./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5 --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 f947716b74eb4e4932bd5d636c4998c6e0af4555d045ab3a1d1cd79c9fa77ead --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:04:03,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:04:03,499 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2023-11-21 19:04:03,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:04:03,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:04:03,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:04:03,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:04:03,529 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:04:03,529 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:04:03,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:04:03,531 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:04:03,531 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:04:03,532 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:04:03,532 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:04:03,533 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:04:03,534 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:04:03,534 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:04:03,535 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:04:03,535 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:04:03,536 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:04:03,537 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:04:03,537 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:04:03,538 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 19:04:03,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 19:04:03,545 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:04:03,546 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:04:03,547 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:04:03,547 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:04:03,548 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:04:03,548 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:04:03,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:04:03,549 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 19:04:03,555 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 19:04:03,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:04:03,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:04:03,556 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:04:03,557 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:04:03,557 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:04:03,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:04:03,558 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:04:03,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:04:03,559 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:04:03,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:04:03,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:04:03,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:04:03,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:04:03,563 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:04:03,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:04:03,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:04:03,563 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:04:03,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:04:03,564 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_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f947716b74eb4e4932bd5d636c4998c6e0af4555d045ab3a1d1cd79c9fa77ead [2023-11-21 19:04:03,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:04:03,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:04:03,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:04:03,877 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:04:03,877 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:04:03,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i [2023-11-21 19:04:07,069 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:04:07,492 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:04:07,493 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i [2023-11-21 19:04:07,514 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/data/d04e204e4/bbbfc3adab9b4652a3911db307fef6de/FLAG835f6a651 [2023-11-21 19:04:07,536 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/data/d04e204e4/bbbfc3adab9b4652a3911db307fef6de [2023-11-21 19:04:07,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:04:07,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:04:07,541 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:04:07,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:04:07,552 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:04:07,554 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:04:07" (1/1) ... [2023-11-21 19:04:07,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4161b068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:07, skipping insertion in model container [2023-11-21 19:04:07,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:04:07" (1/1) ... [2023-11-21 19:04:07,639 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:04:07,946 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:04:08,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:04:08,359 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) [2023-11-21 19:04:08,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@55753b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:08, skipping insertion in model container [2023-11-21 19:04:08,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:04:08,361 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 19:04:08,364 INFO L158 Benchmark]: Toolchain (without parser) took 822.54ms. Allocated memory is still 161.5MB. Free memory was 127.0MB in the beginning and 110.3MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 19:04:08,365 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 125.8MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:04:08,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 819.81ms. Allocated memory is still 161.5MB. Free memory was 126.4MB in the beginning and 110.3MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 19:04:08,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 125.8MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 819.81ms. Allocated memory is still 161.5MB. Free memory was 126.4MB in the beginning and 110.3MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 738]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5 --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 f947716b74eb4e4932bd5d636c4998c6e0af4555d045ab3a1d1cd79c9fa77ead --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:04:11,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:04:11,169 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2023-11-21 19:04:11,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:04:11,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:04:11,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:04:11,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:04:11,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:04:11,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:04:11,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:04:11,213 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:04:11,213 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:04:11,214 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:04:11,214 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:04:11,215 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:04:11,216 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:04:11,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 19:04:11,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 19:04:11,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:04:11,218 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:04:11,219 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:04:11,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:04:11,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:04:11,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:04:11,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:04:11,221 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 19:04:11,222 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 19:04:11,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:04:11,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:04:11,223 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:04:11,223 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 19:04:11,224 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 19:04:11,224 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:04:11,224 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:04:11,225 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:04:11,225 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:04:11,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:04:11,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 19:04:11,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:04:11,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:04:11,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:04:11,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:04:11,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:04:11,227 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 19:04:11,227 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 19:04:11,227 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:04:11,228 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:04:11,228 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:04:11,228 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_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f947716b74eb4e4932bd5d636c4998c6e0af4555d045ab3a1d1cd79c9fa77ead [2023-11-21 19:04:11,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:04:11,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:04:11,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:04:11,707 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:04:11,707 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:04:11,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i [2023-11-21 19:04:15,170 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:04:15,518 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:04:15,522 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i [2023-11-21 19:04:15,547 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/data/0ad34e0c1/54e37fbf3523478981fa90e29b7f50da/FLAGf178a7209 [2023-11-21 19:04:15,583 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/data/0ad34e0c1/54e37fbf3523478981fa90e29b7f50da [2023-11-21 19:04:15,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:04:15,591 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:04:15,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:04:15,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:04:15,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:04:15,606 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:04:15" (1/1) ... [2023-11-21 19:04:15,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63c0a6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:15, skipping insertion in model container [2023-11-21 19:04:15,608 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:04:15" (1/1) ... [2023-11-21 19:04:15,718 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:04:16,052 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:04:16,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:04:16,392 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 19:04:16,407 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:04:16,432 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:04:16,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:04:16,511 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:04:16,529 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:04:16,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:04:16,631 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:04:16,640 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:04:16,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:16 WrapperNode [2023-11-21 19:04:16,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:04:16,642 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:04:16,642 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:04:16,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:04:16,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:16" (1/1) ... [2023-11-21 19:04:16,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:16" (1/1) ... [2023-11-21 19:04:16,777 INFO L138 Inliner]: procedures = 181, calls = 178, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 585 [2023-11-21 19:04:16,778 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:04:16,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:04:16,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:04:16,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:04:16,795 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:16" (1/1) ... [2023-11-21 19:04:16,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:16" (1/1) ... [2023-11-21 19:04:16,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:16" (1/1) ... [2023-11-21 19:04:16,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:16" (1/1) ... [2023-11-21 19:04:16,854 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:16" (1/1) ... [2023-11-21 19:04:16,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:16" (1/1) ... [2023-11-21 19:04:16,864 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:16" (1/1) ... [2023-11-21 19:04:16,868 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:16" (1/1) ... [2023-11-21 19:04:16,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:04:16,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:04:16,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:04:16,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:04:16,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:16" (1/1) ... [2023-11-21 19:04:16,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:04:16,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:04:16,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:04:16,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:04:16,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-21 19:04:16,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 19:04:16,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 19:04:16,985 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 19:04:16,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:04:16,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:04:16,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:04:16,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:04:16,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:04:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:04:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 19:04:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 19:04:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:04:16,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:04:17,208 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:04:17,210 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:04:23,218 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:04:23,528 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:04:23,528 INFO L308 CfgBuilder]: Removed 31 assume(true) statements. [2023-11-21 19:04:23,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:04:23 BoogieIcfgContainer [2023-11-21 19:04:23,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:04:23,532 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:04:23,532 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:04:23,535 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:04:23,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:04:15" (1/3) ... [2023-11-21 19:04:23,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e61e995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:04:23, skipping insertion in model container [2023-11-21 19:04:23,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:04:16" (2/3) ... [2023-11-21 19:04:23,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e61e995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:04:23, skipping insertion in model container [2023-11-21 19:04:23,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:04:23" (3/3) ... [2023-11-21 19:04:23,539 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_nondet_test1-1.i [2023-11-21 19:04:23,569 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:04:23,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-21 19:04:23,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:04:23,624 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;@1450c291, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:04:23,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-21 19:04:23,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 61 states have internal predecessors, (101), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 19:04:23,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 19:04:23,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:04:23,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 19:04:23,637 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-21 19:04:23,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:04:23,643 INFO L85 PathProgramCache]: Analyzing trace with hash 633797169, now seen corresponding path program 1 times [2023-11-21 19:04:23,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:04:23,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177415478] [2023-11-21 19:04:23,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:04:23,657 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 [2023-11-21 19:04:23,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:04:23,661 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:04:23,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:04:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:04:23,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 19:04:23,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:04:23,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:04:23,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:04:23,880 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:04:23,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177415478] [2023-11-21 19:04:23,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177415478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:04:23,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:04:23,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:04:23,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331544433] [2023-11-21 19:04:23,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:04:23,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:04:23,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:04:23,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:04:23,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:04:23,927 INFO L87 Difference]: Start difference. First operand has 66 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 61 states have internal predecessors, (101), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.0) 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) [2023-11-21 19:04:28,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:04:30,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:04:32,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:04:34,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:04:36,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:04:38,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:04:38,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:04:38,507 INFO L93 Difference]: Finished difference Result 117 states and 134 transitions. [2023-11-21 19:04:38,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:04:38,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) 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 [2023-11-21 19:04:38,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:04:38,523 INFO L225 Difference]: With dead ends: 117 [2023-11-21 19:04:38,523 INFO L226 Difference]: Without dead ends: 116 [2023-11-21 19:04:38,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:04:38,528 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 53 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2023-11-21 19:04:38,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 132 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 6 Unknown, 0 Unchecked, 14.5s Time] [2023-11-21 19:04:38,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-21 19:04:38,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 65. [2023-11-21 19:04:38,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 59 states have (on average 1.152542372881356) internal successors, (68), 60 states have internal predecessors, (68), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 19:04:38,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 74 transitions. [2023-11-21 19:04:38,621 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 74 transitions. Word has length 6 [2023-11-21 19:04:38,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:04:38,633 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 74 transitions. [2023-11-21 19:04:38,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) 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) [2023-11-21 19:04:38,633 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 74 transitions. [2023-11-21 19:04:38,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 19:04:38,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:04:38,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:04:38,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:04:38,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:04:38,836 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-21 19:04:38,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:04:38,837 INFO L85 PathProgramCache]: Analyzing trace with hash -383109519, now seen corresponding path program 1 times [2023-11-21 19:04:38,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:04:38,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363708607] [2023-11-21 19:04:38,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:04:38,840 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 [2023-11-21 19:04:38,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:04:38,842 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:04:38,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:04:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:04:39,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 19:04:39,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:04:39,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:04:39,532 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:04:39,533 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:04:39,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363708607] [2023-11-21 19:04:39,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363708607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:04:39,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:04:39,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:04:39,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301553236] [2023-11-21 19:04:39,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:04:39,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:04:39,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:04:39,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:04:39,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:04:39,538 INFO L87 Difference]: Start difference. First operand 65 states and 74 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2023-11-21 19:04:42,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:04:45,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:04:47,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:04:49,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:04:51,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:04:51,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:04:51,559 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2023-11-21 19:04:51,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:04:51,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2023-11-21 19:04:51,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:04:51,571 INFO L225 Difference]: With dead ends: 79 [2023-11-21 19:04:51,571 INFO L226 Difference]: Without dead ends: 79 [2023-11-21 19:04:51,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:04:51,574 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 11 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:04:51,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 109 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 5 Unknown, 0 Unchecked, 12.0s Time] [2023-11-21 19:04:51,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-21 19:04:51,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-11-21 19:04:51,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 74 states have internal predecessors, (83), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 19:04:51,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 89 transitions. [2023-11-21 19:04:51,586 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 89 transitions. Word has length 33 [2023-11-21 19:04:51,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:04:51,587 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 89 transitions. [2023-11-21 19:04:51,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2023-11-21 19:04:51,588 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 89 transitions. [2023-11-21 19:04:51,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-21 19:04:51,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:04:51,590 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 19:04:51,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:04:51,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:04:51,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-21 19:04:51,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:04:51,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1508453620, now seen corresponding path program 1 times [2023-11-21 19:04:51,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:04:51,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782303470] [2023-11-21 19:04:51,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:04:51,799 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 [2023-11-21 19:04:51,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:04:51,801 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:04:51,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:04:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:04:52,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 19:04:52,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:04:52,430 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:04:52,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:04:52,434 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:04:52,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782303470] [2023-11-21 19:04:52,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782303470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:04:52,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:04:52,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 19:04:52,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815921863] [2023-11-21 19:04:52,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:04:52,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:04:52,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:04:52,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:04:52,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:04:52,440 INFO L87 Difference]: Start difference. First operand 79 states and 89 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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) [2023-11-21 19:04:55,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:04:57,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:04:59,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:05:01,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:05:03,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:05:05,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:05:07,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:05:09,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:05:09,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:05:09,586 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2023-11-21 19:05:09,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:05:09,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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 46 [2023-11-21 19:05:09,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:05:09,601 INFO L225 Difference]: With dead ends: 81 [2023-11-21 19:05:09,601 INFO L226 Difference]: Without dead ends: 81 [2023-11-21 19:05:09,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:05:09,603 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 1 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:05:09,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 176 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 7 Unknown, 0 Unchecked, 17.1s Time] [2023-11-21 19:05:09,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-21 19:05:09,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2023-11-21 19:05:09,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 74 states have (on average 1.1486486486486487) internal successors, (85), 76 states have internal predecessors, (85), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-21 19:05:09,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 92 transitions. [2023-11-21 19:05:09,617 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 92 transitions. Word has length 46 [2023-11-21 19:05:09,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:05:09,617 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 92 transitions. [2023-11-21 19:05:09,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 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) [2023-11-21 19:05:09,618 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 92 transitions. [2023-11-21 19:05:09,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-21 19:05:09,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:05:09,621 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] [2023-11-21 19:05:09,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:05:09,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:05:09,825 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-21 19:05:09,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:05:09,826 INFO L85 PathProgramCache]: Analyzing trace with hash -838712538, now seen corresponding path program 1 times [2023-11-21 19:05:09,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:05:09,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917616203] [2023-11-21 19:05:09,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:05:09,827 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 [2023-11-21 19:05:09,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:05:09,829 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:05:09,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc249d23-c02f-4b08-891f-704fae6c807f/bin/utaipan-verify-QoSU8krkJ5/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