./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-1.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_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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_bafd0c3a-30a6-4907-b913-a343d48301fa/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 3cf10b967a6b35e74e5635ad2528d1917037f5847cda0e92ca33349ed0f01758 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:09:27,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:09:27,369 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-19 07:09:27,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:09:27,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:09:27,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:09:27,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:09:27,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:09:27,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:09:27,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:09:27,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:09:27,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:09:27,429 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:09:27,431 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:09:27,431 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:09:27,432 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:09:27,433 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:09:27,433 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:09:27,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:09:27,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:09:27,435 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:09:27,435 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:09:27,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:09:27,437 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:09:27,437 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:09:27,438 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:09:27,438 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:09:27,439 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:09:27,439 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:09:27,440 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:09:27,441 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:09:27,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:09:27,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:09:27,442 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:09:27,442 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:09:27,442 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:09:27,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:09:27,443 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:09:27,444 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:09:27,444 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:09:27,444 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:09:27,445 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_bafd0c3a-30a6-4907-b913-a343d48301fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf10b967a6b35e74e5635ad2528d1917037f5847cda0e92ca33349ed0f01758 [2023-11-19 07:09:27,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:09:27,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:09:27,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:09:27,852 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:09:27,852 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:09:27,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-1.i [2023-11-19 07:09:30,953 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:09:31,341 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:09:31,341 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-1.i [2023-11-19 07:09:31,375 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/data/217d22096/bb2cadab2c10460582812cf4c6b8ed50/FLAG608d6dca8 [2023-11-19 07:09:31,394 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/data/217d22096/bb2cadab2c10460582812cf4c6b8ed50 [2023-11-19 07:09:31,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:09:31,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:09:31,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:09:31,409 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:09:31,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:09:31,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b0898fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31, skipping insertion in model container [2023-11-19 07:09:31,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,515 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:09:31,861 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:09:32,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:09:32,255 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 07:09:32,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b09b48a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32, skipping insertion in model container [2023-11-19 07:09:32,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:09:32,257 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:09:32,259 INFO L158 Benchmark]: Toolchain (without parser) took 855.41ms. Allocated memory is still 180.4MB. Free memory was 148.0MB in the beginning and 131.3MB in the end (delta: 16.7MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2023-11-19 07:09:32,260 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:09:32,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 848.69ms. Allocated memory is still 180.4MB. Free memory was 147.8MB in the beginning and 131.3MB in the end (delta: 16.5MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2023-11-19 07:09:32,263 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 848.69ms. Allocated memory is still 180.4MB. Free memory was 147.8MB in the beginning and 131.3MB in the end (delta: 16.5MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 817]: 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_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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_bafd0c3a-30a6-4907-b913-a343d48301fa/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 3cf10b967a6b35e74e5635ad2528d1917037f5847cda0e92ca33349ed0f01758 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:09:34,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:09:34,949 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-19 07:09:34,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:09:34,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:09:35,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:09:35,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:09:35,024 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:09:35,025 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:09:35,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:09:35,031 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:09:35,032 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:09:35,032 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:09:35,035 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:09:35,035 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:09:35,036 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:09:35,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:09:35,037 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:09:35,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:09:35,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:09:35,039 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:09:35,040 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:09:35,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:09:35,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:09:35,041 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:09:35,041 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:09:35,042 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:09:35,042 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:09:35,043 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:09:35,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:09:35,044 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:09:35,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:09:35,045 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:09:35,046 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:09:35,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:09:35,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:09:35,047 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:09:35,047 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:09:35,047 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:09:35,048 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:09:35,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:09:35,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:09:35,049 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:09:35,050 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:09:35,050 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_bafd0c3a-30a6-4907-b913-a343d48301fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf10b967a6b35e74e5635ad2528d1917037f5847cda0e92ca33349ed0f01758 [2023-11-19 07:09:35,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:09:35,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:09:35,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:09:35,524 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:09:35,525 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:09:35,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-1.i [2023-11-19 07:09:38,810 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:09:39,227 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:09:39,228 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-1.i [2023-11-19 07:09:39,261 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/data/e112e52f7/7fa68919c5e343c29944b1cc5d7f0c96/FLAG8e0bf57a4 [2023-11-19 07:09:39,281 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/data/e112e52f7/7fa68919c5e343c29944b1cc5d7f0c96 [2023-11-19 07:09:39,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:09:39,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:09:39,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:09:39,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:09:39,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:09:39,297 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:39" (1/1) ... [2023-11-19 07:09:39,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1496d64d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:39, skipping insertion in model container [2023-11-19 07:09:39,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:39" (1/1) ... [2023-11-19 07:09:39,394 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:09:39,804 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:09:40,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:09:40,289 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:09:40,302 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:09:40,310 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:09:40,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:09:40,384 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:09:40,401 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:09:40,498 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:09:40,587 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:09:40,587 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:09:40,595 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:09:40,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:40 WrapperNode [2023-11-19 07:09:40,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:09:40,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:09:40,597 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:09:40,597 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:09:40,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:40" (1/1) ... [2023-11-19 07:09:40,661 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:40" (1/1) ... [2023-11-19 07:09:40,739 INFO L138 Inliner]: procedures = 211, calls = 231, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 867 [2023-11-19 07:09:40,743 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:09:40,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:09:40,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:09:40,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:09:40,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:40" (1/1) ... [2023-11-19 07:09:40,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:40" (1/1) ... [2023-11-19 07:09:40,765 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:40" (1/1) ... [2023-11-19 07:09:40,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:40" (1/1) ... [2023-11-19 07:09:40,826 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:40" (1/1) ... [2023-11-19 07:09:40,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:40" (1/1) ... [2023-11-19 07:09:40,850 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:40" (1/1) ... [2023-11-19 07:09:40,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:40" (1/1) ... [2023-11-19 07:09:40,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:09:40,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:09:40,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:09:40,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:09:40,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:40" (1/1) ... [2023-11-19 07:09:40,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:09:40,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:40,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:09:40,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:09:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:09:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:09:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:09:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:09:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:09:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:09:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:09:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:09:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:09:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:09:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:09:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:09:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:09:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:09:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:09:41,214 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:09:41,216 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:09:47,693 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:09:47,709 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:09:47,710 INFO L302 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-19 07:09:47,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:47 BoogieIcfgContainer [2023-11-19 07:09:47,721 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:09:47,723 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:09:47,725 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:09:47,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:09:47,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:09:39" (1/3) ... [2023-11-19 07:09:47,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c62e9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:09:47, skipping insertion in model container [2023-11-19 07:09:47,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:40" (2/3) ... [2023-11-19 07:09:47,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c62e9ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:09:47, skipping insertion in model container [2023-11-19 07:09:47,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:47" (3/3) ... [2023-11-19 07:09:47,732 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test2-1.i [2023-11-19 07:09:47,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:09:47,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:09:47,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:09:47,804 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;@55976ff, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:09:47,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 07:09:47,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 163 states have (on average 1.6625766871165644) internal successors, (271), 165 states have internal predecessors, (271), 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) [2023-11-19 07:09:47,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 07:09:47,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:47,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 07:09:47,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:09:47,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:47,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1172545, now seen corresponding path program 1 times [2023-11-19 07:09:47,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:09:47,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377497353] [2023-11-19 07:09:47,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:47,835 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 07:09:47,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:09:47,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:09:47,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:09:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:48,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:09:48,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:48,192 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_17| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17| (_ bv0 1))))) is different from true [2023-11-19 07:09:48,195 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 07:09:48,195 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:09:48,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:09:48,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377497353] [2023-11-19 07:09:48,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [377497353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:48,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:48,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:09:48,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62931977] [2023-11-19 07:09:48,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:48,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:09:48,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:09:48,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:09:48,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-19 07:09:48,258 INFO L87 Difference]: Start difference. First operand has 170 states, 163 states have (on average 1.6625766871165644) internal successors, (271), 165 states have internal predecessors, (271), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 07:09:50,572 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 [] [2023-11-19 07:09:51,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:09:51,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:51,992 INFO L93 Difference]: Finished difference Result 240 states and 308 transitions. [2023-11-19 07:09:51,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:09:51,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 07:09:51,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:52,007 INFO L225 Difference]: With dead ends: 240 [2023-11-19 07:09:52,007 INFO L226 Difference]: Without dead ends: 237 [2023-11-19 07:09:52,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-19 07:09:52,012 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 90 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 309 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:52,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 403 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 1 Unknown, 309 Unchecked, 3.7s Time] [2023-11-19 07:09:52,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-19 07:09:52,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 167. [2023-11-19 07:09:52,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 161 states have (on average 1.2857142857142858) internal successors, (207), 162 states have internal predecessors, (207), 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) [2023-11-19 07:09:52,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 213 transitions. [2023-11-19 07:09:52,073 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 213 transitions. Word has length 4 [2023-11-19 07:09:52,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:52,074 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 213 transitions. [2023-11-19 07:09:52,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 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 07:09:52,074 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 213 transitions. [2023-11-19 07:09:52,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 07:09:52,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:52,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:52,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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)] Ended with exit code 0 [2023-11-19 07:09:52,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:09:52,276 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:09:52,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:52,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1086531386, now seen corresponding path program 1 times [2023-11-19 07:09:52,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:09:52,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542995120] [2023-11-19 07:09:52,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:52,278 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 07:09:52,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:09:52,279 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:09:52,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:09:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:52,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:09:52,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:52,648 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_18| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_18| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_18|)))) is different from true [2023-11-19 07:09:52,649 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 07:09:52,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:09:52,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:09:52,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542995120] [2023-11-19 07:09:52,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542995120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:52,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:52,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:09:52,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211225247] [2023-11-19 07:09:52,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:52,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:09:52,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:09:52,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:09:52,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-19 07:09:52,653 INFO L87 Difference]: Start difference. First operand 167 states and 213 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:55,086 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 07:09:55,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:55,310 INFO L93 Difference]: Finished difference Result 238 states and 304 transitions. [2023-11-19 07:09:55,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:09:55,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-19 07:09:55,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:55,314 INFO L225 Difference]: With dead ends: 238 [2023-11-19 07:09:55,314 INFO L226 Difference]: Without dead ends: 236 [2023-11-19 07:09:55,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-19 07:09:55,316 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 84 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 303 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:55,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 400 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 1 Unknown, 303 Unchecked, 2.6s Time] [2023-11-19 07:09:55,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-19 07:09:55,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 233. [2023-11-19 07:09:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 227 states have (on average 1.2951541850220265) internal successors, (294), 228 states have internal predecessors, (294), 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) [2023-11-19 07:09:55,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 300 transitions. [2023-11-19 07:09:55,339 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 300 transitions. Word has length 10 [2023-11-19 07:09:55,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:55,339 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 300 transitions. [2023-11-19 07:09:55,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:55,340 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 300 transitions. [2023-11-19 07:09:55,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 07:09:55,342 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:55,343 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:55,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:09:55,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:09:55,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:09:55,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:55,548 INFO L85 PathProgramCache]: Analyzing trace with hash 628442034, now seen corresponding path program 1 times [2023-11-19 07:09:55,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:09:55,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018300178] [2023-11-19 07:09:55,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:55,549 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 07:09:55,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:09:55,551 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:09:55,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:09:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:55,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:09:55,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:55,819 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 07:09:55,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:09:55,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:09:55,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018300178] [2023-11-19 07:09:55,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018300178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:55,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:55,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:09:55,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793623128] [2023-11-19 07:09:55,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:55,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:09:55,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:09:55,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:09:55,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:09:55,822 INFO L87 Difference]: Start difference. First operand 233 states and 300 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 07:09:55,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:55,973 INFO L93 Difference]: Finished difference Result 241 states and 292 transitions. [2023-11-19 07:09:55,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:09:55,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 49 [2023-11-19 07:09:55,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:55,977 INFO L225 Difference]: With dead ends: 241 [2023-11-19 07:09:55,977 INFO L226 Difference]: Without dead ends: 241 [2023-11-19 07:09:55,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 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 07:09:55,979 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 36 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:55,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 526 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:09:55,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-11-19 07:09:55,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 239. [2023-11-19 07:09:55,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 233 states have (on average 1.2188841201716738) internal successors, (284), 234 states have internal predecessors, (284), 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) [2023-11-19 07:09:55,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 290 transitions. [2023-11-19 07:09:55,997 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 290 transitions. Word has length 49 [2023-11-19 07:09:55,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:55,998 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 290 transitions. [2023-11-19 07:09:55,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 07:09:55,998 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 290 transitions. [2023-11-19 07:09:56,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 07:09:56,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:56,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:56,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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)] Ended with exit code 0 [2023-11-19 07:09:56,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:09:56,205 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:09:56,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:56,206 INFO L85 PathProgramCache]: Analyzing trace with hash 2135017638, now seen corresponding path program 1 times [2023-11-19 07:09:56,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:09:56,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178148637] [2023-11-19 07:09:56,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:56,207 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 07:09:56,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:09:56,208 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:09:56,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:09:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:56,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:09:56,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:56,500 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:09:56,501 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:09:56,501 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:09:56,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-19 07:09:56,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:09:56,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-19 07:09:56,696 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 07:09:56,696 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:09:56,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:09:56,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178148637] [2023-11-19 07:09:56,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178148637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:56,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:56,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:09:56,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993211774] [2023-11-19 07:09:56,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:56,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:09:56,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:09:56,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:09:56,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:09:56,700 INFO L87 Difference]: Start difference. First operand 239 states and 290 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 07:10:02,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:10:04,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:10:04,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:04,667 INFO L93 Difference]: Finished difference Result 213 states and 263 transitions. [2023-11-19 07:10:04,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:10:04,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 49 [2023-11-19 07:10:04,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:04,670 INFO L225 Difference]: With dead ends: 213 [2023-11-19 07:10:04,671 INFO L226 Difference]: Without dead ends: 210 [2023-11-19 07:10:04,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:10:04,672 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 52 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:04,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 681 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2023-11-19 07:10:04,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-19 07:10:04,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 172. [2023-11-19 07:10:04,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 166 states have (on average 1.2289156626506024) internal successors, (204), 167 states have internal predecessors, (204), 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) [2023-11-19 07:10:04,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 210 transitions. [2023-11-19 07:10:04,684 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 210 transitions. Word has length 49 [2023-11-19 07:10:04,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:04,684 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 210 transitions. [2023-11-19 07:10:04,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 07:10:04,685 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 210 transitions. [2023-11-19 07:10:04,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 07:10:04,688 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:04,688 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:10:04,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:04,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:04,894 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:10:04,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:04,895 INFO L85 PathProgramCache]: Analyzing trace with hash -816462422, now seen corresponding path program 1 times [2023-11-19 07:10:04,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:10:04,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520893204] [2023-11-19 07:10:04,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:04,897 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 07:10:04,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:10:04,898 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:04,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:05,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:10:05,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:10:05,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:10:05,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:10:05,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:10:05,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520893204] [2023-11-19 07:10:05,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520893204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:10:05,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:10:05,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:10:05,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817197775] [2023-11-19 07:10:05,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:10:05,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:10:05,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:10:05,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:10:05,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:10:05,364 INFO L87 Difference]: Start difference. First operand 172 states and 210 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:10:05,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:05,496 INFO L93 Difference]: Finished difference Result 176 states and 206 transitions. [2023-11-19 07:10:05,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:10:05,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-19 07:10:05,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:05,499 INFO L225 Difference]: With dead ends: 176 [2023-11-19 07:10:05,499 INFO L226 Difference]: Without dead ends: 176 [2023-11-19 07:10:05,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:10:05,500 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 43 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 490 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 07:10:05,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 490 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:10:05,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-19 07:10:05,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 175. [2023-11-19 07:10:05,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 169 states have (on average 1.1775147928994083) internal successors, (199), 170 states have internal predecessors, (199), 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) [2023-11-19 07:10:05,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 205 transitions. [2023-11-19 07:10:05,510 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 205 transitions. Word has length 66 [2023-11-19 07:10:05,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:05,510 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 205 transitions. [2023-11-19 07:10:05,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:10:05,511 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 205 transitions. [2023-11-19 07:10:05,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 07:10:05,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:05,514 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:10:05,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:05,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:05,722 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:10:05,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:05,722 INFO L85 PathProgramCache]: Analyzing trace with hash -993680358, now seen corresponding path program 1 times [2023-11-19 07:10:05,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:10:05,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313817318] [2023-11-19 07:10:05,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:05,724 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 07:10:05,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:10:05,725 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:05,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:06,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:10:06,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:10:06,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:10:06,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:10:06,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:10:06,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313817318] [2023-11-19 07:10:06,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313817318] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:10:06,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:10:06,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:10:06,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132980018] [2023-11-19 07:10:06,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:10:06,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:10:06,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:10:06,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:10:06,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:10:06,268 INFO L87 Difference]: Start difference. First operand 175 states and 205 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:10:06,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:06,369 INFO L93 Difference]: Finished difference Result 169 states and 195 transitions. [2023-11-19 07:10:06,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:10:06,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-19 07:10:06,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:06,372 INFO L225 Difference]: With dead ends: 169 [2023-11-19 07:10:06,372 INFO L226 Difference]: Without dead ends: 169 [2023-11-19 07:10:06,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:10:06,374 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 15 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:06,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 491 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:10:06,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-11-19 07:10:06,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2023-11-19 07:10:06,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 163 states have (on average 1.1595092024539877) internal successors, (189), 164 states have internal predecessors, (189), 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) [2023-11-19 07:10:06,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 195 transitions. [2023-11-19 07:10:06,383 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 195 transitions. Word has length 66 [2023-11-19 07:10:06,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:06,384 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 195 transitions. [2023-11-19 07:10:06,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:10:06,384 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 195 transitions. [2023-11-19 07:10:06,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-19 07:10:06,387 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:06,388 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:10:06,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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)] Forceful destruction successful, exit code 0 [2023-11-19 07:10:06,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:06,601 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:10:06,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:06,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1620938272, now seen corresponding path program 1 times [2023-11-19 07:10:06,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:10:06,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532619750] [2023-11-19 07:10:06,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:06,603 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 07:10:06,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:10:06,606 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:06,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 (8)] Waiting until timeout for monitored process [2023-11-19 07:10:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:07,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:10:07,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:10:07,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:10:07,485 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:10:07,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:10:07,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532619750] [2023-11-19 07:10:07,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532619750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:10:07,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:10:07,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:10:07,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086626181] [2023-11-19 07:10:07,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:10:07,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:10:07,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:10:07,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:10:07,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:10:07,487 INFO L87 Difference]: Start difference. First operand 169 states and 195 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:10:08,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:08,575 INFO L93 Difference]: Finished difference Result 260 states and 290 transitions. [2023-11-19 07:10:08,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:10:08,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-19 07:10:08,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:08,578 INFO L225 Difference]: With dead ends: 260 [2023-11-19 07:10:08,578 INFO L226 Difference]: Without dead ends: 260 [2023-11-19 07:10:08,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:10:08,579 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 59 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:08,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 392 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 07:10:08,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-19 07:10:08,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 254. [2023-11-19 07:10:08,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 248 states have (on average 1.1290322580645162) internal successors, (280), 249 states have internal predecessors, (280), 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) [2023-11-19 07:10:08,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 286 transitions. [2023-11-19 07:10:08,589 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 286 transitions. Word has length 66 [2023-11-19 07:10:08,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:08,590 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 286 transitions. [2023-11-19 07:10:08,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:10:08,590 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 286 transitions. [2023-11-19 07:10:08,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 07:10:08,594 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:08,594 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:10:08,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:10:08,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:08,801 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:10:08,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:08,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1562584901, now seen corresponding path program 1 times [2023-11-19 07:10:08,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:10:08,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198931563] [2023-11-19 07:10:08,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:08,803 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 07:10:08,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:10:08,804 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:08,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 (9)] Waiting until timeout for monitored process [2023-11-19 07:10:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:09,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:10:09,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:10:09,403 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:10:09,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:10:09,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:10:09,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198931563] [2023-11-19 07:10:09,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198931563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:10:09,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:10:09,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:10:09,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572794556] [2023-11-19 07:10:09,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:10:09,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:10:09,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:10:09,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:10:09,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:10:09,406 INFO L87 Difference]: Start difference. First operand 254 states and 286 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2023-11-19 07:10:09,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:09,472 INFO L93 Difference]: Finished difference Result 257 states and 290 transitions. [2023-11-19 07:10:09,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:10:09,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 81 [2023-11-19 07:10:09,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:09,477 INFO L225 Difference]: With dead ends: 257 [2023-11-19 07:10:09,477 INFO L226 Difference]: Without dead ends: 257 [2023-11-19 07:10:09,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 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 07:10:09,478 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 2 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:09,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 548 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:10:09,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-11-19 07:10:09,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2023-11-19 07:10:09,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 250 states have (on average 1.132) internal successors, (283), 252 states have internal predecessors, (283), 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) [2023-11-19 07:10:09,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 290 transitions. [2023-11-19 07:10:09,489 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 290 transitions. Word has length 81 [2023-11-19 07:10:09,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:09,490 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 290 transitions. [2023-11-19 07:10:09,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2023-11-19 07:10:09,490 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 290 transitions. [2023-11-19 07:10:09,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 07:10:09,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:09,492 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:10:09,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 (9)] Ended with exit code 0 [2023-11-19 07:10:09,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:09,700 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:10:09,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:09,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1370739815, now seen corresponding path program 1 times [2023-11-19 07:10:09,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:10:09,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601736623] [2023-11-19 07:10:09,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:09,702 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 07:10:09,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:10:09,703 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:09,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 (10)] Waiting until timeout for monitored process [2023-11-19 07:10:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:10,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:10:10,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:10:10,344 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:10:10,344 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:10:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:10:10,494 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:10:10,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601736623] [2023-11-19 07:10:10,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601736623] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:10:10,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:10:10,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-19 07:10:10,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040871640] [2023-11-19 07:10:10,495 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:10:10,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:10:10,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:10:10,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:10:10,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:10:10,496 INFO L87 Difference]: Start difference. First operand 257 states and 290 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:10:10,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:10,776 INFO L93 Difference]: Finished difference Result 268 states and 306 transitions. [2023-11-19 07:10:10,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:10:10,777 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 83 [2023-11-19 07:10:10,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:10,780 INFO L225 Difference]: With dead ends: 268 [2023-11-19 07:10:10,780 INFO L226 Difference]: Without dead ends: 268 [2023-11-19 07:10:10,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:10:10,781 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 8 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:10,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1089 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:10:10,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-19 07:10:10,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 266. [2023-11-19 07:10:10,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 258 states have (on average 1.1511627906976745) internal successors, (297), 260 states have internal predecessors, (297), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:10:10,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 304 transitions. [2023-11-19 07:10:10,792 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 304 transitions. Word has length 83 [2023-11-19 07:10:10,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:10,792 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 304 transitions. [2023-11-19 07:10:10,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:10:10,793 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 304 transitions. [2023-11-19 07:10:10,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 07:10:10,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:10,794 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:10:10,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:10:11,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:11,004 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:10:11,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:11,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1594448059, now seen corresponding path program 2 times [2023-11-19 07:10:11,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:10:11,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685438472] [2023-11-19 07:10:11,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:10:11,005 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 07:10:11,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:10:11,009 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:11,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 (11)] Waiting until timeout for monitored process [2023-11-19 07:10:11,615 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:10:11,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:10:11,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:10:11,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:10:11,776 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:10:11,776 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:10:12,075 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:10:12,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:10:12,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685438472] [2023-11-19 07:10:12,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685438472] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:10:12,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:10:12,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-19 07:10:12,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920008708] [2023-11-19 07:10:12,076 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:10:12,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:10:12,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:10:12,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:10:12,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:10:12,077 INFO L87 Difference]: Start difference. First operand 266 states and 304 transitions. Second operand has 14 states, 14 states have (on average 6.642857142857143) internal successors, (93), 14 states have internal predecessors, (93), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:10:13,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:13,177 INFO L93 Difference]: Finished difference Result 287 states and 332 transitions. [2023-11-19 07:10:13,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-19 07:10:13,178 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.642857142857143) internal successors, (93), 14 states have internal predecessors, (93), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 87 [2023-11-19 07:10:13,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:13,180 INFO L225 Difference]: With dead ends: 287 [2023-11-19 07:10:13,181 INFO L226 Difference]: Without dead ends: 283 [2023-11-19 07:10:13,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-19 07:10:13,182 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 18 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:13,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1653 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:10:13,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-19 07:10:13,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 275. [2023-11-19 07:10:13,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 267 states have (on average 1.1573033707865168) internal successors, (309), 269 states have internal predecessors, (309), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:10:13,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 316 transitions. [2023-11-19 07:10:13,194 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 316 transitions. Word has length 87 [2023-11-19 07:10:13,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:13,194 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 316 transitions. [2023-11-19 07:10:13,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.642857142857143) internal successors, (93), 14 states have internal predecessors, (93), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:10:13,195 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 316 transitions. [2023-11-19 07:10:13,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 07:10:13,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:13,196 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:10:13,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:10:13,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:13,407 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:10:13,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:13,407 INFO L85 PathProgramCache]: Analyzing trace with hash 20220815, now seen corresponding path program 3 times [2023-11-19 07:10:13,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:10:13,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895256455] [2023-11-19 07:10:13,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:10:13,408 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 07:10:13,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:10:13,409 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:13,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 (12)] Waiting until timeout for monitored process [2023-11-19 07:10:13,965 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-19 07:10:13,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:10:13,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:10:13,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:10:14,636 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:10:14,637 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:10:14,637 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:10:14,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-19 07:10:14,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:10:14,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-19 07:10:14,800 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2023-11-19 07:10:14,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:10:14,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:10:14,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895256455] [2023-11-19 07:10:14,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895256455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:10:14,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:10:14,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:10:14,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460473832] [2023-11-19 07:10:14,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:10:14,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:10:14,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:10:14,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:10:14,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:10:14,803 INFO L87 Difference]: Start difference. First operand 275 states and 316 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:10:17,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:10:19,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:10:19,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:19,793 INFO L93 Difference]: Finished difference Result 351 states and 404 transitions. [2023-11-19 07:10:19,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:10:19,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 96 [2023-11-19 07:10:19,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:19,796 INFO L225 Difference]: With dead ends: 351 [2023-11-19 07:10:19,796 INFO L226 Difference]: Without dead ends: 351 [2023-11-19 07:10:19,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:10:19,797 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 185 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:19,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 475 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2023-11-19 07:10:19,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-19 07:10:19,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 277. [2023-11-19 07:10:19,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 269 states have (on average 1.1561338289962826) internal successors, (311), 271 states have internal predecessors, (311), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:10:19,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 318 transitions. [2023-11-19 07:10:19,808 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 318 transitions. Word has length 96 [2023-11-19 07:10:19,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:19,808 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 318 transitions. [2023-11-19 07:10:19,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:10:19,809 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 318 transitions. [2023-11-19 07:10:19,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-19 07:10:19,811 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:19,811 INFO L195 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:10:19,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 (12)] Ended with exit code 0 [2023-11-19 07:10:20,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:20,019 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:10:20,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:20,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1330061647, now seen corresponding path program 1 times [2023-11-19 07:10:20,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:10:20,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011035270] [2023-11-19 07:10:20,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:20,021 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 07:10:20,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:10:20,022 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:20,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 (13)] Waiting until timeout for monitored process [2023-11-19 07:10:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:20,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:10:20,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:10:21,105 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 71 proven. 55 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 07:10:21,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:10:21,984 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:10:21,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:10:21,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011035270] [2023-11-19 07:10:21,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011035270] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:10:21,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:10:21,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-19 07:10:21,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625541196] [2023-11-19 07:10:21,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:10:21,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-19 07:10:21,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:10:21,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-19 07:10:21,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-19 07:10:21,987 INFO L87 Difference]: Start difference. First operand 277 states and 318 transitions. Second operand has 26 states, 26 states have (on average 5.538461538461538) internal successors, (144), 26 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:10:25,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:25,520 INFO L93 Difference]: Finished difference Result 319 states and 376 transitions. [2023-11-19 07:10:25,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-19 07:10:25,521 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.538461538461538) internal successors, (144), 26 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 135 [2023-11-19 07:10:25,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:25,523 INFO L225 Difference]: With dead ends: 319 [2023-11-19 07:10:25,523 INFO L226 Difference]: Without dead ends: 315 [2023-11-19 07:10:25,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1025, Invalid=2281, Unknown=0, NotChecked=0, Total=3306 [2023-11-19 07:10:25,526 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 36 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2299 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:25,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2299 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-19 07:10:25,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-19 07:10:25,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 295. [2023-11-19 07:10:25,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 287 states have (on average 1.1672473867595818) internal successors, (335), 289 states have internal predecessors, (335), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:10:25,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 342 transitions. [2023-11-19 07:10:25,539 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 342 transitions. Word has length 135 [2023-11-19 07:10:25,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:25,539 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 342 transitions. [2023-11-19 07:10:25,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.538461538461538) internal successors, (144), 26 states have internal predecessors, (144), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:10:25,540 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 342 transitions. [2023-11-19 07:10:25,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-19 07:10:25,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:25,542 INFO L195 NwaCegarLoop]: trace histogram [33, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:10:25,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:10:25,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:25,753 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 07:10:25,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:25,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1872694961, now seen corresponding path program 2 times [2023-11-19 07:10:25,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:10:25,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375414972] [2023-11-19 07:10:25,757 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:10:25,757 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 07:10:25,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:10:25,764 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 07:10:25,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bafd0c3a-30a6-4907-b913-a343d48301fa/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 (14)] Waiting until timeout for monitored process [2023-11-19 07:10:26,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:10:26,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:10:26,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 07:10:26,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:10:27,716 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 281 proven. 253 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 07:10:27,717 INFO L327 TraceCheckSpWp]: Computing backward predicates...