./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c81340d9d0e66dca5ab126c254e84ac0eff8aac681c837312fa0969b8f7f2ee --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:56:48,142 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:56:48,254 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-19 07:56:48,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:56:48,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:56:48,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:56:48,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:56:48,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:56:48,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:56:48,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:56:48,313 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:56:48,313 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:56:48,314 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:56:48,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:56:48,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:56:48,317 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:56:48,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:56:48,318 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:56:48,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:56:48,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:56:48,320 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:56:48,320 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:56:48,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:56:48,321 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:56:48,322 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:56:48,322 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:56:48,323 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:56:48,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:56:48,324 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:56:48,324 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:56:48,326 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:56:48,326 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:56:48,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:48,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:56:48,327 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:56:48,327 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:56:48,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:56:48,328 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:56:48,328 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:56:48,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:56:48,329 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:56:48,329 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c81340d9d0e66dca5ab126c254e84ac0eff8aac681c837312fa0969b8f7f2ee [2023-11-19 07:56:48,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:56:48,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:56:48,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:56:48,691 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:56:48,692 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:56:48,694 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-3.i [2023-11-19 07:56:51,977 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:56:52,374 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:56:52,375 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-3.i [2023-11-19 07:56:52,407 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/data/6936bde8c/d793dbacfa294b0ba81d21314867e598/FLAGe7f3e4765 [2023-11-19 07:56:52,428 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/data/6936bde8c/d793dbacfa294b0ba81d21314867e598 [2023-11-19 07:56:52,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:56:52,437 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:56:52,441 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:52,441 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:56:52,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:56:52,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:52" (1/1) ... [2023-11-19 07:56:52,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a1c2a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:52, skipping insertion in model container [2023-11-19 07:56:52,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:52" (1/1) ... [2023-11-19 07:56:52,559 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:56:52,862 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:56:53,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:53,406 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-19 07:56:53,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@786d043e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:53, skipping insertion in model container [2023-11-19 07:56:53,407 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:53,408 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:56:53,410 INFO L158 Benchmark]: Toolchain (without parser) took 972.00ms. Allocated memory was 132.1MB in the beginning and 199.2MB in the end (delta: 67.1MB). Free memory was 84.0MB in the beginning and 169.3MB in the end (delta: -85.3MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2023-11-19 07:56:53,411 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory is still 49.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:56:53,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 966.91ms. Allocated memory was 132.1MB in the beginning and 199.2MB in the end (delta: 67.1MB). Free memory was 83.7MB in the beginning and 169.3MB in the end (delta: -85.6MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2023-11-19 07:56:53,414 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory is still 49.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 966.91ms. Allocated memory was 132.1MB in the beginning and 199.2MB in the end (delta: 67.1MB). Free memory was 83.7MB in the beginning and 169.3MB in the end (delta: -85.6MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 740]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c81340d9d0e66dca5ab126c254e84ac0eff8aac681c837312fa0969b8f7f2ee --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:56:56,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:56:56,226 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-19 07:56:56,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:56:56,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:56:56,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:56:56,288 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:56:56,288 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:56:56,289 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:56:56,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:56:56,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:56:56,296 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:56:56,296 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:56:56,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:56:56,299 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:56:56,299 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:56:56,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:56:56,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:56:56,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:56:56,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:56:56,302 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:56:56,303 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:56:56,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:56:56,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:56:56,304 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:56:56,304 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:56:56,305 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:56:56,305 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:56:56,305 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:56:56,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:56:56,307 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:56:56,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:56:56,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:56:56,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:56:56,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:56,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:56:56,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:56:56,309 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:56:56,309 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:56:56,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:56:56,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:56:56,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:56:56,311 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:56:56,311 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:56:56,312 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c81340d9d0e66dca5ab126c254e84ac0eff8aac681c837312fa0969b8f7f2ee [2023-11-19 07:56:56,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:56:56,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:56:56,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:56:56,793 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:56:56,794 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:56:56,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-3.i [2023-11-19 07:57:00,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:57:00,673 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:57:00,675 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-3.i [2023-11-19 07:57:00,708 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/data/8a009a142/029a16984d52414dbfbf6663606bb6ff/FLAG2b669d573 [2023-11-19 07:57:00,733 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/data/8a009a142/029a16984d52414dbfbf6663606bb6ff [2023-11-19 07:57:00,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:57:00,741 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:57:00,748 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:00,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:57:00,754 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:57:00,755 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:00" (1/1) ... [2023-11-19 07:57:00,756 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc459cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:00, skipping insertion in model container [2023-11-19 07:57:00,757 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:00" (1/1) ... [2023-11-19 07:57:00,866 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:01,238 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:57:01,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:01,656 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:57:01,687 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:01,695 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:57:01,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:01,870 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:57:01,902 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:57:02,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:02,059 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:57:02,068 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:57:02,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:02 WrapperNode [2023-11-19 07:57:02,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:02,070 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:02,070 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:57:02,071 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:57:02,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:02" (1/1) ... [2023-11-19 07:57:02,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:02" (1/1) ... [2023-11-19 07:57:02,290 INFO L138 Inliner]: procedures = 181, calls = 440, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1422 [2023-11-19 07:57:02,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:02,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:57:02,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:57:02,294 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:57:02,304 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:02" (1/1) ... [2023-11-19 07:57:02,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:02" (1/1) ... [2023-11-19 07:57:02,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:02" (1/1) ... [2023-11-19 07:57:02,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:02" (1/1) ... [2023-11-19 07:57:02,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:02" (1/1) ... [2023-11-19 07:57:02,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:02" (1/1) ... [2023-11-19 07:57:02,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:02" (1/1) ... [2023-11-19 07:57:02,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:02" (1/1) ... [2023-11-19 07:57:02,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:57:02,502 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:57:02,502 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:57:02,502 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:57:02,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:02" (1/1) ... [2023-11-19 07:57:02,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:02,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:02,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:57:02,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:57:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:57:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:57:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:57:02,610 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:57:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:57:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:57:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:57:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:57:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:57:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:57:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:57:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:57:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:57:02,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:57:02,937 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:57:02,939 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:57:19,074 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:57:19,088 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:57:19,088 INFO L302 CfgBuilder]: Removed 77 assume(true) statements. [2023-11-19 07:57:19,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:19 BoogieIcfgContainer [2023-11-19 07:57:19,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:57:19,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:57:19,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:57:19,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:57:19,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:00" (1/3) ... [2023-11-19 07:57:19,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa4864c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:19, skipping insertion in model container [2023-11-19 07:57:19,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:02" (2/3) ... [2023-11-19 07:57:19,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa4864c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:19, skipping insertion in model container [2023-11-19 07:57:19,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:19" (3/3) ... [2023-11-19 07:57:19,114 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test4-3.i [2023-11-19 07:57:19,134 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:57:19,135 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:57:19,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:19,206 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=PETRI_NET, 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;@557da972, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:19,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 07:57:19,213 INFO L276 IsEmpty]: Start isEmpty. Operand has 251 states, 241 states have (on average 1.6556016597510372) internal successors, (399), 243 states have internal predecessors, (399), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 07:57:19,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 07:57:19,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:19,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 07:57:19,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:57:19,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:19,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1172867, now seen corresponding path program 1 times [2023-11-19 07:57:19,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:57:19,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781500298] [2023-11-19 07:57:19,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:19,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:57:19,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:57:19,249 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:57:19,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 07:57:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:19,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:57:19,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:19,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:19,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:57:19,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781500298] [2023-11-19 07:57:19,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781500298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:19,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:19,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:19,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348209794] [2023-11-19 07:57:19,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:19,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:19,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:57:19,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:19,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:19,631 INFO L87 Difference]: Start difference. First operand has 251 states, 241 states have (on average 1.6556016597510372) internal successors, (399), 243 states have internal predecessors, (399), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:21,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:23,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:24,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:25,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:25,274 INFO L93 Difference]: Finished difference Result 314 states and 409 transitions. [2023-11-19 07:57:25,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:25,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 07:57:25,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:25,291 INFO L225 Difference]: With dead ends: 314 [2023-11-19 07:57:25,293 INFO L226 Difference]: Without dead ends: 310 [2023-11-19 07:57:25,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:25,300 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 83 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:25,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 656 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2023-11-19 07:57:25,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-19 07:57:25,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 260. [2023-11-19 07:57:25,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 251 states have (on average 1.298804780876494) internal successors, (326), 252 states have internal predecessors, (326), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 07:57:25,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 338 transitions. [2023-11-19 07:57:25,405 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 338 transitions. Word has length 4 [2023-11-19 07:57:25,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:25,405 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 338 transitions. [2023-11-19 07:57:25,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:25,406 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 338 transitions. [2023-11-19 07:57:25,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 07:57:25,407 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:25,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:25,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:25,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:57:25,610 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:57:25,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:25,611 INFO L85 PathProgramCache]: Analyzing trace with hash 310602656, now seen corresponding path program 1 times [2023-11-19 07:57:25,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:57:25,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194639445] [2023-11-19 07:57:25,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:25,616 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:57:25,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:57:25,618 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:57:25,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 07:57:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:25,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:57:25,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:25,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:25,929 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:25,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:57:25,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194639445] [2023-11-19 07:57:25,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194639445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:25,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:25,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:25,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391951046] [2023-11-19 07:57:25,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:25,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:25,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:57:25,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:25,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:25,934 INFO L87 Difference]: Start difference. First operand 260 states and 338 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:28,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:30,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:35,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:36,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:36,240 INFO L93 Difference]: Finished difference Result 433 states and 563 transitions. [2023-11-19 07:57:36,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:36,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 07:57:36,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:36,247 INFO L225 Difference]: With dead ends: 433 [2023-11-19 07:57:36,247 INFO L226 Difference]: Without dead ends: 433 [2023-11-19 07:57:36,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:36,249 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 245 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:36,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 873 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2023-11-19 07:57:36,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-11-19 07:57:36,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 379. [2023-11-19 07:57:36,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 367 states have (on average 1.2915531335149864) internal successors, (474), 368 states have internal predecessors, (474), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:57:36,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 492 transitions. [2023-11-19 07:57:36,274 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 492 transitions. Word has length 11 [2023-11-19 07:57:36,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:36,275 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 492 transitions. [2023-11-19 07:57:36,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:36,275 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 492 transitions. [2023-11-19 07:57:36,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 07:57:36,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:36,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:36,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:36,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:57:36,484 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:57:36,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:36,485 INFO L85 PathProgramCache]: Analyzing trace with hash -401982605, now seen corresponding path program 1 times [2023-11-19 07:57:36,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:57:36,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752256370] [2023-11-19 07:57:36,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:36,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:57:36,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:57:36,488 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:57:36,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 07:57:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:36,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:57:36,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:36,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:57:36,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:36,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:57:36,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752256370] [2023-11-19 07:57:36,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752256370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:36,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:36,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:57:36,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737592561] [2023-11-19 07:57:36,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:36,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:36,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:57:36,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:36,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:36,785 INFO L87 Difference]: Start difference. First operand 379 states and 492 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:37,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:37,738 INFO L93 Difference]: Finished difference Result 431 states and 559 transitions. [2023-11-19 07:57:37,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:37,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-11-19 07:57:37,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:37,748 INFO L225 Difference]: With dead ends: 431 [2023-11-19 07:57:37,748 INFO L226 Difference]: Without dead ends: 431 [2023-11-19 07:57:37,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:37,750 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 128 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:37,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 600 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:57:37,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-11-19 07:57:37,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 377. [2023-11-19 07:57:37,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 365 states have (on average 1.2876712328767124) internal successors, (470), 366 states have internal predecessors, (470), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:57:37,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 488 transitions. [2023-11-19 07:57:37,771 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 488 transitions. Word has length 27 [2023-11-19 07:57:37,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:37,771 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 488 transitions. [2023-11-19 07:57:37,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:37,772 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 488 transitions. [2023-11-19 07:57:37,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 07:57:37,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:37,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:37,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:37,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:57:37,976 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:57:37,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:37,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1219631055, now seen corresponding path program 1 times [2023-11-19 07:57:37,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:57:37,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659591347] [2023-11-19 07:57:37,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:37,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:57:37,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:57:37,979 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:57:37,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 07:57:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:38,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:57:38,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:38,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:38,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:57:38,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659591347] [2023-11-19 07:57:38,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659591347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:38,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:38,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:38,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681756350] [2023-11-19 07:57:38,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:38,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:38,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:57:38,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:38,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:38,352 INFO L87 Difference]: Start difference. First operand 377 states and 488 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:40,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:42,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:44,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:45,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:57:48,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:48,608 INFO L93 Difference]: Finished difference Result 431 states and 558 transitions. [2023-11-19 07:57:48,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:48,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-11-19 07:57:48,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:48,615 INFO L225 Difference]: With dead ends: 431 [2023-11-19 07:57:48,615 INFO L226 Difference]: Without dead ends: 425 [2023-11-19 07:57:48,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:48,616 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 132 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:48,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 904 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 103 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2023-11-19 07:57:48,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-11-19 07:57:48,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 371. [2023-11-19 07:57:48,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 359 states have (on average 1.2896935933147633) internal successors, (463), 360 states have internal predecessors, (463), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:57:48,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 481 transitions. [2023-11-19 07:57:48,634 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 481 transitions. Word has length 27 [2023-11-19 07:57:48,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:48,634 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 481 transitions. [2023-11-19 07:57:48,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:48,635 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 481 transitions. [2023-11-19 07:57:48,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-19 07:57:48,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:48,647 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:48,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:48,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:57:48,848 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:57:48,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:48,849 INFO L85 PathProgramCache]: Analyzing trace with hash -157580521, now seen corresponding path program 1 times [2023-11-19 07:57:48,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:57:48,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705728815] [2023-11-19 07:57:48,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:48,851 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:57:48,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:57:48,852 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:57:48,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 07:57:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:49,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:57:49,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:49,853 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:57:49,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:49,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:57:49,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705728815] [2023-11-19 07:57:49,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705728815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:49,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:49,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:49,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315177017] [2023-11-19 07:57:49,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:49,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:49,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:57:49,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:49,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:49,861 INFO L87 Difference]: Start difference. First operand 371 states and 481 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 07:57:50,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:50,005 INFO L93 Difference]: Finished difference Result 379 states and 473 transitions. [2023-11-19 07:57:50,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:57:50,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 147 [2023-11-19 07:57:50,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:50,009 INFO L225 Difference]: With dead ends: 379 [2023-11-19 07:57:50,009 INFO L226 Difference]: Without dead ends: 379 [2023-11-19 07:57:50,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:50,011 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 43 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:50,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 847 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:57:50,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-11-19 07:57:50,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 377. [2023-11-19 07:57:50,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 365 states have (on average 1.2410958904109588) internal successors, (453), 366 states have internal predecessors, (453), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:57:50,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 471 transitions. [2023-11-19 07:57:50,026 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 471 transitions. Word has length 147 [2023-11-19 07:57:50,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:50,027 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 471 transitions. [2023-11-19 07:57:50,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 07:57:50,027 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 471 transitions. [2023-11-19 07:57:50,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-19 07:57:50,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:50,030 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:50,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:50,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:57:50,246 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:57:50,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:50,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1659303621, now seen corresponding path program 1 times [2023-11-19 07:57:50,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:57:50,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574598165] [2023-11-19 07:57:50,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:50,248 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:57:50,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:57:50,249 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:57:50,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b932df33-d7a4-4239-8bff-797e0e5aa1ae/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-19 07:57:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:57:51,162 INFO L285 TraceCheckSpWp]: Computing forward predicates...