./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a 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_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU --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 b6787eb3a37902efa71d2cd0d9e143f31d9492f6d095b3afd518dba74579db5b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:14:58,122 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:14:58,184 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:14:58,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:14:58,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:14:58,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:14:58,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:14:58,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:14:58,216 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:14:58,216 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:14:58,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:14:58,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:14:58,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:14:58,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:14:58,221 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:14:58,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:14:58,222 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:14:58,223 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:14:58,223 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:14:58,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:14:58,229 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:14:58,230 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:14:58,230 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:14:58,231 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:14:58,231 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:14:58,231 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:14:58,232 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:14:58,232 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:14:58,232 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:14:58,233 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:14:58,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:14:58,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:14:58,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:14:58,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:14:58,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:14:58,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:14:58,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:14:58,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:14:58,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:14:58,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:14:58,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:14:58,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:14:58,237 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_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6787eb3a37902efa71d2cd0d9e143f31d9492f6d095b3afd518dba74579db5b [2024-10-31 22:14:58,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:14:58,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:14:58,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:14:58,528 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:14:58,529 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:14:58,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i Unable to find full path for "g++" [2024-10-31 22:15:00,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:15:00,874 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:15:00,875 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i [2024-10-31 22:15:00,896 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/data/d380dd110/59f6333137de4cf6bd7df634cfe0fd90/FLAGde07bd3e1 [2024-10-31 22:15:00,913 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/data/d380dd110/59f6333137de4cf6bd7df634cfe0fd90 [2024-10-31 22:15:00,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:15:00,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:15:00,919 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:00,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:15:00,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:15:00,931 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:00" (1/1) ... [2024-10-31 22:15:00,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d4ce5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:00, skipping insertion in model container [2024-10-31 22:15:00,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:00" (1/1) ... [2024-10-31 22:15:00,991 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:01,353 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:01,445 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:01,460 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:01,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:01,484 ERROR L321 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) [2024-10-31 22:15:01,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@60cf4a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:01, skipping insertion in model container [2024-10-31 22:15:01,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:01,486 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-31 22:15:01,488 INFO L158 Benchmark]: Toolchain (without parser) took 569.39ms. Allocated memory is still 138.4MB. Free memory was 98.4MB in the beginning and 82.0MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-31 22:15:01,488 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 138.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:15:01,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.59ms. Allocated memory is still 138.4MB. Free memory was 98.0MB in the beginning and 82.0MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-31 22:15:01,491 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 138.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.59ms. Allocated memory is still 138.4MB. Free memory was 98.0MB in the beginning and 82.0MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 607]: 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_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU --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 b6787eb3a37902efa71d2cd0d9e143f31d9492f6d095b3afd518dba74579db5b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:15:04,064 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:15:04,172 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-31 22:15:04,181 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:15:04,182 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:15:04,237 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:15:04,238 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:15:04,240 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:15:04,241 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:15:04,243 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:15:04,244 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:15:04,244 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:15:04,246 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:15:04,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:15:04,249 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:15:04,249 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:15:04,250 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:15:04,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:15:04,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:15:04,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:15:04,254 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:15:04,256 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:15:04,256 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:15:04,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:15:04,257 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:15:04,258 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 22:15:04,258 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:15:04,259 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 22:15:04,259 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:15:04,259 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:15:04,261 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:15:04,262 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:15:04,262 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:15:04,262 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:15:04,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:15:04,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:04,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:15:04,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:15:04,265 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 22:15:04,265 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 22:15:04,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:15:04,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:15:04,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:15:04,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:15:04,267 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 22:15:04,267 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_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6787eb3a37902efa71d2cd0d9e143f31d9492f6d095b3afd518dba74579db5b [2024-10-31 22:15:04,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:15:04,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:15:04,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:15:04,794 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:15:04,794 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:15:04,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i Unable to find full path for "g++" [2024-10-31 22:15:07,214 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:15:07,522 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:15:07,526 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i [2024-10-31 22:15:07,546 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/data/0900f2ec1/456eb6895ec247aba7db396d345032bc/FLAG16de223ba [2024-10-31 22:15:07,565 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/data/0900f2ec1/456eb6895ec247aba7db396d345032bc [2024-10-31 22:15:07,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:15:07,571 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:15:07,573 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:07,573 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:15:07,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:15:07,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:07" (1/1) ... [2024-10-31 22:15:07,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c3adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:07, skipping insertion in model container [2024-10-31 22:15:07,586 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:07" (1/1) ... [2024-10-31 22:15:07,648 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:08,258 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:08,365 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:08,376 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:08,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:08,416 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-31 22:15:08,442 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:08,496 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:08,537 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:08,542 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-10-31 22:15:08,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:08,563 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:15:08,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:08,789 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:15:08,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:08 WrapperNode [2024-10-31 22:15:08,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:08,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:08,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:15:08,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:15:08,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:08" (1/1) ... [2024-10-31 22:15:08,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:08" (1/1) ... [2024-10-31 22:15:08,902 INFO L138 Inliner]: procedures = 167, calls = 78, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 84 [2024-10-31 22:15:08,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:08,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:15:08,906 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:15:08,906 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:15:08,922 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:08" (1/1) ... [2024-10-31 22:15:08,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:08" (1/1) ... [2024-10-31 22:15:08,926 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:08" (1/1) ... [2024-10-31 22:15:08,944 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-10-31 22:15:08,945 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:08" (1/1) ... [2024-10-31 22:15:08,945 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:08" (1/1) ... [2024-10-31 22:15:08,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:08" (1/1) ... [2024-10-31 22:15:08,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:08" (1/1) ... [2024-10-31 22:15:08,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:08" (1/1) ... [2024-10-31 22:15:08,966 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:08" (1/1) ... [2024-10-31 22:15:08,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:15:08,975 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:15:08,975 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:15:08,975 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:15:08,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:08" (1/1) ... [2024-10-31 22:15:08,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:09,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:09,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:15:09,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:15:09,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-31 22:15:09,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-31 22:15:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:15:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:15:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:15:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:15:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:15:09,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:15:09,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:15:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-31 22:15:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-31 22:15:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:15:09,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:15:09,251 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:15:09,254 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:15:09,693 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-10-31 22:15:09,693 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:15:09,718 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:15:09,719 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 22:15:09,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:09 BoogieIcfgContainer [2024-10-31 22:15:09,721 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:15:09,725 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:15:09,725 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:15:09,729 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:15:09,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:15:07" (1/3) ... [2024-10-31 22:15:09,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50132bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:09, skipping insertion in model container [2024-10-31 22:15:09,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:08" (2/3) ... [2024-10-31 22:15:09,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50132bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:09, skipping insertion in model container [2024-10-31 22:15:09,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:09" (3/3) ... [2024-10-31 22:15:09,735 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-1.i [2024-10-31 22:15:09,761 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:15:09,764 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-10-31 22:15:09,810 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:09,816 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@749afecc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:09,817 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-10-31 22:15:09,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 54 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:15:09,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:15:09,830 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:09,831 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:09,831 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-10-31 22:15:09,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:09,838 INFO L85 PathProgramCache]: Analyzing trace with hash 67903625, now seen corresponding path program 1 times [2024-10-31 22:15:09,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:09,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577359288] [2024-10-31 22:15:09,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:09,854 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 [2024-10-31 22:15:09,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:09,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:09,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:10,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:15:10,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:10,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:10,106 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:10,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:10,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577359288] [2024-10-31 22:15:10,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577359288] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:10,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:10,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:10,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380642461] [2024-10-31 22:15:10,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:10,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:15:10,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:10,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:15:10,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:10,154 INFO L87 Difference]: Start difference. First operand has 58 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 54 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:15:10,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:10,284 INFO L93 Difference]: Finished difference Result 92 states and 108 transitions. [2024-10-31 22:15:10,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:10,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-10-31 22:15:10,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:10,316 INFO L225 Difference]: With dead ends: 92 [2024-10-31 22:15:10,316 INFO L226 Difference]: Without dead ends: 90 [2024-10-31 22:15:10,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:10,327 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 33 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:10,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 300 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:10,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-31 22:15:10,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 60. [2024-10-31 22:15:10,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 55 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:15:10,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2024-10-31 22:15:10,433 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 11 [2024-10-31 22:15:10,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:10,434 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2024-10-31 22:15:10,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:15:10,434 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2024-10-31 22:15:10,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:15:10,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:10,437 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:10,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-31 22:15:10,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:10,640 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-10-31 22:15:10,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:10,641 INFO L85 PathProgramCache]: Analyzing trace with hash 67902731, now seen corresponding path program 1 times [2024-10-31 22:15:10,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:10,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105286404] [2024-10-31 22:15:10,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:10,643 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 [2024-10-31 22:15:10,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:10,647 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:10,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:10,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:15:10,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:10,825 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 [2024-10-31 22:15:10,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:10,894 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:10,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:10,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105286404] [2024-10-31 22:15:10,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105286404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:10,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:10,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:10,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879726348] [2024-10-31 22:15:10,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:10,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:15:10,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:10,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:15:10,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:10,900 INFO L87 Difference]: Start difference. First operand 60 states and 68 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:15:11,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:11,152 INFO L93 Difference]: Finished difference Result 67 states and 80 transitions. [2024-10-31 22:15:11,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:11,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-10-31 22:15:11,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:11,156 INFO L225 Difference]: With dead ends: 67 [2024-10-31 22:15:11,156 INFO L226 Difference]: Without dead ends: 67 [2024-10-31 22:15:11,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:11,160 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 7 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:11,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 164 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:15:11,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-10-31 22:15:11,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2024-10-31 22:15:11,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 41 states have (on average 1.6097560975609757) internal successors, (66), 57 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:15:11,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2024-10-31 22:15:11,171 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 11 [2024-10-31 22:15:11,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:11,172 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2024-10-31 22:15:11,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:15:11,172 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2024-10-31 22:15:11,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:15:11,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:11,174 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:11,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:11,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:11,375 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-10-31 22:15:11,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:11,376 INFO L85 PathProgramCache]: Analyzing trace with hash 67902732, now seen corresponding path program 1 times [2024-10-31 22:15:11,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:11,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753643040] [2024-10-31 22:15:11,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:11,378 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 [2024-10-31 22:15:11,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:11,381 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:11,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:11,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:15:11,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:11,505 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 [2024-10-31 22:15:11,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:11,760 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:11,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:11,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753643040] [2024-10-31 22:15:11,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753643040] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:11,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:11,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:15:11,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132751334] [2024-10-31 22:15:11,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:11,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:15:11,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:11,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:15:11,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:15:11,766 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:15:12,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:12,209 INFO L93 Difference]: Finished difference Result 74 states and 89 transitions. [2024-10-31 22:15:12,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:15:12,210 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-10-31 22:15:12,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:12,211 INFO L225 Difference]: With dead ends: 74 [2024-10-31 22:15:12,212 INFO L226 Difference]: Without dead ends: 74 [2024-10-31 22:15:12,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:15:12,214 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 55 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:12,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 258 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:15:12,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-10-31 22:15:12,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 64. [2024-10-31 22:15:12,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 43 states have (on average 1.5813953488372092) internal successors, (68), 59 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:15:12,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 74 transitions. [2024-10-31 22:15:12,223 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 74 transitions. Word has length 11 [2024-10-31 22:15:12,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:12,223 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 74 transitions. [2024-10-31 22:15:12,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:15:12,224 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 74 transitions. [2024-10-31 22:15:12,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:15:12,225 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:12,225 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:12,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-31 22:15:12,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:12,427 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-10-31 22:15:12,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:12,428 INFO L85 PathProgramCache]: Analyzing trace with hash 955407306, now seen corresponding path program 1 times [2024-10-31 22:15:12,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:12,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154267699] [2024-10-31 22:15:12,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:12,429 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 [2024-10-31 22:15:12,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:12,433 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:12,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:12,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:15:12,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:12,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:12,548 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:12,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:12,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154267699] [2024-10-31 22:15:12,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154267699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:12,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:12,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:15:12,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188807680] [2024-10-31 22:15:12,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:12,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:12,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:12,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:12,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:12,553 INFO L87 Difference]: Start difference. First operand 64 states and 74 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:15:12,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:12,739 INFO L93 Difference]: Finished difference Result 104 states and 120 transitions. [2024-10-31 22:15:12,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:12,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-10-31 22:15:12,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:12,742 INFO L225 Difference]: With dead ends: 104 [2024-10-31 22:15:12,745 INFO L226 Difference]: Without dead ends: 101 [2024-10-31 22:15:12,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:12,747 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 42 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:12,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 180 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:15:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-10-31 22:15:12,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 80. [2024-10-31 22:15:12,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.5344827586206897) internal successors, (89), 74 states have internal predecessors, (89), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 22:15:12,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 98 transitions. [2024-10-31 22:15:12,767 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 98 transitions. Word has length 11 [2024-10-31 22:15:12,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:12,767 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 98 transitions. [2024-10-31 22:15:12,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:15:12,769 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 98 transitions. [2024-10-31 22:15:12,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:15:12,770 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:12,770 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:12,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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)] Ended with exit code 0 [2024-10-31 22:15:12,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:12,973 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-10-31 22:15:12,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:12,974 INFO L85 PathProgramCache]: Analyzing trace with hash 955406412, now seen corresponding path program 1 times [2024-10-31 22:15:12,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:12,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038860626] [2024-10-31 22:15:12,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:12,975 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 [2024-10-31 22:15:12,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:12,979 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:12,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:13,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:15:13,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:13,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:13,154 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:13,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:13,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038860626] [2024-10-31 22:15:13,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038860626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:13,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:13,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:13,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88775387] [2024-10-31 22:15:13,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:13,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:15:13,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:13,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:15:13,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:13,157 INFO L87 Difference]: Start difference. First operand 80 states and 98 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:15:13,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:13,206 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2024-10-31 22:15:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:13,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-10-31 22:15:13,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:13,208 INFO L225 Difference]: With dead ends: 61 [2024-10-31 22:15:13,208 INFO L226 Difference]: Without dead ends: 59 [2024-10-31 22:15:13,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:13,210 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:13,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:13,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-10-31 22:15:13,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-10-31 22:15:13,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 39 states have (on average 1.5384615384615385) internal successors, (60), 55 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:15:13,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2024-10-31 22:15:13,220 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 11 [2024-10-31 22:15:13,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:13,220 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2024-10-31 22:15:13,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:15:13,223 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2024-10-31 22:15:13,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-31 22:15:13,224 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:13,224 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:13,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:13,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:13,425 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-10-31 22:15:13,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:13,426 INFO L85 PathProgramCache]: Analyzing trace with hash -39339339, now seen corresponding path program 1 times [2024-10-31 22:15:13,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:13,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1765762882] [2024-10-31 22:15:13,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:13,426 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 [2024-10-31 22:15:13,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:13,428 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:13,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:13,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:15:13,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:13,529 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 [2024-10-31 22:15:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:13,766 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:14,741 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:14,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:14,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1765762882] [2024-10-31 22:15:14,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1765762882] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:14,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:15:14,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-10-31 22:15:14,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729203082] [2024-10-31 22:15:14,743 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:14,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-31 22:15:14,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:14,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-31 22:15:14,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:15:14,745 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 16 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 14 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:15:16,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:16,397 INFO L93 Difference]: Finished difference Result 74 states and 86 transitions. [2024-10-31 22:15:16,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 22:15:16,399 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 14 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-10-31 22:15:16,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:16,400 INFO L225 Difference]: With dead ends: 74 [2024-10-31 22:15:16,400 INFO L226 Difference]: Without dead ends: 74 [2024-10-31 22:15:16,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2024-10-31 22:15:16,402 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 75 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:16,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 446 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-31 22:15:16,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-10-31 22:15:16,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 68. [2024-10-31 22:15:16,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 64 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:15:16,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2024-10-31 22:15:16,410 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 14 [2024-10-31 22:15:16,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:16,411 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2024-10-31 22:15:16,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 14 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:15:16,411 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2024-10-31 22:15:16,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-31 22:15:16,412 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:16,412 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:16,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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)] Ended with exit code 0 [2024-10-31 22:15:16,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:16,616 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-10-31 22:15:16,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:16,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1216843566, now seen corresponding path program 1 times [2024-10-31 22:15:16,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:16,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678962752] [2024-10-31 22:15:16,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:16,617 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 [2024-10-31 22:15:16,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:16,619 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:16,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:16,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:15:16,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:16,845 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:16,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:16,979 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:16,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:16,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678962752] [2024-10-31 22:15:16,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1678962752] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:16,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:15:16,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-10-31 22:15:16,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690117482] [2024-10-31 22:15:16,981 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:16,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:15:16,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:16,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:15:16,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:15:16,983 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:15:17,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:17,273 INFO L93 Difference]: Finished difference Result 73 states and 80 transitions. [2024-10-31 22:15:17,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:15:17,274 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2024-10-31 22:15:17,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:17,275 INFO L225 Difference]: With dead ends: 73 [2024-10-31 22:15:17,275 INFO L226 Difference]: Without dead ends: 73 [2024-10-31 22:15:17,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:15:17,277 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 50 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:17,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 341 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:15:17,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-10-31 22:15:17,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-10-31 22:15:17,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 69 states have internal predecessors, (75), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:15:17,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2024-10-31 22:15:17,284 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 22 [2024-10-31 22:15:17,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:17,285 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2024-10-31 22:15:17,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:15:17,286 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2024-10-31 22:15:17,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-31 22:15:17,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:17,287 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:17,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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)] Ended with exit code 0 [2024-10-31 22:15:17,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:17,488 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-10-31 22:15:17,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:17,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1294433228, now seen corresponding path program 2 times [2024-10-31 22:15:17,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:17,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800493745] [2024-10-31 22:15:17,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:15:17,491 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 [2024-10-31 22:15:17,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:17,496 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:17,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:17,606 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:15:17,607 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:15:17,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-31 22:15:17,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:17,642 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 [2024-10-31 22:15:18,240 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:18,240 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:20,423 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:20,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:20,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800493745] [2024-10-31 22:15:20,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800493745] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:20,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:15:20,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-10-31 22:15:20,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302223263] [2024-10-31 22:15:20,425 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:20,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-31 22:15:20,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:20,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-31 22:15:20,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2024-10-31 22:15:20,427 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:15:23,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:23,798 INFO L93 Difference]: Finished difference Result 92 states and 106 transitions. [2024-10-31 22:15:23,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-31 22:15:23,800 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2024-10-31 22:15:23,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:23,801 INFO L225 Difference]: With dead ends: 92 [2024-10-31 22:15:23,802 INFO L226 Difference]: Without dead ends: 92 [2024-10-31 22:15:23,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=282, Invalid=908, Unknown=0, NotChecked=0, Total=1190 [2024-10-31 22:15:23,803 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 102 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:23,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-31 22:15:23,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-31 22:15:23,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 86. [2024-10-31 22:15:23,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 66 states have (on average 1.378787878787879) internal successors, (91), 82 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:15:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 96 transitions. [2024-10-31 22:15:23,811 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 96 transitions. Word has length 23 [2024-10-31 22:15:23,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:23,812 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 96 transitions. [2024-10-31 22:15:23,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-31 22:15:23,812 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2024-10-31 22:15:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-31 22:15:23,813 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:23,813 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:23,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:24,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:24,016 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-10-31 22:15:24,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:24,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1064458770, now seen corresponding path program 2 times [2024-10-31 22:15:24,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:24,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673037322] [2024-10-31 22:15:24,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:15:24,018 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 [2024-10-31 22:15:24,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:24,019 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:24,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:24,105 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:15:24,106 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:15:24,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:15:24,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:24,193 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-31 22:15:24,193 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:24,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:24,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673037322] [2024-10-31 22:15:24,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673037322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:24,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:24,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:24,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011089185] [2024-10-31 22:15:24,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:24,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:24,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:24,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:24,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:24,197 INFO L87 Difference]: Start difference. First operand 86 states and 96 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:15:24,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:24,258 INFO L93 Difference]: Finished difference Result 94 states and 108 transitions. [2024-10-31 22:15:24,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:24,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2024-10-31 22:15:24,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:24,260 INFO L225 Difference]: With dead ends: 94 [2024-10-31 22:15:24,260 INFO L226 Difference]: Without dead ends: 94 [2024-10-31 22:15:24,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:24,261 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 44 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:24,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 124 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:24,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-31 22:15:24,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 87. [2024-10-31 22:15:24,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.373134328358209) internal successors, (92), 83 states have internal predecessors, (92), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:15:24,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2024-10-31 22:15:24,268 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 34 [2024-10-31 22:15:24,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:24,269 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2024-10-31 22:15:24,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:15:24,269 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2024-10-31 22:15:24,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-31 22:15:24,271 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:24,271 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:24,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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)] Ended with exit code 0 [2024-10-31 22:15:24,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:24,473 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-10-31 22:15:24,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:24,474 INFO L85 PathProgramCache]: Analyzing trace with hash 391656853, now seen corresponding path program 1 times [2024-10-31 22:15:24,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:24,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541104882] [2024-10-31 22:15:24,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:24,475 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 [2024-10-31 22:15:24,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:24,478 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:24,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,618 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:15:24,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:24,839 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 4 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:24,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:25,184 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:15:25,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:15:25,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541104882] [2024-10-31 22:15:25,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541104882] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:25,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:15:25,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-10-31 22:15:25,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889689357] [2024-10-31 22:15:25,186 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:25,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-31 22:15:25,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:15:25,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:15:25,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:15:25,188 INFO L87 Difference]: Start difference. First operand 87 states and 97 transitions. Second operand has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-31 22:15:25,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:25,692 INFO L93 Difference]: Finished difference Result 87 states and 93 transitions. [2024-10-31 22:15:25,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 22:15:25,693 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-10-31 22:15:25,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:25,694 INFO L225 Difference]: With dead ends: 87 [2024-10-31 22:15:25,694 INFO L226 Difference]: Without dead ends: 87 [2024-10-31 22:15:25,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2024-10-31 22:15:25,696 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 53 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:25,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 537 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:15:25,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-10-31 22:15:25,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-10-31 22:15:25,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 83 states have internal predecessors, (88), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:15:25,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2024-10-31 22:15:25,703 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 38 [2024-10-31 22:15:25,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:25,703 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2024-10-31 22:15:25,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-31 22:15:25,704 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2024-10-31 22:15:25,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-31 22:15:25,705 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:25,705 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:25,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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)] Ended with exit code 0 [2024-10-31 22:15:25,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:25,906 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2024-10-31 22:15:25,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:25,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1227509228, now seen corresponding path program 3 times [2024-10-31 22:15:25,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:15:25,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [622906692] [2024-10-31 22:15:25,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:15:25,908 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 [2024-10-31 22:15:25,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:15:25,913 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:15:25,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18851b34-aa8d-44ee-a448-a9f742be6c2a/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:15:26,163 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-31 22:15:26,163 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:15:26,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-31 22:15:26,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:26,208 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 [2024-10-31 22:15:27,316 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:27,316 INFO L311 TraceCheckSpWp]: Computing backward predicates...