./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/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_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/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_c156cea4-32c1-483d-908b-c5f9ed02bcf2/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 c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:37,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:37,277 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:46:37,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:37,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:37,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:37,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:37,329 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:37,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:37,331 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:37,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:37,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:37,333 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:37,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:37,335 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:37,335 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:37,336 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:37,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:37,337 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:46:37,338 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:46:37,339 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:46:37,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:37,340 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:46:37,341 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:37,341 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:37,342 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:37,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:37,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:37,344 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:37,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:37,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:37,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:37,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:37,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:46:37,347 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:37,348 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:37,348 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:37,349 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:37,349 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_c156cea4-32c1-483d-908b-c5f9ed02bcf2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c [2023-11-19 07:46:37,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:37,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:37,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:37,674 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:37,675 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:37,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2023-11-19 07:46:40,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:41,217 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:41,224 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2023-11-19 07:46:41,252 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/data/92871f60f/f1cff2792dc247e89ef97a4357861785/FLAG0994afb2b [2023-11-19 07:46:41,266 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/data/92871f60f/f1cff2792dc247e89ef97a4357861785 [2023-11-19 07:46:41,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:41,273 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:41,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:41,274 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:41,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:41,280 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:41" (1/1) ... [2023-11-19 07:46:41,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35047c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:41, skipping insertion in model container [2023-11-19 07:46:41,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:41" (1/1) ... [2023-11-19 07:46:41,359 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:42,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:42,105 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-19 07:46:42,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c7cb3d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:42, skipping insertion in model container [2023-11-19 07:46:42,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:42,107 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:46:42,109 INFO L158 Benchmark]: Toolchain (without parser) took 835.21ms. Allocated memory is still 157.3MB. Free memory was 115.5MB in the beginning and 92.9MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:42,110 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:46:42,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 832.67ms. Allocated memory is still 157.3MB. Free memory was 115.4MB in the beginning and 92.9MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:42,114 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 832.67ms. Allocated memory is still 157.3MB. Free memory was 115.4MB in the beginning and 92.9MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/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_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/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_c156cea4-32c1-483d-908b-c5f9ed02bcf2/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 c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:44,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:44,829 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-19 07:46:44,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:44,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:44,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:44,869 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:44,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:44,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:44,872 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:44,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:44,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:44,874 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:44,875 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:44,876 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:44,876 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:44,877 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:44,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:44,878 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:46:44,879 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:46:44,880 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:46:44,880 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:44,881 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:46:44,882 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:46:44,882 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:46:44,883 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:44,884 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:44,884 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:44,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:44,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:44,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:44,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:44,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:44,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:44,888 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:46:44,889 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:46:44,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:44,890 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:44,890 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:44,890 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:46:44,891 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:44,892 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_c156cea4-32c1-483d-908b-c5f9ed02bcf2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c [2023-11-19 07:46:45,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:45,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:45,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:45,383 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:45,384 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:45,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2023-11-19 07:46:48,620 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:49,070 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:49,071 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2023-11-19 07:46:49,091 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/data/2ea450a5f/1d9030e9d08b4d9e99e722f5a0511b5c/FLAG770da8d96 [2023-11-19 07:46:49,107 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/data/2ea450a5f/1d9030e9d08b4d9e99e722f5a0511b5c [2023-11-19 07:46:49,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:49,112 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:49,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:49,113 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:49,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:49,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:49" (1/1) ... [2023-11-19 07:46:49,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465748b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:49, skipping insertion in model container [2023-11-19 07:46:49,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:49" (1/1) ... [2023-11-19 07:46:49,191 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:50,010 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:50,025 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:46:50,051 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:50,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:50,208 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:50,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:50,378 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:50,386 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:50,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:50 WrapperNode [2023-11-19 07:46:50,387 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:50,388 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:50,389 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:50,389 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:50,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:50" (1/1) ... [2023-11-19 07:46:50,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:50" (1/1) ... [2023-11-19 07:46:50,536 INFO L138 Inliner]: procedures = 180, calls = 390, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1418 [2023-11-19 07:46:50,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:50,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:50,538 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:50,538 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:50,547 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:50" (1/1) ... [2023-11-19 07:46:50,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:50" (1/1) ... [2023-11-19 07:46:50,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:50" (1/1) ... [2023-11-19 07:46:50,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:50" (1/1) ... [2023-11-19 07:46:50,704 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:50" (1/1) ... [2023-11-19 07:46:50,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:50" (1/1) ... [2023-11-19 07:46:50,745 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:50" (1/1) ... [2023-11-19 07:46:50,761 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:50" (1/1) ... [2023-11-19 07:46:50,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:50,788 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:50,789 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:50,789 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:50,790 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:50" (1/1) ... [2023-11-19 07:46:50,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:50,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:50,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:50,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:50,877 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-19 07:46:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-19 07:46:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:46:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:46:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:46:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:46:50,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:46:50,879 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:46:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:46:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:46:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:46:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:46:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:46:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:46:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:46:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:51,207 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:51,213 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:51,250 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:46:58,525 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:58,551 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:58,551 INFO L302 CfgBuilder]: Removed 83 assume(true) statements. [2023-11-19 07:46:58,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:58 BoogieIcfgContainer [2023-11-19 07:46:58,567 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:58,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:46:58,572 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:46:58,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:46:58,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:49" (1/3) ... [2023-11-19 07:46:58,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75190825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:58, skipping insertion in model container [2023-11-19 07:46:58,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:50" (2/3) ... [2023-11-19 07:46:58,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75190825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:58, skipping insertion in model container [2023-11-19 07:46:58,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:58" (3/3) ... [2023-11-19 07:46:58,581 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-1.i [2023-11-19 07:46:58,600 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:46:58,601 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 728 error locations. [2023-11-19 07:46:58,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:46:58,702 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;@371d02fa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:46:58,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 728 error locations. [2023-11-19 07:46:58,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 1468 states, 729 states have (on average 2.2181069958847734) internal successors, (1617), 1458 states have internal predecessors, (1617), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:46:58,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 07:46:58,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:58,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:46:58,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 725 more)] === [2023-11-19 07:46:58,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:58,733 INFO L85 PathProgramCache]: Analyzing trace with hash 45876316, now seen corresponding path program 1 times [2023-11-19 07:46:58,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:46:58,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098150665] [2023-11-19 07:46:58,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:58,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:46:58,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:46:58,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:46:58,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 07:46:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:58,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:46:58,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:59,081 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 07:46:59,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:59,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:46:59,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:46:59,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098150665] [2023-11-19 07:46:59,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098150665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:59,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:59,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:46:59,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329116986] [2023-11-19 07:46:59,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:59,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:46:59,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:46:59,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:46:59,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:46:59,159 INFO L87 Difference]: Start difference. First operand has 1468 states, 729 states have (on average 2.2181069958847734) internal successors, (1617), 1458 states have internal predecessors, (1617), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:03,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:03,016 INFO L93 Difference]: Finished difference Result 1713 states and 1839 transitions. [2023-11-19 07:47:03,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:03,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-19 07:47:03,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:03,045 INFO L225 Difference]: With dead ends: 1713 [2023-11-19 07:47:03,046 INFO L226 Difference]: Without dead ends: 1711 [2023-11-19 07:47:03,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:03,051 INFO L413 NwaCegarLoop]: 970 mSDtfsCounter, 1375 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:03,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 1247 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-19 07:47:03,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2023-11-19 07:47:03,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1435. [2023-11-19 07:47:03,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1435 states, 799 states have (on average 1.9424280350438048) internal successors, (1552), 1425 states have internal predecessors, (1552), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:47:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1576 transitions. [2023-11-19 07:47:03,179 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1576 transitions. Word has length 5 [2023-11-19 07:47:03,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:03,180 INFO L495 AbstractCegarLoop]: Abstraction has 1435 states and 1576 transitions. [2023-11-19 07:47:03,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:03,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1576 transitions. [2023-11-19 07:47:03,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 07:47:03,181 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:03,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:47:03,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:03,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:03,384 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 725 more)] === [2023-11-19 07:47:03,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:03,385 INFO L85 PathProgramCache]: Analyzing trace with hash 45876317, now seen corresponding path program 1 times [2023-11-19 07:47:03,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:03,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913256229] [2023-11-19 07:47:03,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:03,386 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:03,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:03,387 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:47:03,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 07:47:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:03,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:47:03,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:03,586 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 07:47:03,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:03,614 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:03,614 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:03,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913256229] [2023-11-19 07:47:03,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913256229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:03,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:03,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:47:03,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594754606] [2023-11-19 07:47:03,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:03,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:03,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:03,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:03,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:03,619 INFO L87 Difference]: Start difference. First operand 1435 states and 1576 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:08,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:08,357 INFO L93 Difference]: Finished difference Result 1966 states and 2157 transitions. [2023-11-19 07:47:08,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:08,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-19 07:47:08,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:08,369 INFO L225 Difference]: With dead ends: 1966 [2023-11-19 07:47:08,370 INFO L226 Difference]: Without dead ends: 1966 [2023-11-19 07:47:08,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:08,371 INFO L413 NwaCegarLoop]: 1362 mSDtfsCounter, 753 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:08,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 1975 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-19 07:47:08,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2023-11-19 07:47:08,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1595. [2023-11-19 07:47:08,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 969 states have (on average 1.9215686274509804) internal successors, (1862), 1585 states have internal predecessors, (1862), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:47:08,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 1886 transitions. [2023-11-19 07:47:08,424 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 1886 transitions. Word has length 5 [2023-11-19 07:47:08,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:08,425 INFO L495 AbstractCegarLoop]: Abstraction has 1595 states and 1886 transitions. [2023-11-19 07:47:08,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:08,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 1886 transitions. [2023-11-19 07:47:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:47:08,426 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:08,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:47:08,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/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)] Ended with exit code 0 [2023-11-19 07:47:08,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:08,629 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 725 more)] === [2023-11-19 07:47:08,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:08,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1423857071, now seen corresponding path program 1 times [2023-11-19 07:47:08,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:08,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154194759] [2023-11-19 07:47:08,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:08,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:08,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:08,632 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:47:08,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 07:47:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:08,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:47:08,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:08,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:08,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:08,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154194759] [2023-11-19 07:47:08,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154194759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:08,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:08,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:08,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169364861] [2023-11-19 07:47:08,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:08,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:08,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:08,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:08,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:08,795 INFO L87 Difference]: Start difference. First operand 1595 states and 1886 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:08,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:08,994 INFO L93 Difference]: Finished difference Result 3171 states and 3753 transitions. [2023-11-19 07:47:08,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:08,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-19 07:47:08,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:09,015 INFO L225 Difference]: With dead ends: 3171 [2023-11-19 07:47:09,015 INFO L226 Difference]: Without dead ends: 3171 [2023-11-19 07:47:09,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:09,019 INFO L413 NwaCegarLoop]: 1698 mSDtfsCounter, 1383 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:09,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 3115 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:47:09,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2023-11-19 07:47:09,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 1597. [2023-11-19 07:47:09,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1597 states, 971 states have (on average 1.9196704428424305) internal successors, (1864), 1587 states have internal predecessors, (1864), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:47:09,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 1888 transitions. [2023-11-19 07:47:09,106 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 1888 transitions. Word has length 6 [2023-11-19 07:47:09,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:09,106 INFO L495 AbstractCegarLoop]: Abstraction has 1597 states and 1888 transitions. [2023-11-19 07:47:09,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:09,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 1888 transitions. [2023-11-19 07:47:09,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 07:47:09,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:09,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:09,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:09,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:09,311 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 725 more)] === [2023-11-19 07:47:09,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:09,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1344610650, now seen corresponding path program 1 times [2023-11-19 07:47:09,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:09,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [912896421] [2023-11-19 07:47:09,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:09,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:09,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:09,315 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:47:09,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 07:47:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:09,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:47:09,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:09,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:09,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:09,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:09,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [912896421] [2023-11-19 07:47:09,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [912896421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:09,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:09,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:09,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402564398] [2023-11-19 07:47:09,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:09,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:09,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:09,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:09,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:09,535 INFO L87 Difference]: Start difference. First operand 1597 states and 1888 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:09,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:09,597 INFO L93 Difference]: Finished difference Result 1555 states and 1845 transitions. [2023-11-19 07:47:09,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:09,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 07:47:09,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:09,607 INFO L225 Difference]: With dead ends: 1555 [2023-11-19 07:47:09,608 INFO L226 Difference]: Without dead ends: 1555 [2023-11-19 07:47:09,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:09,609 INFO L413 NwaCegarLoop]: 1372 mSDtfsCounter, 81 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 2672 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 07:47:09,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 2672 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:47:09,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2023-11-19 07:47:09,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1555. [2023-11-19 07:47:09,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 953 states have (on average 1.9108079748163693) internal successors, (1821), 1545 states have internal predecessors, (1821), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:47:09,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 1845 transitions. [2023-11-19 07:47:09,654 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 1845 transitions. Word has length 11 [2023-11-19 07:47:09,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:09,654 INFO L495 AbstractCegarLoop]: Abstraction has 1555 states and 1845 transitions. [2023-11-19 07:47:09,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:09,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 1845 transitions. [2023-11-19 07:47:09,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 07:47:09,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:09,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:09,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:09,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:09,859 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 725 more)] === [2023-11-19 07:47:09,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:09,860 INFO L85 PathProgramCache]: Analyzing trace with hash 614317568, now seen corresponding path program 1 times [2023-11-19 07:47:09,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:09,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788086005] [2023-11-19 07:47:09,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:09,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:09,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:09,863 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:47:09,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 07:47:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:10,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:47:10,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:10,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:10,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:10,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:10,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788086005] [2023-11-19 07:47:10,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788086005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:10,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:10,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:47:10,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119022448] [2023-11-19 07:47:10,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:10,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:47:10,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:10,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:47:10,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:47:10,106 INFO L87 Difference]: Start difference. First operand 1555 states and 1845 transitions. Second operand has 4 states, 4 states have (on average 3.25) 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 07:47:10,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:10,231 INFO L93 Difference]: Finished difference Result 1534 states and 1817 transitions. [2023-11-19 07:47:10,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:10,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) 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 07:47:10,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:10,240 INFO L225 Difference]: With dead ends: 1534 [2023-11-19 07:47:10,241 INFO L226 Difference]: Without dead ends: 1534 [2023-11-19 07:47:10,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:47:10,242 INFO L413 NwaCegarLoop]: 1327 mSDtfsCounter, 62 mSDsluCounter, 2620 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 3947 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 07:47:10,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 3947 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:47:10,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2023-11-19 07:47:10,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1533. [2023-11-19 07:47:10,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 945 states have (on average 1.8962962962962964) internal successors, (1792), 1523 states have internal predecessors, (1792), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:47:10,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1816 transitions. [2023-11-19 07:47:10,283 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1816 transitions. Word has length 13 [2023-11-19 07:47:10,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:10,283 INFO L495 AbstractCegarLoop]: Abstraction has 1533 states and 1816 transitions. [2023-11-19 07:47:10,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) 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 07:47:10,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1816 transitions. [2023-11-19 07:47:10,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 07:47:10,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:10,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:10,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/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 07:47:10,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:10,489 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 725 more)] === [2023-11-19 07:47:10,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:10,489 INFO L85 PathProgramCache]: Analyzing trace with hash -957630610, now seen corresponding path program 1 times [2023-11-19 07:47:10,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:10,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520770587] [2023-11-19 07:47:10,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:10,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:10,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:10,492 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:47:10,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-19 07:47:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:10,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:47:10,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:10,726 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 07:47:10,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:10,836 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:10,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:10,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520770587] [2023-11-19 07:47:10,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520770587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:10,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:10,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:10,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246092558] [2023-11-19 07:47:10,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:10,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:47:10,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:10,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:47:10,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:47:10,842 INFO L87 Difference]: Start difference. First operand 1533 states and 1816 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:15,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:15,295 INFO L93 Difference]: Finished difference Result 1806 states and 2074 transitions. [2023-11-19 07:47:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:15,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-11-19 07:47:15,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:15,307 INFO L225 Difference]: With dead ends: 1806 [2023-11-19 07:47:15,307 INFO L226 Difference]: Without dead ends: 1806 [2023-11-19 07:47:15,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:47:15,308 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 1304 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 1545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:15,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 1548 Invalid, 1545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1531 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-19 07:47:15,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1806 states. [2023-11-19 07:47:15,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1806 to 1529. [2023-11-19 07:47:15,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 945 states have (on average 1.892063492063492) internal successors, (1788), 1519 states have internal predecessors, (1788), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:47:15,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 1812 transitions. [2023-11-19 07:47:15,352 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 1812 transitions. Word has length 27 [2023-11-19 07:47:15,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:15,353 INFO L495 AbstractCegarLoop]: Abstraction has 1529 states and 1812 transitions. [2023-11-19 07:47:15,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:15,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 1812 transitions. [2023-11-19 07:47:15,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 07:47:15,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:15,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:15,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:15,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:15,558 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 725 more)] === [2023-11-19 07:47:15,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:15,559 INFO L85 PathProgramCache]: Analyzing trace with hash -957630609, now seen corresponding path program 1 times [2023-11-19 07:47:15,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:15,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795751648] [2023-11-19 07:47:15,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:15,560 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:15,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:15,561 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:47:15,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-19 07:47:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:15,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:47:15,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:15,783 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 07:47:16,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:16,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:16,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:16,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795751648] [2023-11-19 07:47:16,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795751648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:16,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:16,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:16,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834219664] [2023-11-19 07:47:16,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:16,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:47:16,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:16,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:47:16,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:47:16,015 INFO L87 Difference]: Start difference. First operand 1529 states and 1812 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:21,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:21,848 INFO L93 Difference]: Finished difference Result 1897 states and 2080 transitions. [2023-11-19 07:47:21,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:21,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-11-19 07:47:21,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:21,862 INFO L225 Difference]: With dead ends: 1897 [2023-11-19 07:47:21,863 INFO L226 Difference]: Without dead ends: 1897 [2023-11-19 07:47:21,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:47:21,864 INFO L413 NwaCegarLoop]: 1066 mSDtfsCounter, 684 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:21,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 2301 Invalid, 1595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1592 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-19 07:47:21,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2023-11-19 07:47:21,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1525. [2023-11-19 07:47:21,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 945 states have (on average 1.8878306878306879) internal successors, (1784), 1515 states have internal predecessors, (1784), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:47:21,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 1808 transitions. [2023-11-19 07:47:21,918 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 1808 transitions. Word has length 27 [2023-11-19 07:47:21,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:21,919 INFO L495 AbstractCegarLoop]: Abstraction has 1525 states and 1808 transitions. [2023-11-19 07:47:21,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:21,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 1808 transitions. [2023-11-19 07:47:21,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 07:47:21,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:21,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:21,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:22,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:22,125 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 725 more)] === [2023-11-19 07:47:22,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:22,126 INFO L85 PathProgramCache]: Analyzing trace with hash -3860248, now seen corresponding path program 1 times [2023-11-19 07:47:22,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:22,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223567635] [2023-11-19 07:47:22,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:22,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:22,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:22,128 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:47:22,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-19 07:47:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:22,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:47:22,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:22,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:22,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:22,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:22,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223567635] [2023-11-19 07:47:22,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223567635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:22,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:22,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:47:22,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724956206] [2023-11-19 07:47:22,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:22,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:47:22,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:22,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:47:22,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:47:22,461 INFO L87 Difference]: Start difference. First operand 1525 states and 1808 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:22,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:22,563 INFO L93 Difference]: Finished difference Result 1519 states and 1798 transitions. [2023-11-19 07:47:22,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:22,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 43 [2023-11-19 07:47:22,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:22,572 INFO L225 Difference]: With dead ends: 1519 [2023-11-19 07:47:22,572 INFO L226 Difference]: Without dead ends: 1519 [2023-11-19 07:47:22,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:47:22,573 INFO L413 NwaCegarLoop]: 1321 mSDtfsCounter, 31 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3925 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:22,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3925 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:47:22,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2023-11-19 07:47:22,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1519. [2023-11-19 07:47:22,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 939 states have (on average 1.8892438764643238) internal successors, (1774), 1509 states have internal predecessors, (1774), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:47:22,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 1798 transitions. [2023-11-19 07:47:22,611 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 1798 transitions. Word has length 43 [2023-11-19 07:47:22,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:22,612 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 1798 transitions. [2023-11-19 07:47:22,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:22,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 1798 transitions. [2023-11-19 07:47:22,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 07:47:22,616 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:22,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:22,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-19 07:47:22,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:22,821 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 725 more)] === [2023-11-19 07:47:22,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:22,822 INFO L85 PathProgramCache]: Analyzing trace with hash 168131124, now seen corresponding path program 1 times [2023-11-19 07:47:22,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:22,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62459754] [2023-11-19 07:47:22,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:22,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:22,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:22,824 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:47:22,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-19 07:47:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:23,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:47:23,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:23,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:23,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:23,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:23,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62459754] [2023-11-19 07:47:23,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62459754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:23,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:23,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:23,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130266628] [2023-11-19 07:47:23,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:23,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:23,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:23,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:23,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:23,417 INFO L87 Difference]: Start difference. First operand 1519 states and 1798 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:23,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:23,519 INFO L93 Difference]: Finished difference Result 1566 states and 1845 transitions. [2023-11-19 07:47:23,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:23,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2023-11-19 07:47:23,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:23,528 INFO L225 Difference]: With dead ends: 1566 [2023-11-19 07:47:23,529 INFO L226 Difference]: Without dead ends: 1566 [2023-11-19 07:47:23,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:23,530 INFO L413 NwaCegarLoop]: 1336 mSDtfsCounter, 67 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:23,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 2577 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:47:23,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2023-11-19 07:47:23,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1566. [2023-11-19 07:47:23,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 986 states have (on average 1.8468559837728196) internal successors, (1821), 1556 states have internal predecessors, (1821), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:47:23,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 1845 transitions. [2023-11-19 07:47:23,565 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 1845 transitions. Word has length 51 [2023-11-19 07:47:23,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:23,565 INFO L495 AbstractCegarLoop]: Abstraction has 1566 states and 1845 transitions. [2023-11-19 07:47:23,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:23,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 1845 transitions. [2023-11-19 07:47:23,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 07:47:23,567 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:23,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:23,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:23,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:23,777 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 725 more)] === [2023-11-19 07:47:23,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:23,777 INFO L85 PathProgramCache]: Analyzing trace with hash 754975115, now seen corresponding path program 1 times [2023-11-19 07:47:23,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:23,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005538894] [2023-11-19 07:47:23,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:23,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:23,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:23,780 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:47:23,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-19 07:47:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:24,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:47:24,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:24,151 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 07:47:24,160 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 07:47:24,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:47:24,804 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 07:47:24,823 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-19 07:47:24,823 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 07:47:24,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:24,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:24,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:24,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005538894] [2023-11-19 07:47:24,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005538894] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:24,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:24,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:24,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770708159] [2023-11-19 07:47:24,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:24,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:47:24,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:24,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:47:24,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:47:24,850 INFO L87 Difference]: Start difference. First operand 1566 states and 1845 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:29,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:47:29,088 INFO L93 Difference]: Finished difference Result 1758 states and 2022 transitions. [2023-11-19 07:47:29,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:47:29,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2023-11-19 07:47:29,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:47:29,097 INFO L225 Difference]: With dead ends: 1758 [2023-11-19 07:47:29,097 INFO L226 Difference]: Without dead ends: 1758 [2023-11-19 07:47:29,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 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 07:47:29,098 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 1542 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:47:29,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1558 Valid, 634 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-19 07:47:29,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2023-11-19 07:47:29,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1312. [2023-11-19 07:47:29,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 816 states have (on average 1.7352941176470589) internal successors, (1416), 1302 states have internal predecessors, (1416), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 07:47:29,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1440 transitions. [2023-11-19 07:47:29,143 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1440 transitions. Word has length 54 [2023-11-19 07:47:29,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:47:29,144 INFO L495 AbstractCegarLoop]: Abstraction has 1312 states and 1440 transitions. [2023-11-19 07:47:29,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:29,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1440 transitions. [2023-11-19 07:47:29,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 07:47:29,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:47:29,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:29,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:47:29,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:29,352 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 725 more)] === [2023-11-19 07:47:29,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:29,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1572100217, now seen corresponding path program 1 times [2023-11-19 07:47:29,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:47:29,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568929552] [2023-11-19 07:47:29,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:29,354 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:47:29,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:47:29,355 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:47:29,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c156cea4-32c1-483d-908b-c5f9ed02bcf2/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-19 07:47:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:29,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:47:29,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:47:29,681 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 07:47:29,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-19 07:47:29,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-19 07:47:29,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:29,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:47:29,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:47:29,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568929552] [2023-11-19 07:47:29,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568929552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:29,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:29,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:47:29,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055877806] [2023-11-19 07:47:29,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:29,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:47:29,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:47:29,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:47:29,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:47:29,747 INFO L87 Difference]: Start difference. First operand 1312 states and 1440 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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)