./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.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_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 f4a8b24485e53fece96b44fdc12e6f161e1bbffda2cd597a930f4925e148dc01 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:49:30,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:49:30,438 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2023-11-24 23:49:30,445 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:49:30,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:49:30,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:49:30,479 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:49:30,480 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:49:30,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:49:30,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:49:30,482 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:49:30,482 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:49:30,483 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:49:30,483 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:49:30,484 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:49:30,487 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:49:30,489 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:49:30,493 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:49:30,494 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:49:30,494 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:49:30,496 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:49:30,497 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:49:30,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:49:30,499 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:49:30,500 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:49:30,500 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:49:30,501 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:49:30,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:49:30,502 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:49:30,502 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:49:30,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:49:30,504 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:49:30,504 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:49:30,505 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:49:30,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:49:30,505 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:49:30,505 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:49:30,506 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:49:30,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:49:30,506 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:49:30,506 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:49:30,507 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:49:30,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:49:30,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:49:30,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:49:30,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:49:30,508 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:49:30,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:49:30,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:49:30,509 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:49:30,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:49:30,509 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_ee579243-aeda-4a32-aaf9-00d1c2fba084/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4a8b24485e53fece96b44fdc12e6f161e1bbffda2cd597a930f4925e148dc01 [2023-11-24 23:49:30,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:49:30,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:49:30,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:49:30,801 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:49:30,804 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:49:30,806 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i [2023-11-24 23:49:33,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:49:34,364 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:49:34,364 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i [2023-11-24 23:49:34,395 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/data/868810f81/2a59b67b660c44ec985822eacb92d946/FLAGf059cde0e [2023-11-24 23:49:34,411 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/data/868810f81/2a59b67b660c44ec985822eacb92d946 [2023-11-24 23:49:34,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:49:34,418 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:49:34,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:49:34,424 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:49:34,429 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:49:34,430 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:49:34" (1/1) ... [2023-11-24 23:49:34,431 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73adc13c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:34, skipping insertion in model container [2023-11-24 23:49:34,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:49:34" (1/1) ... [2023-11-24 23:49:34,530 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:49:35,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:49:35,432 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) [2023-11-24 23:49:35,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b555f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:35, skipping insertion in model container [2023-11-24 23:49:35,433 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:49:35,434 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 23:49:35,435 INFO L158 Benchmark]: Toolchain (without parser) took 1016.35ms. Allocated memory is still 146.8MB. Free memory was 99.4MB in the beginning and 105.4MB in the end (delta: -6.1MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2023-11-24 23:49:35,436 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 100.7MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:49:35,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1010.02ms. Allocated memory is still 146.8MB. Free memory was 99.0MB in the beginning and 105.4MB in the end (delta: -6.4MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2023-11-24 23:49:35,443 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 100.7MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1010.02ms. Allocated memory is still 146.8MB. Free memory was 99.0MB in the beginning and 105.4MB in the end (delta: -6.4MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2221]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 f4a8b24485e53fece96b44fdc12e6f161e1bbffda2cd597a930f4925e148dc01 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:49:37,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:49:38,100 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2023-11-24 23:49:38,109 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:49:38,110 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:49:38,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:49:38,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:49:38,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:49:38,158 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:49:38,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:49:38,163 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:49:38,163 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:49:38,164 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:49:38,166 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:49:38,166 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:49:38,166 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:49:38,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:49:38,168 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:49:38,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:49:38,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:49:38,170 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:49:38,171 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:49:38,171 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:49:38,171 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:49:38,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:49:38,172 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:49:38,173 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:49:38,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:49:38,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:49:38,174 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:49:38,175 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:49:38,175 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:49:38,176 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:49:38,176 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:49:38,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:49:38,176 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:49:38,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:49:38,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:49:38,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:49:38,178 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:49:38,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:49:38,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:49:38,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:49:38,179 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:49:38,179 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:49:38,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:49:38,180 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:49:38,180 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:49:38,180 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_ee579243-aeda-4a32-aaf9-00d1c2fba084/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4a8b24485e53fece96b44fdc12e6f161e1bbffda2cd597a930f4925e148dc01 [2023-11-24 23:49:38,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:49:38,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:49:38,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:49:38,645 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:49:38,645 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:49:38,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i [2023-11-24 23:49:41,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:49:42,322 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:49:42,323 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-1.i [2023-11-24 23:49:42,346 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/data/c45b467c4/4f9d2c4d54e24cf0933d16505d995c0e/FLAG01fe4d8a5 [2023-11-24 23:49:42,360 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/data/c45b467c4/4f9d2c4d54e24cf0933d16505d995c0e [2023-11-24 23:49:42,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:49:42,364 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:49:42,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:49:42,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:49:42,371 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:49:42,372 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:49:42" (1/1) ... [2023-11-24 23:49:42,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e1084d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:42, skipping insertion in model container [2023-11-24 23:49:42,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:49:42" (1/1) ... [2023-11-24 23:49:42,469 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:49:43,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:49:43,467 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 23:49:43,492 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:49:43,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:49:43,709 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:49:43,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:49:43,912 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:49:43,920 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:49:43,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:43 WrapperNode [2023-11-24 23:49:43,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:49:43,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:49:43,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:49:43,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:49:43,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:43" (1/1) ... [2023-11-24 23:49:43,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:43" (1/1) ... [2023-11-24 23:49:44,101 INFO L138 Inliner]: procedures = 180, calls = 732, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2867 [2023-11-24 23:49:44,102 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:49:44,102 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:49:44,103 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:49:44,103 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:49:44,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:43" (1/1) ... [2023-11-24 23:49:44,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:43" (1/1) ... [2023-11-24 23:49:44,138 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:43" (1/1) ... [2023-11-24 23:49:44,138 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:43" (1/1) ... [2023-11-24 23:49:44,234 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:43" (1/1) ... [2023-11-24 23:49:44,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:43" (1/1) ... [2023-11-24 23:49:44,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:43" (1/1) ... [2023-11-24 23:49:44,314 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:43" (1/1) ... [2023-11-24 23:49:44,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:49:44,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:49:44,337 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:49:44,338 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:49:44,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:43" (1/1) ... [2023-11-24 23:49:44,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:49:44,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:49:44,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:49:44,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:49:44,414 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-24 23:49:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-24 23:49:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-24 23:49:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:49:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:49:44,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:49:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:49:44,450 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:49:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:49:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:49:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:49:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:49:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 23:49:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:49:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:49:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:49:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:49:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:49:44,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:49:44,724 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:49:44,727 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:49:54,262 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:49:54,346 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:49:54,347 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-24 23:49:54,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:49:54 BoogieIcfgContainer [2023-11-24 23:49:54,349 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:49:54,351 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:49:54,352 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:49:54,355 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:49:54,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:49:42" (1/3) ... [2023-11-24 23:49:54,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33fc5604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:49:54, skipping insertion in model container [2023-11-24 23:49:54,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:49:43" (2/3) ... [2023-11-24 23:49:54,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33fc5604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:49:54, skipping insertion in model container [2023-11-24 23:49:54,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:49:54" (3/3) ... [2023-11-24 23:49:54,361 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test9-1.i [2023-11-24 23:49:54,381 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:49:54,382 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 23:49:54,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:49:54,489 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;@5c8c4bfd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:49:54,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 23:49:54,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 1172 states, 661 states have (on average 1.91981845688351) internal successors, (1269), 1165 states have internal predecessors, (1269), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2023-11-24 23:49:54,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:49:54,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:54,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 23:49:54,508 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 23:49:54,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:54,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1533051042, now seen corresponding path program 1 times [2023-11-24 23:49:54,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:49:54,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637112219] [2023-11-24 23:49:54,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:54,528 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 [2023-11-24 23:49:54,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:49:54,532 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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) [2023-11-24 23:49:54,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:49:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:49:54,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:49:54,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:49:54,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:49:54,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:49:54,783 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:49:54,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637112219] [2023-11-24 23:49:54,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637112219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:49:54,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:49:54,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:49:54,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157807892] [2023-11-24 23:49:54,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:49:54,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:49:54,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:49:54,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:49:54,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:49:54,836 INFO L87 Difference]: Start difference. First operand has 1172 states, 661 states have (on average 1.91981845688351) internal successors, (1269), 1165 states have internal predecessors, (1269), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-24 23:49:55,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:49:55,018 INFO L93 Difference]: Finished difference Result 1170 states and 2216 transitions. [2023-11-24 23:49:55,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:49:55,021 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-24 23:49:55,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:49:55,059 INFO L225 Difference]: With dead ends: 1170 [2023-11-24 23:49:55,060 INFO L226 Difference]: Without dead ends: 1169 [2023-11-24 23:49:55,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:49:55,065 INFO L413 NwaCegarLoop]: 2212 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, 2212 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 [2023-11-24 23:49:55,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2212 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:49:55,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2023-11-24 23:49:55,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1169. [2023-11-24 23:49:55,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 660 states have (on average 1.8287878787878789) internal successors, (1207), 1162 states have internal predecessors, (1207), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-24 23:49:55,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 2215 transitions. [2023-11-24 23:49:55,584 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 2215 transitions. Word has length 6 [2023-11-24 23:49:55,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:49:55,584 INFO L495 AbstractCegarLoop]: Abstraction has 1169 states and 2215 transitions. [2023-11-24 23:49:55,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-24 23:49:55,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 2215 transitions. [2023-11-24 23:49:55,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:49:55,585 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:55,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:49:55,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:49:55,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:49:55,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 23:49:55,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:55,790 INFO L85 PathProgramCache]: Analyzing trace with hash -111625012, now seen corresponding path program 1 times [2023-11-24 23:49:55,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:49:55,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368654818] [2023-11-24 23:49:55,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:55,791 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 [2023-11-24 23:49:55,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:49:55,793 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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) [2023-11-24 23:49:55,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:49:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:49:55,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:49:55,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:49:56,046 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:56,047 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:56,048 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:56,064 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 [2023-11-24 23:49:56,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:49:56,201 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 [2023-11-24 23:49:56,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:49:56,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:49:56,230 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:49:56,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368654818] [2023-11-24 23:49:56,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368654818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:49:56,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:49:56,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:49:56,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496833601] [2023-11-24 23:49:56,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:49:56,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:49:56,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:49:56,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:49:56,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:49:56,239 INFO L87 Difference]: Start difference. First operand 1169 states and 2215 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:50:00,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:50:06,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:50:07,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:50:07,416 INFO L93 Difference]: Finished difference Result 2273 states and 4352 transitions. [2023-11-24 23:50:07,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:50:07,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-24 23:50:07,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:50:07,447 INFO L225 Difference]: With dead ends: 2273 [2023-11-24 23:50:07,447 INFO L226 Difference]: Without dead ends: 2273 [2023-11-24 23:50:07,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:50:07,451 INFO L413 NwaCegarLoop]: 2222 mSDtfsCounter, 1132 mSDsluCounter, 3866 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 6088 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:50:07,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 6088 Invalid, 653 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 650 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2023-11-24 23:50:07,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2023-11-24 23:50:08,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 1171. [2023-11-24 23:50:08,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 662 states have (on average 1.8262839879154078) internal successors, (1209), 1164 states have internal predecessors, (1209), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-24 23:50:08,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 2217 transitions. [2023-11-24 23:50:08,211 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 2217 transitions. Word has length 8 [2023-11-24 23:50:08,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:50:08,212 INFO L495 AbstractCegarLoop]: Abstraction has 1171 states and 2217 transitions. [2023-11-24 23:50:08,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:50:08,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 2217 transitions. [2023-11-24 23:50:08,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-24 23:50:08,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:08,216 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] [2023-11-24 23:50:08,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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)] Forceful destruction successful, exit code 0 [2023-11-24 23:50:08,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:50:08,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 23:50:08,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:08,420 INFO L85 PathProgramCache]: Analyzing trace with hash -208302082, now seen corresponding path program 1 times [2023-11-24 23:50:08,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:50:08,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747251150] [2023-11-24 23:50:08,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:08,422 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 [2023-11-24 23:50:08,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:50:08,424 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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) [2023-11-24 23:50:08,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:50:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:08,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:50:08,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:50:08,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:50:08,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:50:08,974 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:50:08,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747251150] [2023-11-24 23:50:08,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747251150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:50:08,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:50:08,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:50:08,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326398097] [2023-11-24 23:50:08,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:50:08,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:50:08,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:50:08,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:50:08,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:50:08,978 INFO L87 Difference]: Start difference. First operand 1171 states and 2217 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2023-11-24 23:50:09,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:50:09,203 INFO L93 Difference]: Finished difference Result 1175 states and 2213 transitions. [2023-11-24 23:50:09,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:50:09,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2023-11-24 23:50:09,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:50:09,214 INFO L225 Difference]: With dead ends: 1175 [2023-11-24 23:50:09,215 INFO L226 Difference]: Without dead ends: 1175 [2023-11-24 23:50:09,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:50:09,216 INFO L413 NwaCegarLoop]: 2183 mSDtfsCounter, 36 mSDsluCounter, 4342 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 6525 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:50:09,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 6525 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 23:50:09,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2023-11-24 23:50:09,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1174. [2023-11-24 23:50:09,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 665 states have (on average 1.8105263157894738) internal successors, (1204), 1167 states have internal predecessors, (1204), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-24 23:50:09,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 2212 transitions. [2023-11-24 23:50:09,398 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 2212 transitions. Word has length 64 [2023-11-24 23:50:09,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:50:09,399 INFO L495 AbstractCegarLoop]: Abstraction has 1174 states and 2212 transitions. [2023-11-24 23:50:09,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2023-11-24 23:50:09,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 2212 transitions. [2023-11-24 23:50:09,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-24 23:50:09,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:09,407 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] [2023-11-24 23:50:09,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:50:09,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:50:09,616 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 23:50:09,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:09,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1545590642, now seen corresponding path program 1 times [2023-11-24 23:50:09,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:50:09,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135881367] [2023-11-24 23:50:09,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:09,619 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 [2023-11-24 23:50:09,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:50:09,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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) [2023-11-24 23:50:09,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:50:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:10,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:50:10,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:50:10,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:50:10,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:50:10,457 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:50:10,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135881367] [2023-11-24 23:50:10,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135881367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:50:10,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:50:10,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:50:10,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962277685] [2023-11-24 23:50:10,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:50:10,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:50:10,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:50:10,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:50:10,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:50:10,460 INFO L87 Difference]: Start difference. First operand 1174 states and 2212 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-11-24 23:50:11,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:50:11,405 INFO L93 Difference]: Finished difference Result 2265 states and 4320 transitions. [2023-11-24 23:50:11,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:50:11,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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 64 [2023-11-24 23:50:11,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:50:11,426 INFO L225 Difference]: With dead ends: 2265 [2023-11-24 23:50:11,426 INFO L226 Difference]: Without dead ends: 2265 [2023-11-24 23:50:11,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:50:11,427 INFO L413 NwaCegarLoop]: 2261 mSDtfsCounter, 1071 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 4441 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:50:11,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1573 Valid, 4441 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-24 23:50:11,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2023-11-24 23:50:11,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2261. [2023-11-24 23:50:11,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 1252 states have (on average 1.8442492012779552) internal successors, (2309), 2254 states have internal predecessors, (2309), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-24 23:50:11,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 4317 transitions. [2023-11-24 23:50:11,740 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 4317 transitions. Word has length 64 [2023-11-24 23:50:11,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:50:11,741 INFO L495 AbstractCegarLoop]: Abstraction has 2261 states and 4317 transitions. [2023-11-24 23:50:11,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-11-24 23:50:11,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 4317 transitions. [2023-11-24 23:50:11,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-24 23:50:11,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:11,743 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] [2023-11-24 23:50:11,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:50:11,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:50:11,951 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 23:50:11,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:11,952 INFO L85 PathProgramCache]: Analyzing trace with hash 881030379, now seen corresponding path program 1 times [2023-11-24 23:50:11,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:50:11,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416635727] [2023-11-24 23:50:11,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:11,954 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 [2023-11-24 23:50:11,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:50:11,955 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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) [2023-11-24 23:50:11,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:50:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:12,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:50:12,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:50:12,657 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:50:12,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:50:12,658 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:50:12,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416635727] [2023-11-24 23:50:12,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416635727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:50:12,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:50:12,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:50:12,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512514948] [2023-11-24 23:50:12,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:50:12,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:50:12,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:50:12,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:50:12,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:50:12,662 INFO L87 Difference]: Start difference. First operand 2261 states and 4317 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 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) [2023-11-24 23:50:12,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:50:12,811 INFO L93 Difference]: Finished difference Result 2263 states and 4320 transitions. [2023-11-24 23:50:12,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:50:12,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 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 77 [2023-11-24 23:50:12,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:50:12,831 INFO L225 Difference]: With dead ends: 2263 [2023-11-24 23:50:12,831 INFO L226 Difference]: Without dead ends: 2263 [2023-11-24 23:50:12,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:50:12,833 INFO L413 NwaCegarLoop]: 2199 mSDtfsCounter, 1 mSDsluCounter, 4394 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6593 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 [2023-11-24 23:50:12,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6593 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:50:12,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2023-11-24 23:50:13,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 2263. [2023-11-24 23:50:13,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2263 states, 1253 states have (on average 1.8443735035913806) internal successors, (2311), 2256 states have internal predecessors, (2311), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 3 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-24 23:50:13,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 4320 transitions. [2023-11-24 23:50:13,244 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 4320 transitions. Word has length 77 [2023-11-24 23:50:13,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:50:13,245 INFO L495 AbstractCegarLoop]: Abstraction has 2263 states and 4320 transitions. [2023-11-24 23:50:13,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 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) [2023-11-24 23:50:13,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 4320 transitions. [2023-11-24 23:50:13,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 23:50:13,250 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:13,251 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] [2023-11-24 23:50:13,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:50:13,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:50:13,460 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 23:50:13,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:13,461 INFO L85 PathProgramCache]: Analyzing trace with hash -947572531, now seen corresponding path program 1 times [2023-11-24 23:50:13,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:50:13,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164162677] [2023-11-24 23:50:13,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:13,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:50:13,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:50:13,464 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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) [2023-11-24 23:50:13,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:50:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:14,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:50:14,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:50:14,173 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:50:14,173 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:50:14,305 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:50:14,305 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:50:14,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164162677] [2023-11-24 23:50:14,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164162677] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:50:14,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1375303320] [2023-11-24 23:50:14,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:14,306 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:50:14,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:50:14,312 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:50:14,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-24 23:50:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:15,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:50:15,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:50:15,308 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:50:15,309 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:50:15,365 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:50:15,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1375303320] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:50:15,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295642035] [2023-11-24 23:50:15,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:50:15,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:50:15,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:50:15,370 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:50:15,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-24 23:50:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:50:15,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:50:15,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:50:16,002 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:50:16,004 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:50:16,130 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:50:16,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295642035] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:50:16,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-24 23:50:16,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2023-11-24 23:50:16,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965255295] [2023-11-24 23:50:16,131 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-24 23:50:16,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-24 23:50:16,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:50:16,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-24 23:50:16,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-11-24 23:50:16,134 INFO L87 Difference]: Start difference. First operand 2263 states and 4320 transitions. Second operand has 11 states, 8 states have (on average 10.75) internal successors, (86), 11 states have internal predecessors, (86), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-24 23:50:16,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:50:16,747 INFO L93 Difference]: Finished difference Result 2275 states and 4339 transitions. [2023-11-24 23:50:16,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-24 23:50:16,748 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 10.75) internal successors, (86), 11 states have internal predecessors, (86), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 79 [2023-11-24 23:50:16,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:50:16,768 INFO L225 Difference]: With dead ends: 2275 [2023-11-24 23:50:16,768 INFO L226 Difference]: Without dead ends: 2275 [2023-11-24 23:50:16,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2023-11-24 23:50:16,770 INFO L413 NwaCegarLoop]: 2198 mSDtfsCounter, 17 mSDsluCounter, 8775 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 10973 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:50:16,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 10973 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 23:50:16,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2023-11-24 23:50:17,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2273. [2023-11-24 23:50:17,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1262 states have (on average 1.8446909667194928) internal successors, (2328), 2265 states have internal predecessors, (2328), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-24 23:50:17,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 4337 transitions. [2023-11-24 23:50:17,309 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 4337 transitions. Word has length 79 [2023-11-24 23:50:17,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:50:17,310 INFO L495 AbstractCegarLoop]: Abstraction has 2273 states and 4337 transitions. [2023-11-24 23:50:17,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 10.75) internal successors, (86), 11 states have internal predecessors, (86), 2 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-24 23:50:17,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 4337 transitions. [2023-11-24 23:50:17,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-24 23:50:17,311 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:50:17,312 INFO L195 NwaCegarLoop]: trace histogram [8, 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] [2023-11-24 23:50:17,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-24 23:50:17,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-24 23:50:17,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:50:17,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 [2023-11-24 23:50:17,925 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 23:50:17,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:50:17,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1279830037, now seen corresponding path program 2 times [2023-11-24 23:50:17,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:50:17,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175334608] [2023-11-24 23:50:17,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 23:50:17,927 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 [2023-11-24 23:50:17,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:50:17,929 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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) [2023-11-24 23:50:17,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee579243-aeda-4a32-aaf9-00d1c2fba084/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 (10)] Waiting until timeout for monitored process [2023-11-24 23:50:18,356 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-24 23:50:18,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 23:50:18,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:50:18,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:50:18,428 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:50:18,429 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:50:18,430 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:50:18,436 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 [2023-11-24 23:50:18,505 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:50:18,506 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 [2023-11-24 23:50:18,523 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-24 23:50:18,523 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:50:18,523 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:50:18,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [175334608] [2023-11-24 23:50:18,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [175334608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:50:18,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:50:18,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:50:18,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092640386] [2023-11-24 23:50:18,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:50:18,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:50:18,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:50:18,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:50:18,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:50:18,527 INFO L87 Difference]: Start difference. First operand 2273 states and 4337 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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) [2023-11-24 23:50:22,997 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 []