead ends: 337 [2023-11-25 00:11:37,984 INFO L226 Difference]: Without dead ends: 337 [2023-11-25 00:11:37,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:11:37,986 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 162 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:37,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 661 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 177 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2023-11-25 00:11:37,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-11-25 00:11:38,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 207. [2023-11-25 00:11:38,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 193 states have (on average 1.3160621761658031) internal successors, (254), 200 states have internal predecessors, (254), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-25 00:11:38,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 272 transitions. [2023-11-25 00:11:38,007 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 272 transitions. Word has length 10 [2023-11-25 00:11:38,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:38,007 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 272 transitions. [2023-11-25 00:11:38,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-25 00:11:38,008 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 272 transitions. [2023-11-25 00:11:38,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-25 00:11:38,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:38,011 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:38,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-25 00:11:38,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:11:38,216 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-25 00:11:38,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:38,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1043928506, now seen corresponding path program 1 times [2023-11-25 00:11:38,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:11:38,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516834646] [2023-11-25 00:11:38,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:38,220 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 [2023-11-25 00:11:38,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:11:38,221 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:11:38,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-25 00:11:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:38,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:11:38,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:11:38,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:11:38,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:11:38,770 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:11:38,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516834646] [2023-11-25 00:11:38,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516834646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:38,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:38,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:11:38,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282073382] [2023-11-25 00:11:38,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:38,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:11:38,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:11:38,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:11:38,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:11:38,773 INFO L87 Difference]: Start difference. First operand 207 states and 272 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2023-11-25 00:11:38,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:38,937 INFO L93 Difference]: Finished difference Result 211 states and 268 transitions. [2023-11-25 00:11:38,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:11:38,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2023-11-25 00:11:38,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:38,940 INFO L225 Difference]: With dead ends: 211 [2023-11-25 00:11:38,940 INFO L226 Difference]: Without dead ends: 211 [2023-11-25 00:11:38,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:11:38,942 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 36 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:38,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 690 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:11:38,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-25 00:11:38,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 210. [2023-11-25 00:11:38,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 196 states have (on average 1.2704081632653061) internal successors, (249), 203 states have internal predecessors, (249), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-25 00:11:38,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 267 transitions. [2023-11-25 00:11:38,956 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 267 transitions. Word has length 66 [2023-11-25 00:11:38,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:38,957 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 267 transitions. [2023-11-25 00:11:38,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2023-11-25 00:11:38,957 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 267 transitions. [2023-11-25 00:11:38,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-25 00:11:38,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:38,960 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:38,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-25 00:11:39,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:11:39,169 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-25 00:11:39,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:39,169 INFO L85 PathProgramCache]: Analyzing trace with hash 819799226, now seen corresponding path program 1 times [2023-11-25 00:11:39,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:11:39,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51396886] [2023-11-25 00:11:39,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:39,171 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 [2023-11-25 00:11:39,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:11:39,172 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:11:39,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-25 00:11:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:39,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:11:39,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:11:40,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:11:40,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:11:40,026 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:11:40,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51396886] [2023-11-25 00:11:40,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51396886] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:40,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:40,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:11:40,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188803321] [2023-11-25 00:11:40,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:40,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:11:40,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:11:40,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:11:40,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:11:40,028 INFO L87 Difference]: Start difference. First operand 210 states and 267 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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) [2023-11-25 00:11:40,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:40,667 INFO L93 Difference]: Finished difference Result 336 states and 429 transitions. [2023-11-25 00:11:40,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:11:40,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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 66 [2023-11-25 00:11:40,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:40,670 INFO L225 Difference]: With dead ends: 336 [2023-11-25 00:11:40,671 INFO L226 Difference]: Without dead ends: 336 [2023-11-25 00:11:40,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:11:40,672 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 113 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:40,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 550 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-25 00:11:40,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-25 00:11:40,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 318. [2023-11-25 00:11:40,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 304 states have (on average 1.2598684210526316) internal successors, (383), 311 states have internal predecessors, (383), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-25 00:11:40,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 401 transitions. [2023-11-25 00:11:40,690 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 401 transitions. Word has length 66 [2023-11-25 00:11:40,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:40,690 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 401 transitions. [2023-11-25 00:11:40,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 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) [2023-11-25 00:11:40,691 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 401 transitions. [2023-11-25 00:11:40,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-25 00:11:40,694 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:40,695 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:40,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-25 00:11:40,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:11:40,904 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-25 00:11:40,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:40,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1510710663, now seen corresponding path program 1 times [2023-11-25 00:11:40,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:11:40,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285473052] [2023-11-25 00:11:40,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:40,906 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 [2023-11-25 00:11:40,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:11:40,908 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:11:40,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-25 00:11:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:41,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:11:41,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:11:41,541 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:11:41,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:11:41,541 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:11:41,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285473052] [2023-11-25 00:11:41,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285473052] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:41,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:41,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:11:41,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543398933] [2023-11-25 00:11:41,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:41,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:11:41,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:11:41,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:11:41,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:11:41,545 INFO L87 Difference]: Start difference. First operand 318 states and 401 transitions. Second operand has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:11:41,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:41,644 INFO L93 Difference]: Finished difference Result 320 states and 404 transitions. [2023-11-25 00:11:41,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:11:41,645 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 79 [2023-11-25 00:11:41,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:41,648 INFO L225 Difference]: With dead ends: 320 [2023-11-25 00:11:41,648 INFO L226 Difference]: Without dead ends: 320 [2023-11-25 00:11:41,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:11:41,650 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 1 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:41,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 758 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:11:41,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-11-25 00:11:41,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2023-11-25 00:11:41,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 305 states have (on average 1.2622950819672132) internal successors, (385), 313 states have internal predecessors, (385), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-25 00:11:41,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 404 transitions. [2023-11-25 00:11:41,676 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 404 transitions. Word has length 79 [2023-11-25 00:11:41,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:41,677 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 404 transitions. [2023-11-25 00:11:41,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-25 00:11:41,677 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 404 transitions. [2023-11-25 00:11:41,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-25 00:11:41,680 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:41,681 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:41,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-25 00:11:41,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:11:41,892 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-25 00:11:41,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:41,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1733402191, now seen corresponding path program 1 times [2023-11-25 00:11:41,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:11:41,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417701065] [2023-11-25 00:11:41,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:41,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:11:41,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:11:41,895 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:11:41,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-25 00:11:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:42,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:11:42,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:11:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-25 00:11:42,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:11:42,742 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-25 00:11:42,743 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:11:42,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417701065] [2023-11-25 00:11:42,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417701065] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:11:42,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [493389475] [2023-11-25 00:11:42,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:42,744 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-25 00:11:42,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-25 00:11:42,750 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-25 00:11:42,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-25 00:11:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:43,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:11:43,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:11:43,779 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-25 00:11:43,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:11:43,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [493389475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:43,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-25 00:11:43,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2023-11-25 00:11:43,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273890935] [2023-11-25 00:11:43,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:43,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:11:43,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:11:43,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:11:43,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-25 00:11:43,782 INFO L87 Difference]: Start difference. First operand 320 states and 404 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-25 00:11:46,410 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 [] [2023-11-25 00:11:48,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:51,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:52,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:52,029 INFO L93 Difference]: Finished difference Result 433 states and 564 transitions. [2023-11-25 00:11:52,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-25 00:11:52,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2023-11-25 00:11:52,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:52,033 INFO L225 Difference]: With dead ends: 433 [2023-11-25 00:11:52,033 INFO L226 Difference]: Without dead ends: 433 [2023-11-25 00:11:52,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-25 00:11:52,034 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 501 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:52,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 473 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 83 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2023-11-25 00:11:52,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-11-25 00:11:52,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 405. [2023-11-25 00:11:52,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 390 states have (on average 1.2743589743589743) internal successors, (497), 398 states have internal predecessors, (497), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-25 00:11:52,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 516 transitions. [2023-11-25 00:11:52,064 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 516 transitions. Word has length 81 [2023-11-25 00:11:52,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:52,065 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 516 transitions. [2023-11-25 00:11:52,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-25 00:11:52,065 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 516 transitions. [2023-11-25 00:11:52,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-25 00:11:52,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:52,071 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:52,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-25 00:11:52,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-25 00:11:52,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:11:52,482 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-25 00:11:52,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:52,483 INFO L85 PathProgramCache]: Analyzing trace with hash -739833239, now seen corresponding path program 1 times [2023-11-25 00:11:52,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:11:52,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487781908] [2023-11-25 00:11:52,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:52,483 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 [2023-11-25 00:11:52,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:11:52,485 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:11:52,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-25 00:11:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:53,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:11:53,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:11:53,140 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-25 00:11:53,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:11:53,238 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-25 00:11:53,238 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:11:53,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487781908] [2023-11-25 00:11:53,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487781908] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:11:53,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1628815663] [2023-11-25 00:11:53,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:53,239 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-25 00:11:53,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-25 00:11:53,245 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-25 00:11:53,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-25 00:11:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:54,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:11:54,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:11:54,244 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-25 00:11:54,244 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:11:54,316 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-25 00:11:54,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1628815663] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:11:54,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938294737] [2023-11-25 00:11:54,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:54,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:11:54,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:11:54,325 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:11:54,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-25 00:11:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:54,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-25 00:11:54,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:11:54,987 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:11:54,988 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:11:54,989 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-25 00:11:54,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-25 00:11:55,126 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-25 00:11:55,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-25 00:11:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-25 00:11:55,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:11:55,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938294737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:55,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2023-11-25 00:11:55,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5, 5, 5] total 10 [2023-11-25 00:11:55,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350095199] [2023-11-25 00:11:55,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:55,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:11:55,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:11:55,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:11:55,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-25 00:11:55,162 INFO L87 Difference]: Start difference. First operand 405 states and 516 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-25 00:11:59,562 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 [] [2023-11-25 00:12:02,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:12:02,819 INFO L93 Difference]: Finished difference Result 483 states and 618 transitions. [2023-11-25 00:12:02,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:12:02,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2023-11-25 00:12:02,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:12:02,826 INFO L225 Difference]: With dead ends: 483 [2023-11-25 00:12:02,827 INFO L226 Difference]: Without dead ends: 483 [2023-11-25 00:12:02,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-25 00:12:02,828 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 135 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:12:02,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 655 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2023-11-25 00:12:02,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-25 00:12:02,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 407. [2023-11-25 00:12:02,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 392 states have (on average 1.2729591836734695) internal successors, (499), 400 states have internal predecessors, (499), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-25 00:12:02,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 518 transitions. [2023-11-25 00:12:02,850 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 518 transitions. Word has length 86 [2023-11-25 00:12:02,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:12:02,850 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 518 transitions. [2023-11-25 00:12:02,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-25 00:12:02,851 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 518 transitions. [2023-11-25 00:12:02,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-25 00:12:02,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:12:02,854 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:12:02,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-25 00:12:03,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-25 00:12:03,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-25 00:12:03,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:12:03,464 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-25 00:12:03,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:12:03,465 INFO L85 PathProgramCache]: Analyzing trace with hash -24096235, now seen corresponding path program 1 times [2023-11-25 00:12:03,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:12:03,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118448304] [2023-11-25 00:12:03,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:12:03,466 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 [2023-11-25 00:12:03,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:12:03,467 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:12:03,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-25 00:12:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:12:04,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:12:04,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:12:04,187 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-25 00:12:04,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:12:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-25 00:12:04,311 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:12:04,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118448304] [2023-11-25 00:12:04,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118448304] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:12:04,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1725818207] [2023-11-25 00:12:04,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:12:04,311 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-25 00:12:04,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-25 00:12:04,313 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-25 00:12:04,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-25 00:12:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:12:05,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-25 00:12:05,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:12:05,228 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-25 00:12:05,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:12:05,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1725818207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:12:05,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-25 00:12:05,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2023-11-25 00:12:05,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788076202] [2023-11-25 00:12:05,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:12:05,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:12:05,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:12:05,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:12:05,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-25 00:12:05,231 INFO L87 Difference]: Start difference. First operand 407 states and 518 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-25 00:12:05,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:12:05,397 INFO L93 Difference]: Finished difference Result 470 states and 581 transitions. [2023-11-25 00:12:05,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:12:05,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 126 [2023-11-25 00:12:05,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:12:05,403 INFO L225 Difference]: With dead ends: 470 [2023-11-25 00:12:05,403 INFO L226 Difference]: Without dead ends: 470 [2023-11-25 00:12:05,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-25 00:12:05,405 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 8 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:12:05,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 458 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-25 00:12:05,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-11-25 00:12:05,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 467. [2023-11-25 00:12:05,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 452 states have (on average 1.2367256637168142) internal successors, (559), 460 states have internal predecessors, (559), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-25 00:12:05,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 578 transitions. [2023-11-25 00:12:05,427 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 578 transitions. Word has length 126 [2023-11-25 00:12:05,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:12:05,428 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 578 transitions. [2023-11-25 00:12:05,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-25 00:12:05,428 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 578 transitions. [2023-11-25 00:12:05,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-25 00:12:05,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:12:05,432 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:12:05,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-25 00:12:05,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-25 00:12:05,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt [2023-11-25 00:12:05,844 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-25 00:12:05,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:12:05,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1139276569, now seen corresponding path program 1 times [2023-11-25 00:12:05,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:12:05,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956557313] [2023-11-25 00:12:05,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:12:05,845 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 [2023-11-25 00:12:05,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:12:05,847 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:12:05,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-25 00:12:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:12:06,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:12:06,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:12:06,708 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-25 00:12:06,709 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:12:06,840 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-25 00:12:06,840 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-25 00:12:06,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956557313] [2023-11-25 00:12:06,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956557313] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:12:06,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [222540215] [2023-11-25 00:12:06,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:12:06,841 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-25 00:12:06,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-25 00:12:06,842 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-25 00:12:06,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-25 00:12:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:12:07,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-25 00:12:07,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:12:07,781 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-25 00:12:07,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:12:07,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [222540215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:12:07,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-25 00:12:07,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2023-11-25 00:12:07,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625011712] [2023-11-25 00:12:07,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:12:07,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:12:07,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-25 00:12:07,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:12:07,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-25 00:12:07,784 INFO L87 Difference]: Start difference. First operand 467 states and 578 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-25 00:12:07,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:12:07,966 INFO L93 Difference]: Finished difference Result 419 states and 497 transitions. [2023-11-25 00:12:07,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:12:07,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 126 [2023-11-25 00:12:07,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:12:07,971 INFO L225 Difference]: With dead ends: 419 [2023-11-25 00:12:07,972 INFO L226 Difference]: Without dead ends: 419 [2023-11-25 00:12:07,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-25 00:12:07,975 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 39 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:12:07,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 654 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:12:07,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-11-25 00:12:07,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 416. [2023-11-25 00:12:07,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 401 states have (on average 1.1845386533665836) internal successors, (475), 409 states have internal predecessors, (475), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-25 00:12:08,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 494 transitions. [2023-11-25 00:12:08,000 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 494 transitions. Word has length 126 [2023-11-25 00:12:08,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:12:08,002 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 494 transitions. [2023-11-25 00:12:08,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-25 00:12:08,003 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 494 transitions. [2023-11-25 00:12:08,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-25 00:12:08,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:12:08,006 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:12:08,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-11-25 00:12:08,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-11-25 00:12:08,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-25 00:12:08,419 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-25 00:12:08,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:12:08,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1131754549, now seen corresponding path program 1 times [2023-11-25 00:12:08,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-25 00:12:08,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106241696] [2023-11-25 00:12:08,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:12:08,420 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 [2023-11-25 00:12:08,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-25 00:12:08,421 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-25 00:12:08,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5ac968-af16-4658-aeb0-81ceb071cf86/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process