./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f3a36748f32ca088af5a89c176902d6a78b8f206b767e4775b8a1d3a36bb37f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:02:28,194 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:02:28,340 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 08:02:28,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:02:28,346 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:02:28,405 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:02:28,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:02:28,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:02:28,408 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:02:28,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:02:28,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:02:28,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:02:28,422 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:02:28,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:02:28,425 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:02:28,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:02:28,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:02:28,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:02:28,427 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 08:02:28,428 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 08:02:28,429 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 08:02:28,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:02:28,430 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:02:28,430 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:02:28,431 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:02:28,431 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:02:28,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:02:28,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:02:28,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:02:28,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:28,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:02:28,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:02:28,437 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:02:28,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:02:28,437 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:02:28,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:02:28,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:02:28,438 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:02:28,438 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_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f3a36748f32ca088af5a89c176902d6a78b8f206b767e4775b8a1d3a36bb37f [2023-11-19 08:02:28,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:02:28,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:02:28,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:02:28,865 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:02:28,867 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:02:28,869 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i [2023-11-19 08:02:32,751 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:02:33,259 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:02:33,260 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i [2023-11-19 08:02:33,296 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/data/3982e5f2a/d15bfaccba4646f58af88db6d41394af/FLAG2faf04fd9 [2023-11-19 08:02:33,323 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/data/3982e5f2a/d15bfaccba4646f58af88db6d41394af [2023-11-19 08:02:33,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:02:33,337 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:02:33,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:33,339 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:02:33,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:02:33,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:33" (1/1) ... [2023-11-19 08:02:33,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dd315bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:33, skipping insertion in model container [2023-11-19 08:02:33,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:33" (1/1) ... [2023-11-19 08:02:33,470 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:02:33,867 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 08:02:34,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:34,284 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 08:02:34,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4bf329a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:34, skipping insertion in model container [2023-11-19 08:02:34,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:34,286 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 08:02:34,289 INFO L158 Benchmark]: Toolchain (without parser) took 950.76ms. Allocated memory is still 199.2MB. Free memory was 150.7MB in the beginning and 131.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 08:02:34,290 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 134.2MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:02:34,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 946.73ms. Allocated memory is still 199.2MB. Free memory was 150.3MB in the beginning and 131.1MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 08:02:34,294 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 134.2MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 946.73ms. Allocated memory is still 199.2MB. Free memory was 150.3MB in the beginning and 131.1MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 739]: 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_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f3a36748f32ca088af5a89c176902d6a78b8f206b767e4775b8a1d3a36bb37f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:02:37,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:02:37,568 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-19 08:02:37,578 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:02:37,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:02:37,674 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:02:37,675 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:02:37,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:02:37,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:02:37,683 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:02:37,685 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:02:37,685 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:02:37,686 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:02:37,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:02:37,689 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:02:37,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:02:37,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:02:37,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:02:37,692 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 08:02:37,693 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 08:02:37,694 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 08:02:37,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:02:37,695 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:02:37,696 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 08:02:37,696 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 08:02:37,697 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:02:37,698 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:02:37,698 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:02:37,699 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:02:37,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:02:37,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:02:37,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:37,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:02:37,703 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:02:37,704 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 08:02:37,704 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 08:02:37,704 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:02:37,705 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:02:37,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:02:37,706 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 08:02:37,707 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:02:37,707 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_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f3a36748f32ca088af5a89c176902d6a78b8f206b767e4775b8a1d3a36bb37f [2023-11-19 08:02:38,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:02:38,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:02:38,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:02:38,251 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:02:38,252 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:02:38,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i [2023-11-19 08:02:42,111 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:02:42,678 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:02:42,679 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-1.i [2023-11-19 08:02:42,716 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/data/ed85a365e/26d97b26139746bb990f905aee60b419/FLAGd4392a3e4 [2023-11-19 08:02:42,747 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/data/ed85a365e/26d97b26139746bb990f905aee60b419 [2023-11-19 08:02:42,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:02:42,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:02:42,761 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:42,761 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:02:42,768 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:02:42,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:42" (1/1) ... [2023-11-19 08:02:42,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1550accd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:42, skipping insertion in model container [2023-11-19 08:02:42,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:42" (1/1) ... [2023-11-19 08:02:42,880 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:02:43,253 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 08:02:43,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:43,701 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 08:02:43,730 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:02:43,755 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 08:02:43,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:43,883 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:02:43,934 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 08:02:44,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:44,174 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:02:44,175 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:02:44,185 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:02:44,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44 WrapperNode [2023-11-19 08:02:44,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:44,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:44,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:02:44,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:02:44,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,392 INFO L138 Inliner]: procedures = 181, calls = 283, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1031 [2023-11-19 08:02:44,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:44,395 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:02:44,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:02:44,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:02:44,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,496 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,537 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:02:44,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:02:44,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:02:44,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:02:44,549 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:44,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:44,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:44,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:02:44,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 08:02:44,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 08:02:44,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 08:02:44,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 08:02:44,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 08:02:44,692 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 08:02:44,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:02:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:02:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:02:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:02:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 08:02:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:02:44,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 08:02:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:02:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 08:02:44,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:02:44,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:02:45,046 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:02:45,050 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:02:45,055 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 08:02:51,308 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:02:51,326 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:02:51,327 INFO L302 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-19 08:02:51,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:51 BoogieIcfgContainer [2023-11-19 08:02:51,348 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:02:51,351 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:02:51,352 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:02:51,355 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:02:51,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:02:42" (1/3) ... [2023-11-19 08:02:51,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c52a1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:51, skipping insertion in model container [2023-11-19 08:02:51,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (2/3) ... [2023-11-19 08:02:51,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c52a1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:51, skipping insertion in model container [2023-11-19 08:02:51,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:51" (3/3) ... [2023-11-19 08:02:51,361 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test3-1.i [2023-11-19 08:02:51,379 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:02:51,380 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 531 error locations. [2023-11-19 08:02:51,459 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:02:51,467 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;@2270eed4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:02:51,468 INFO L358 AbstractCegarLoop]: Starting to check reachability of 531 error locations. [2023-11-19 08:02:51,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 1068 states, 532 states have (on average 2.2274436090225564) internal successors, (1185), 1061 states have internal predecessors, (1185), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:02:51,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 08:02:51,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:51,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 08:02:51,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-19 08:02:51,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:51,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1202725, now seen corresponding path program 1 times [2023-11-19 08:02:51,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:02:51,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606863809] [2023-11-19 08:02:51,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:51,517 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 08:02:51,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:02:51,520 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:02:51,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:02:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:51,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:02:51,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:51,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2023-11-19 08:02:51,799 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 08:02:51,799 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:02:51,800 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:02:51,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606863809] [2023-11-19 08:02:51,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606863809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:51,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:51,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:02:51,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473145663] [2023-11-19 08:02:51,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:51,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:51,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:02:51,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:51,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:51,850 INFO L87 Difference]: Start difference. First operand has 1068 states, 532 states have (on average 2.2274436090225564) internal successors, (1185), 1061 states have internal predecessors, (1185), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:54,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:54,304 INFO L93 Difference]: Finished difference Result 1068 states and 1126 transitions. [2023-11-19 08:02:54,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:54,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 08:02:54,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:54,335 INFO L225 Difference]: With dead ends: 1068 [2023-11-19 08:02:54,335 INFO L226 Difference]: Without dead ends: 1066 [2023-11-19 08:02:54,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:54,342 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 982 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:54,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 700 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-19 08:02:54,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2023-11-19 08:02:54,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1056. [2023-11-19 08:02:54,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 535 states have (on average 2.067289719626168) internal successors, (1106), 1048 states have internal predecessors, (1106), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:02:54,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1116 transitions. [2023-11-19 08:02:54,478 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1116 transitions. Word has length 4 [2023-11-19 08:02:54,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:54,479 INFO L495 AbstractCegarLoop]: Abstraction has 1056 states and 1116 transitions. [2023-11-19 08:02:54,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:54,480 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1116 transitions. [2023-11-19 08:02:54,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 08:02:54,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:54,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 08:02:54,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:02:54,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:02:54,684 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-19 08:02:54,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:54,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1202726, now seen corresponding path program 1 times [2023-11-19 08:02:54,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:02:54,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799908148] [2023-11-19 08:02:54,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:54,686 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 08:02:54,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:02:54,688 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:02:54,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:02:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:54,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:02:54,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:54,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-11-19 08:02:54,899 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 08:02:54,899 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:02:54,900 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:02:54,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799908148] [2023-11-19 08:02:54,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799908148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:54,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:54,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:02:54,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066496781] [2023-11-19 08:02:54,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:54,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:54,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:02:54,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:54,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:54,911 INFO L87 Difference]: Start difference. First operand 1056 states and 1116 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:59,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:59,067 INFO L93 Difference]: Finished difference Result 1457 states and 1550 transitions. [2023-11-19 08:02:59,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:59,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 08:02:59,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:59,078 INFO L225 Difference]: With dead ends: 1457 [2023-11-19 08:02:59,078 INFO L226 Difference]: Without dead ends: 1457 [2023-11-19 08:02:59,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:59,080 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 429 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:59,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1498 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-19 08:02:59,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2023-11-19 08:02:59,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1263. [2023-11-19 08:02:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 742 states have (on average 2.0539083557951483) internal successors, (1524), 1254 states have internal predecessors, (1524), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 08:02:59,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1536 transitions. [2023-11-19 08:02:59,140 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1536 transitions. Word has length 4 [2023-11-19 08:02:59,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:59,141 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 1536 transitions. [2023-11-19 08:02:59,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:59,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1536 transitions. [2023-11-19 08:02:59,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 08:02:59,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:59,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 08:02:59,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:02:59,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:02:59,344 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr529ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-19 08:02:59,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:59,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1204300, now seen corresponding path program 1 times [2023-11-19 08:02:59,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:02:59,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216975558] [2023-11-19 08:02:59,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:59,347 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 08:02:59,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:02:59,348 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:02:59,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:02:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:59,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:02:59,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:59,617 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_43| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_43|)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_43| (_ bv0 1))))) is different from true [2023-11-19 08:02:59,617 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 08:02:59,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:02:59,618 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:02:59,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216975558] [2023-11-19 08:02:59,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216975558] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:59,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:59,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:02:59,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224393619] [2023-11-19 08:02:59,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:59,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:02:59,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:02:59,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:02:59,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-19 08:02:59,625 INFO L87 Difference]: Start difference. First operand 1263 states and 1536 transitions. 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 08:03:03,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:03,117 INFO L93 Difference]: Finished difference Result 1652 states and 1956 transitions. [2023-11-19 08:03:03,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:03:03,118 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 08:03:03,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:03,129 INFO L225 Difference]: With dead ends: 1652 [2023-11-19 08:03:03,130 INFO L226 Difference]: Without dead ends: 1651 [2023-11-19 08:03:03,130 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 08:03:03,135 INFO L413 NwaCegarLoop]: 928 mSDtfsCounter, 418 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 1498 SdHoareTripleChecker+Invalid, 2247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1527 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:03,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 1498 Invalid, 2247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 720 Invalid, 0 Unknown, 1527 Unchecked, 3.4s Time] [2023-11-19 08:03:03,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2023-11-19 08:03:03,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1263. [2023-11-19 08:03:03,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 742 states have (on average 2.0525606469002695) internal successors, (1523), 1254 states have internal predecessors, (1523), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 08:03:03,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1535 transitions. [2023-11-19 08:03:03,196 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1535 transitions. Word has length 4 [2023-11-19 08:03:03,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:03,197 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 1535 transitions. [2023-11-19 08:03:03,197 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 08:03:03,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1535 transitions. [2023-11-19 08:03:03,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 08:03:03,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:03,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:03,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:03,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:03,401 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-19 08:03:03,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:03,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1654943313, now seen corresponding path program 1 times [2023-11-19 08:03:03,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:03:03,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648441425] [2023-11-19 08:03:03,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:03,411 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 08:03:03,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:03:03,413 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:03,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:03,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 08:03:03,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:03,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-11-19 08:03:03,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2023-11-19 08:03:03,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:03:03,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-19 08:03:03,772 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-19 08:03:03,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-19 08:03:03,803 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 08:03:03,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:03:03,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:03:03,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648441425] [2023-11-19 08:03:03,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648441425] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:03,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:03,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:03,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271638885] [2023-11-19 08:03:03,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:03,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:03:03,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:03:03,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:03:03,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:03:03,818 INFO L87 Difference]: Start difference. First operand 1263 states and 1535 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:07,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:07,821 INFO L93 Difference]: Finished difference Result 1266 states and 1539 transitions. [2023-11-19 08:03:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:03:07,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 08:03:07,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:07,833 INFO L225 Difference]: With dead ends: 1266 [2023-11-19 08:03:07,833 INFO L226 Difference]: Without dead ends: 1266 [2023-11-19 08:03:07,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:03:07,835 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 1073 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:07,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 415 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-19 08:03:07,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2023-11-19 08:03:07,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1045. [2023-11-19 08:03:07,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 535 states have (on average 2.041121495327103) internal successors, (1092), 1037 states have internal predecessors, (1092), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:03:07,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1102 transitions. [2023-11-19 08:03:07,870 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1102 transitions. Word has length 8 [2023-11-19 08:03:07,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:07,871 INFO L495 AbstractCegarLoop]: Abstraction has 1045 states and 1102 transitions. [2023-11-19 08:03:07,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:07,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1102 transitions. [2023-11-19 08:03:07,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 08:03:07,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:07,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:07,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:08,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:08,075 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-19 08:03:08,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:08,076 INFO L85 PathProgramCache]: Analyzing trace with hash 236364828, now seen corresponding path program 1 times [2023-11-19 08:03:08,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:03:08,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507646944] [2023-11-19 08:03:08,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:08,077 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 08:03:08,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:03:08,079 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:08,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:08,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:03:08,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:08,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2023-11-19 08:03:08,252 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 08:03:08,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:03:08,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:03:08,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507646944] [2023-11-19 08:03:08,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507646944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:08,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:08,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:08,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396144192] [2023-11-19 08:03:08,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:08,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:08,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:03:08,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:08,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:08,269 INFO L87 Difference]: Start difference. First operand 1045 states and 1102 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 08:03:10,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:10,852 INFO L93 Difference]: Finished difference Result 1380 states and 1468 transitions. [2023-11-19 08:03:10,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:10,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2023-11-19 08:03:10,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:10,863 INFO L225 Difference]: With dead ends: 1380 [2023-11-19 08:03:10,863 INFO L226 Difference]: Without dead ends: 1380 [2023-11-19 08:03:10,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 08:03:10,865 INFO L413 NwaCegarLoop]: 950 mSDtfsCounter, 985 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:10,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 1206 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-19 08:03:10,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2023-11-19 08:03:10,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 997. [2023-11-19 08:03:10,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 535 states have (on average 1.9514018691588786) internal successors, (1044), 989 states have internal predecessors, (1044), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:03:10,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1054 transitions. [2023-11-19 08:03:10,899 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1054 transitions. Word has length 9 [2023-11-19 08:03:10,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:10,900 INFO L495 AbstractCegarLoop]: Abstraction has 997 states and 1054 transitions. [2023-11-19 08:03:10,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 08:03:10,901 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1054 transitions. [2023-11-19 08:03:10,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 08:03:10,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:10,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:10,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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)] Ended with exit code 0 [2023-11-19 08:03:11,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:11,105 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-19 08:03:11,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:11,105 INFO L85 PathProgramCache]: Analyzing trace with hash 236364829, now seen corresponding path program 1 times [2023-11-19 08:03:11,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:03:11,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442634934] [2023-11-19 08:03:11,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:11,106 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 08:03:11,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:03:11,109 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:11,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:11,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:03:11,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:11,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-11-19 08:03:11,348 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 08:03:11,348 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:03:11,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:03:11,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442634934] [2023-11-19 08:03:11,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442634934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:11,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:11,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:11,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384185992] [2023-11-19 08:03:11,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:11,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:11,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:03:11,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:11,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:11,352 INFO L87 Difference]: Start difference. First operand 997 states and 1054 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 08:03:14,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:14,962 INFO L93 Difference]: Finished difference Result 1459 states and 1550 transitions. [2023-11-19 08:03:14,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:14,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2023-11-19 08:03:14,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:14,971 INFO L225 Difference]: With dead ends: 1459 [2023-11-19 08:03:14,971 INFO L226 Difference]: Without dead ends: 1459 [2023-11-19 08:03:14,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 08:03:14,972 INFO L413 NwaCegarLoop]: 1156 mSDtfsCounter, 681 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:14,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1584 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-19 08:03:14,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2023-11-19 08:03:14,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1019. [2023-11-19 08:03:14,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 567 states have (on average 1.9400352733686066) internal successors, (1100), 1011 states have internal predecessors, (1100), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:03:15,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1110 transitions. [2023-11-19 08:03:15,002 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1110 transitions. Word has length 9 [2023-11-19 08:03:15,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:15,002 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1110 transitions. [2023-11-19 08:03:15,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 08:03:15,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1110 transitions. [2023-11-19 08:03:15,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 08:03:15,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:15,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:15,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:15,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:15,206 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr525REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-19 08:03:15,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:15,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1355556024, now seen corresponding path program 1 times [2023-11-19 08:03:15,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:03:15,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617035816] [2023-11-19 08:03:15,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:15,208 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 08:03:15,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:03:15,210 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:15,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:15,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:03:15,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:15,457 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 08:03:15,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:03:15,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:03:15,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617035816] [2023-11-19 08:03:15,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617035816] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:15,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:15,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:03:15,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961508837] [2023-11-19 08:03:15,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:15,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:03:15,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:03:15,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:03:15,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:03:15,460 INFO L87 Difference]: Start difference. First operand 1019 states and 1110 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 08:03:16,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:16,366 INFO L93 Difference]: Finished difference Result 1474 states and 1600 transitions. [2023-11-19 08:03:16,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:03:16,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2023-11-19 08:03:16,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:16,374 INFO L225 Difference]: With dead ends: 1474 [2023-11-19 08:03:16,374 INFO L226 Difference]: Without dead ends: 1474 [2023-11-19 08:03:16,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 08:03:16,376 INFO L413 NwaCegarLoop]: 1103 mSDtfsCounter, 551 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 2986 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:16,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 2986 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 08:03:16,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2023-11-19 08:03:16,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1266. [2023-11-19 08:03:16,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 813 states have (on average 1.920049200492005) internal successors, (1561), 1257 states have internal predecessors, (1561), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 08:03:16,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1573 transitions. [2023-11-19 08:03:16,409 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1573 transitions. Word has length 12 [2023-11-19 08:03:16,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:16,410 INFO L495 AbstractCegarLoop]: Abstraction has 1266 states and 1573 transitions. [2023-11-19 08:03:16,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 08:03:16,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1573 transitions. [2023-11-19 08:03:16,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 08:03:16,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:16,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:16,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:16,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:16,614 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr529ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-19 08:03:16,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:16,615 INFO L85 PathProgramCache]: Analyzing trace with hash -927436111, now seen corresponding path program 1 times [2023-11-19 08:03:16,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:03:16,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [875229469] [2023-11-19 08:03:16,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:16,615 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 08:03:16,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:03:16,616 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:16,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:16,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:03:16,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:16,915 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_44| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_44| (_ bv0 1))) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_44|) (_ bv0 1)))) is different from true [2023-11-19 08:03:16,916 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 08:03:16,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:03:16,916 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:03:16,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [875229469] [2023-11-19 08:03:16,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [875229469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:16,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:16,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:16,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827125453] [2023-11-19 08:03:16,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:16,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:03:16,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:03:16,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:03:16,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-19 08:03:16,918 INFO L87 Difference]: Start difference. First operand 1266 states and 1573 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 08:03:19,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:19,187 INFO L93 Difference]: Finished difference Result 1626 states and 2016 transitions. [2023-11-19 08:03:19,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:03:19,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2023-11-19 08:03:19,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:19,194 INFO L225 Difference]: With dead ends: 1626 [2023-11-19 08:03:19,194 INFO L226 Difference]: Without dead ends: 1622 [2023-11-19 08:03:19,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 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 08:03:19,195 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 324 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1455 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1371 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:19,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 1455 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 621 Invalid, 0 Unknown, 1371 Unchecked, 2.2s Time] [2023-11-19 08:03:19,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2023-11-19 08:03:19,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1350. [2023-11-19 08:03:19,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 896 states have (on average 1.9006696428571428) internal successors, (1703), 1340 states have internal predecessors, (1703), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 08:03:19,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1717 transitions. [2023-11-19 08:03:19,228 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1717 transitions. Word has length 13 [2023-11-19 08:03:19,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:19,228 INFO L495 AbstractCegarLoop]: Abstraction has 1350 states and 1717 transitions. [2023-11-19 08:03:19,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 08:03:19,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1717 transitions. [2023-11-19 08:03:19,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 08:03:19,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:19,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:19,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:19,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:19,434 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-19 08:03:19,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:19,434 INFO L85 PathProgramCache]: Analyzing trace with hash 729190072, now seen corresponding path program 1 times [2023-11-19 08:03:19,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:03:19,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291955781] [2023-11-19 08:03:19,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:19,435 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 08:03:19,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:03:19,436 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:19,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:19,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:03:19,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:19,598 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 08:03:19,598 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:03:19,598 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:03:19,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291955781] [2023-11-19 08:03:19,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291955781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:19,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:19,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:19,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270505438] [2023-11-19 08:03:19,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:19,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:19,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:03:19,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:19,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:19,602 INFO L87 Difference]: Start difference. First operand 1350 states and 1717 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 08:03:19,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:19,645 INFO L93 Difference]: Finished difference Result 1272 states and 1588 transitions. [2023-11-19 08:03:19,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:19,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2023-11-19 08:03:19,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:19,652 INFO L225 Difference]: With dead ends: 1272 [2023-11-19 08:03:19,652 INFO L226 Difference]: Without dead ends: 1272 [2023-11-19 08:03:19,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 08:03:19,655 INFO L413 NwaCegarLoop]: 980 mSDtfsCounter, 81 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:19,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1888 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:03:19,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2023-11-19 08:03:19,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1272. [2023-11-19 08:03:19,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 842 states have (on average 1.8693586698337292) internal successors, (1574), 1262 states have internal predecessors, (1574), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 08:03:19,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1588 transitions. [2023-11-19 08:03:19,686 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1588 transitions. Word has length 14 [2023-11-19 08:03:19,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:19,686 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 1588 transitions. [2023-11-19 08:03:19,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 08:03:19,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1588 transitions. [2023-11-19 08:03:19,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 08:03:19,688 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:19,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:19,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:19,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:19,891 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr364REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-19 08:03:19,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:19,891 INFO L85 PathProgramCache]: Analyzing trace with hash 672015314, now seen corresponding path program 1 times [2023-11-19 08:03:19,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:03:19,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419357389] [2023-11-19 08:03:19,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:19,892 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 08:03:19,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:03:19,893 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:19,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:20,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:03:20,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:20,062 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 08:03:20,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:03:20,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:03:20,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419357389] [2023-11-19 08:03:20,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419357389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:20,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:20,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:03:20,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564208839] [2023-11-19 08:03:20,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:20,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:03:20,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:03:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:03:20,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:03:20,065 INFO L87 Difference]: Start difference. First operand 1272 states and 1588 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 08:03:20,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:20,153 INFO L93 Difference]: Finished difference Result 1237 states and 1504 transitions. [2023-11-19 08:03:20,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:03:20,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2023-11-19 08:03:20,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:20,159 INFO L225 Difference]: With dead ends: 1237 [2023-11-19 08:03:20,159 INFO L226 Difference]: Without dead ends: 1237 [2023-11-19 08:03:20,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 08:03:20,160 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 62 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 2771 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:20,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 2771 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:03:20,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2023-11-19 08:03:20,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1234. [2023-11-19 08:03:20,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 818 states have (on average 1.8178484107579462) internal successors, (1487), 1224 states have internal predecessors, (1487), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 08:03:20,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 1501 transitions. [2023-11-19 08:03:20,187 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 1501 transitions. Word has length 16 [2023-11-19 08:03:20,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:20,188 INFO L495 AbstractCegarLoop]: Abstraction has 1234 states and 1501 transitions. [2023-11-19 08:03:20,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 08:03:20,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 1501 transitions. [2023-11-19 08:03:20,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 08:03:20,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:20,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:20,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:20,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:20,392 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-19 08:03:20,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:20,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1783704328, now seen corresponding path program 1 times [2023-11-19 08:03:20,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:03:20,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387669253] [2023-11-19 08:03:20,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:20,393 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 08:03:20,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:03:20,395 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:20,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:20,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:03:20,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:20,627 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 08:03:20,627 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:03:20,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:03:20,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387669253] [2023-11-19 08:03:20,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387669253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:20,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:20,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:20,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317894042] [2023-11-19 08:03:20,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:20,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:20,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:03:20,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:20,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:20,630 INFO L87 Difference]: Start difference. First operand 1234 states and 1501 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 08:03:20,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:20,666 INFO L93 Difference]: Finished difference Result 1174 states and 1415 transitions. [2023-11-19 08:03:20,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:20,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2023-11-19 08:03:20,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:20,673 INFO L225 Difference]: With dead ends: 1174 [2023-11-19 08:03:20,673 INFO L226 Difference]: Without dead ends: 1174 [2023-11-19 08:03:20,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 08:03:20,674 INFO L413 NwaCegarLoop]: 902 mSDtfsCounter, 81 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:20,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1732 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:03:20,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2023-11-19 08:03:20,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1174. [2023-11-19 08:03:20,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1174 states, 782 states have (on average 1.7915601023017902) internal successors, (1401), 1164 states have internal predecessors, (1401), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 08:03:20,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1415 transitions. [2023-11-19 08:03:20,698 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1415 transitions. Word has length 19 [2023-11-19 08:03:20,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:20,698 INFO L495 AbstractCegarLoop]: Abstraction has 1174 states and 1415 transitions. [2023-11-19 08:03:20,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 08:03:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1415 transitions. [2023-11-19 08:03:20,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 08:03:20,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:20,699 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] [2023-11-19 08:03:20,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:20,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:20,903 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-19 08:03:20,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:20,904 INFO L85 PathProgramCache]: Analyzing trace with hash 447904642, now seen corresponding path program 1 times [2023-11-19 08:03:20,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:03:20,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054310324] [2023-11-19 08:03:20,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:20,904 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 08:03:20,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:03:20,905 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:20,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ecb5a5f-fee2-472e-b60d-ea02c8d4e3e5/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 08:03:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:21,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:03:21,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:21,134 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 08:03:21,134 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:03:21,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:03:21,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054310324] [2023-11-19 08:03:21,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054310324] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:21,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:21,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:03:21,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871039911] [2023-11-19 08:03:21,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:21,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:03:21,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:03:21,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:03:21,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:03:21,136 INFO L87 Difference]: Start difference. First operand 1174 states and 1415 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 08:03:21,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:21,235 INFO L93 Difference]: Finished difference Result 1146 states and 1359 transitions. [2023-11-19 08:03:21,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:03:21,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2023-11-19 08:03:21,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:21,240 INFO L225 Difference]: With dead ends: 1146 [2023-11-19 08:03:21,240 INFO L226 Difference]: Without dead ends: 1146 [2023-11-19 08:03:21,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 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 08:03:21,240 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 62 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 2537 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:21,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 2537 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:03:21,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2023-11-19 08:03:21,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 1144. [2023-11-19 08:03:21,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 766 states have (on average 1.7532637075718016) internal successors, (1343), 1134 states have internal predecessors, (1343), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 08:03:21,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1357 transitions. [2023-11-19 08:03:21,274 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1357 transitions. Word has length 21 [2023-11-19 08:03:21,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:21,276 INFO L495 AbstractCegarLoop]: Abstraction has 1144 states and 1357 transitions. [2023-11-19 08:03:21,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 08:03:21,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1357 transitions. [2023-11-19 08:03:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31