./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --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 e095bb5ea0d924a9f9ab04ab393eec77de9b1aa4e50357711d33ebab16e651dd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:13:57,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:13:57,994 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:13:57,997 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:13:57,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:13:58,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:13:58,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:13:58,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:13:58,030 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:13:58,033 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:13:58,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:13:58,034 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:13:58,034 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:13:58,034 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:13:58,034 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:13:58,035 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:13:58,035 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:13:58,035 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:13:58,035 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:13:58,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:13:58,036 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:13:58,039 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:13:58,039 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:13:58,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:13:58,040 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:13:58,040 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:13:58,040 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:13:58,040 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:13:58,040 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:13:58,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:13:58,041 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:13:58,041 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:13:58,041 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:13:58,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:13:58,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:13:58,041 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:13:58,041 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:13:58,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:13:58,042 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:13:58,042 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:13:58,042 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:13:58,042 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:13:58,042 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:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e095bb5ea0d924a9f9ab04ab393eec77de9b1aa4e50357711d33ebab16e651dd [2024-10-11 19:13:58,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:13:58,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:13:58,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:13:58,243 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:13:58,243 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:13:58,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i [2024-10-11 19:13:59,451 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:13:59,686 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:13:59,687 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i [2024-10-11 19:13:59,704 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4cb3bec28/c180761cf09c405f8fe4184e51264ded/FLAGa5d17dfc9 [2024-10-11 19:13:59,719 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4cb3bec28/c180761cf09c405f8fe4184e51264ded [2024-10-11 19:13:59,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:13:59,722 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:13:59,723 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:13:59,723 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:13:59,727 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:13:59,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:13:59" (1/1) ... [2024-10-11 19:13:59,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7d17fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:13:59, skipping insertion in model container [2024-10-11 19:13:59,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:13:59" (1/1) ... [2024-10-11 19:13:59,777 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:14:00,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:14:00,198 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) [2024-10-11 19:14:00,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7de18880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:00, skipping insertion in model container [2024-10-11 19:14:00,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:14:00,206 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-11 19:14:00,207 INFO L158 Benchmark]: Toolchain (without parser) took 484.33ms. Allocated memory was 142.6MB in the beginning and 211.8MB in the end (delta: 69.2MB). Free memory was 69.2MB in the beginning and 179.6MB in the end (delta: -110.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-10-11 19:14:00,208 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:14:00,209 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.61ms. Allocated memory was 142.6MB in the beginning and 211.8MB in the end (delta: 69.2MB). Free memory was 69.2MB in the beginning and 179.6MB in the end (delta: -110.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-10-11 19:14:00,210 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 482.61ms. Allocated memory was 142.6MB in the beginning and 211.8MB in the end (delta: 69.2MB). Free memory was 69.2MB in the beginning and 179.6MB in the end (delta: -110.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 752]: 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: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --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 e095bb5ea0d924a9f9ab04ab393eec77de9b1aa4e50357711d33ebab16e651dd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:14:01,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:14:01,837 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-11 19:14:01,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:14:01,844 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:14:01,872 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:14:01,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:14:01,873 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:14:01,873 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:14:01,874 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:14:01,874 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:14:01,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:14:01,875 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:14:01,876 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:14:01,877 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:14:01,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:14:01,877 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:14:01,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:14:01,878 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:14:01,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:14:01,881 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:14:01,881 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:14:01,881 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:14:01,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:14:01,882 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:14:01,882 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 19:14:01,882 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:14:01,882 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 19:14:01,882 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:14:01,882 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:14:01,882 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:14:01,883 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:14:01,883 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:14:01,883 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:14:01,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:14:01,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:14:01,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:14:01,884 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:14:01,884 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 19:14:01,884 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 19:14:01,884 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:14:01,886 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:14:01,886 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:14:01,886 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:14:01,886 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 19:14:01,886 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:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e095bb5ea0d924a9f9ab04ab393eec77de9b1aa4e50357711d33ebab16e651dd [2024-10-11 19:14:02,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:14:02,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:14:02,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:14:02,157 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:14:02,157 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:14:02,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i [2024-10-11 19:14:03,363 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:14:03,599 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:14:03,600 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i [2024-10-11 19:14:03,618 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2ce316d9e/a711cd81c6cc4b13a3d2479790a24ec8/FLAGcf1bb3563 [2024-10-11 19:14:03,914 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2ce316d9e/a711cd81c6cc4b13a3d2479790a24ec8 [2024-10-11 19:14:03,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:14:03,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:14:03,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:14:03,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:14:03,924 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:14:03,925 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:14:03" (1/1) ... [2024-10-11 19:14:03,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77bc94ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:03, skipping insertion in model container [2024-10-11 19:14:03,926 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:14:03" (1/1) ... [2024-10-11 19:14:03,971 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:14:04,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:14:04,432 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-11 19:14:04,450 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:14:04,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:14:04,523 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:14:04,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:14:04,638 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:14:04,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04 WrapperNode [2024-10-11 19:14:04,639 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:14:04,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:14:04,640 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:14:04,640 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:14:04,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,682 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,739 INFO L138 Inliner]: procedures = 179, calls = 387, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1351 [2024-10-11 19:14:04,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:14:04,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:14:04,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:14:04,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:14:04,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,762 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,854 INFO L175 MemorySlicer]: Split 357 memory accesses to 2 slices as follows [2, 355]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 90 writes are split as follows [0, 90]. [2024-10-11 19:14:04,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,918 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,936 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,946 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:14:04,948 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:14:04,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:14:04,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:14:04,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (1/1) ... [2024-10-11 19:14:04,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:14:04,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:14:04,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:14:04,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:14:05,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-11 19:14:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-11 19:14:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 19:14:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 19:14:05,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 19:14:05,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 19:14:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-11 19:14:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-11 19:14:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-11 19:14:05,023 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-11 19:14:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 19:14:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:14:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 19:14:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 19:14:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 19:14:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 19:14:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 19:14:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 19:14:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 19:14:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 19:14:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 19:14:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:14:05,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:14:05,229 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:14:05,231 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:14:05,233 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-11 19:14:05,265 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-11 19:14:08,393 INFO L? ?]: Removed 1547 outVars from TransFormulas that were not future-live. [2024-10-11 19:14:08,394 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:14:08,573 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:14:08,573 INFO L314 CfgBuilder]: Removed 69 assume(true) statements. [2024-10-11 19:14:08,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:14:08 BoogieIcfgContainer [2024-10-11 19:14:08,574 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:14:08,578 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:14:08,578 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:14:08,581 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:14:08,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:14:03" (1/3) ... [2024-10-11 19:14:08,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72056b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:14:08, skipping insertion in model container [2024-10-11 19:14:08,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:14:04" (2/3) ... [2024-10-11 19:14:08,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72056b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:14:08, skipping insertion in model container [2024-10-11 19:14:08,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:14:08" (3/3) ... [2024-10-11 19:14:08,583 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test4-2.i [2024-10-11 19:14:08,595 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:14:08,595 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 733 error locations. [2024-10-11 19:14:08,646 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:14:08,653 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;@367bdea1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:14:08,653 INFO L334 AbstractCegarLoop]: Starting to check reachability of 733 error locations. [2024-10-11 19:14:08,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 1312 states, 566 states have (on average 2.545936395759717) internal successors, (1441), 1303 states have internal predecessors, (1441), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 19:14:08,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-11 19:14:08,664 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:08,665 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-11 19:14:08,665 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:08,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:08,670 INFO L85 PathProgramCache]: Analyzing trace with hash 69709116, now seen corresponding path program 1 times [2024-10-11 19:14:08,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:08,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362965728] [2024-10-11 19:14:08,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:08,680 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 [2024-10-11 19:14:08,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:08,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:08,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:08,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:14:08,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:08,836 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 [2024-10-11 19:14:08,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:08,847 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:08,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:08,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362965728] [2024-10-11 19:14:08,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362965728] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:08,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:08,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:14:08,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427446528] [2024-10-11 19:14:08,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:08,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:14:08,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:08,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:14:08,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:08,908 INFO L87 Difference]: Start difference. First operand has 1312 states, 566 states have (on average 2.545936395759717) internal successors, (1441), 1303 states have internal predecessors, (1441), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:10,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:10,533 INFO L93 Difference]: Finished difference Result 1201 states and 1285 transitions. [2024-10-11 19:14:10,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:14:10,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-11 19:14:10,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:10,549 INFO L225 Difference]: With dead ends: 1201 [2024-10-11 19:14:10,549 INFO L226 Difference]: Without dead ends: 1200 [2024-10-11 19:14:10,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:10,556 INFO L432 NwaCegarLoop]: 652 mSDtfsCounter, 926 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:10,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 747 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 19:14:10,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2024-10-11 19:14:10,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1198. [2024-10-11 19:14:10,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 557 states have (on average 2.2423698384201076) internal successors, (1249), 1189 states have internal predecessors, (1249), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 19:14:10,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1281 transitions. [2024-10-11 19:14:10,622 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1281 transitions. Word has length 4 [2024-10-11 19:14:10,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:10,622 INFO L471 AbstractCegarLoop]: Abstraction has 1198 states and 1281 transitions. [2024-10-11 19:14:10,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:10,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1281 transitions. [2024-10-11 19:14:10,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-11 19:14:10,623 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:10,623 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-11 19:14:10,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:10,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:10,826 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:10,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:10,826 INFO L85 PathProgramCache]: Analyzing trace with hash 69709117, now seen corresponding path program 1 times [2024-10-11 19:14:10,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:10,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1531342022] [2024-10-11 19:14:10,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:10,827 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 [2024-10-11 19:14:10,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:10,830 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:10,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:10,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:14:10,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:10,965 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 [2024-10-11 19:14:10,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:10,980 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:10,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:10,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1531342022] [2024-10-11 19:14:10,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1531342022] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:10,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:10,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:14:10,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659467965] [2024-10-11 19:14:10,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:10,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:14:10,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:10,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:14:10,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:10,983 INFO L87 Difference]: Start difference. First operand 1198 states and 1281 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:13,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:13,062 INFO L93 Difference]: Finished difference Result 1478 states and 1581 transitions. [2024-10-11 19:14:13,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:14:13,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-11 19:14:13,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:13,067 INFO L225 Difference]: With dead ends: 1478 [2024-10-11 19:14:13,068 INFO L226 Difference]: Without dead ends: 1478 [2024-10-11 19:14:13,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:13,069 INFO L432 NwaCegarLoop]: 958 mSDtfsCounter, 464 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:13,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 1429 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-11 19:14:13,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2024-10-11 19:14:13,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1327. [2024-10-11 19:14:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 696 states have (on average 2.199712643678161) internal successors, (1531), 1318 states have internal predecessors, (1531), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 19:14:13,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1563 transitions. [2024-10-11 19:14:13,090 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1563 transitions. Word has length 4 [2024-10-11 19:14:13,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:13,090 INFO L471 AbstractCegarLoop]: Abstraction has 1327 states and 1563 transitions. [2024-10-11 19:14:13,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:13,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1563 transitions. [2024-10-11 19:14:13,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 19:14:13,091 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:13,091 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 19:14:13,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:13,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:13,291 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:13,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:13,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2132325201, now seen corresponding path program 1 times [2024-10-11 19:14:13,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:13,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905474195] [2024-10-11 19:14:13,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:13,292 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 [2024-10-11 19:14:13,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:13,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:13,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:13,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:14:13,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:13,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:13,395 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:13,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:13,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905474195] [2024-10-11 19:14:13,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905474195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:13,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:13,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:14:13,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524148579] [2024-10-11 19:14:13,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:13,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:14:13,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:13,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:14:13,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:13,397 INFO L87 Difference]: Start difference. First operand 1327 states and 1563 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:14,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:14,284 INFO L93 Difference]: Finished difference Result 2427 states and 2868 transitions. [2024-10-11 19:14:14,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:14:14,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 19:14:14,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:14,293 INFO L225 Difference]: With dead ends: 2427 [2024-10-11 19:14:14,293 INFO L226 Difference]: Without dead ends: 2427 [2024-10-11 19:14:14,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:14,295 INFO L432 NwaCegarLoop]: 1308 mSDtfsCounter, 1000 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 2436 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:14,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 2436 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 19:14:14,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2427 states. [2024-10-11 19:14:14,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2427 to 1328. [2024-10-11 19:14:14,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 697 states have (on average 2.1979913916786225) internal successors, (1532), 1319 states have internal predecessors, (1532), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 19:14:14,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 1564 transitions. [2024-10-11 19:14:14,321 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 1564 transitions. Word has length 5 [2024-10-11 19:14:14,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:14,321 INFO L471 AbstractCegarLoop]: Abstraction has 1328 states and 1564 transitions. [2024-10-11 19:14:14,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:14,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 1564 transitions. [2024-10-11 19:14:14,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-11 19:14:14,322 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:14,322 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:14,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:14,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:14,523 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:14,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:14,523 INFO L85 PathProgramCache]: Analyzing trace with hash 358375302, now seen corresponding path program 1 times [2024-10-11 19:14:14,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:14,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512497078] [2024-10-11 19:14:14,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:14,524 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 [2024-10-11 19:14:14,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:14,527 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:14,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:14,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:14:14,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:14,643 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:14,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:14,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512497078] [2024-10-11 19:14:14,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512497078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:14,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:14,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:14:14,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52425662] [2024-10-11 19:14:14,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:14,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:14:14,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:14,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:14:14,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:14,645 INFO L87 Difference]: Start difference. First operand 1328 states and 1564 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:15,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:15,227 INFO L93 Difference]: Finished difference Result 1289 states and 1524 transitions. [2024-10-11 19:14:15,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:14:15,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-11 19:14:15,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:15,232 INFO L225 Difference]: With dead ends: 1289 [2024-10-11 19:14:15,232 INFO L226 Difference]: Without dead ends: 1289 [2024-10-11 19:14:15,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:15,233 INFO L432 NwaCegarLoop]: 1084 mSDtfsCounter, 61 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:15,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2126 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 19:14:15,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2024-10-11 19:14:15,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1289. [2024-10-11 19:14:15,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 682 states have (on average 2.187683284457478) internal successors, (1492), 1280 states have internal predecessors, (1492), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 19:14:15,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1524 transitions. [2024-10-11 19:14:15,249 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1524 transitions. Word has length 10 [2024-10-11 19:14:15,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:15,249 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1524 transitions. [2024-10-11 19:14:15,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:15,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1524 transitions. [2024-10-11 19:14:15,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 19:14:15,250 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:15,250 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:15,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:15,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:15,453 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:15,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:15,453 INFO L85 PathProgramCache]: Analyzing trace with hash 801277664, now seen corresponding path program 1 times [2024-10-11 19:14:15,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:15,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660802466] [2024-10-11 19:14:15,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:15,454 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 [2024-10-11 19:14:15,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:15,456 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:15,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:15,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:14:15,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:15,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:15,599 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:15,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:15,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660802466] [2024-10-11 19:14:15,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660802466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:15,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:15,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:14:15,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37441711] [2024-10-11 19:14:15,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:15,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:15,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:15,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:15,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:15,603 INFO L87 Difference]: Start difference. First operand 1289 states and 1524 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:16,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:16,407 INFO L93 Difference]: Finished difference Result 1274 states and 1502 transitions. [2024-10-11 19:14:16,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:14:16,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-11 19:14:16,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:16,411 INFO L225 Difference]: With dead ends: 1274 [2024-10-11 19:14:16,412 INFO L226 Difference]: Without dead ends: 1274 [2024-10-11 19:14:16,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:16,412 INFO L432 NwaCegarLoop]: 1053 mSDtfsCounter, 45 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3141 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:16,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3141 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 19:14:16,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2024-10-11 19:14:16,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1274. [2024-10-11 19:14:16,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 681 states have (on average 2.158590308370044) internal successors, (1470), 1265 states have internal predecessors, (1470), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 19:14:16,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1502 transitions. [2024-10-11 19:14:16,428 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1502 transitions. Word has length 12 [2024-10-11 19:14:16,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:16,429 INFO L471 AbstractCegarLoop]: Abstraction has 1274 states and 1502 transitions. [2024-10-11 19:14:16,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:16,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1502 transitions. [2024-10-11 19:14:16,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 19:14:16,430 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:16,430 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:16,434 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-10-11 19:14:16,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:16,631 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:16,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:16,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1911588786, now seen corresponding path program 1 times [2024-10-11 19:14:16,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:16,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146918873] [2024-10-11 19:14:16,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:16,632 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 [2024-10-11 19:14:16,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:16,633 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:16,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:16,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:14:16,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:16,750 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 [2024-10-11 19:14:16,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:16,802 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:16,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:16,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146918873] [2024-10-11 19:14:16,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146918873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:16,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:16,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:14:16,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284464850] [2024-10-11 19:14:16,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:16,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:16,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:16,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:16,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:16,803 INFO L87 Difference]: Start difference. First operand 1274 states and 1502 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:18,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:18,439 INFO L93 Difference]: Finished difference Result 1274 states and 1502 transitions. [2024-10-11 19:14:18,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:14:18,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-10-11 19:14:18,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:18,443 INFO L225 Difference]: With dead ends: 1274 [2024-10-11 19:14:18,443 INFO L226 Difference]: Without dead ends: 1274 [2024-10-11 19:14:18,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:18,444 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 870 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:18,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 1174 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 19:14:18,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2024-10-11 19:14:18,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1270. [2024-10-11 19:14:18,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 681 states have (on average 2.1527165932452275) internal successors, (1466), 1261 states have internal predecessors, (1466), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 19:14:18,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1498 transitions. [2024-10-11 19:14:18,457 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1498 transitions. Word has length 26 [2024-10-11 19:14:18,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:18,457 INFO L471 AbstractCegarLoop]: Abstraction has 1270 states and 1498 transitions. [2024-10-11 19:14:18,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:18,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1498 transitions. [2024-10-11 19:14:18,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 19:14:18,458 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:18,458 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:18,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:18,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:18,662 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:18,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:18,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1911588785, now seen corresponding path program 1 times [2024-10-11 19:14:18,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:18,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346310793] [2024-10-11 19:14:18,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:18,662 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 [2024-10-11 19:14:18,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:18,663 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:18,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:18,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:14:18,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:18,802 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 [2024-10-11 19:14:18,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:18,928 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:18,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:18,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346310793] [2024-10-11 19:14:18,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346310793] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:18,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:18,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:14:18,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209982854] [2024-10-11 19:14:18,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:18,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:18,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:18,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:18,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:18,929 INFO L87 Difference]: Start difference. First operand 1270 states and 1498 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:21,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:21,097 INFO L93 Difference]: Finished difference Result 1421 states and 1516 transitions. [2024-10-11 19:14:21,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:14:21,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-10-11 19:14:21,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:21,101 INFO L225 Difference]: With dead ends: 1421 [2024-10-11 19:14:21,101 INFO L226 Difference]: Without dead ends: 1421 [2024-10-11 19:14:21,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:21,102 INFO L432 NwaCegarLoop]: 922 mSDtfsCounter, 404 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 1570 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:21,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 1901 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1570 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-11 19:14:21,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-10-11 19:14:21,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1266. [2024-10-11 19:14:21,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 681 states have (on average 2.146842878120411) internal successors, (1462), 1257 states have internal predecessors, (1462), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 19:14:21,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1494 transitions. [2024-10-11 19:14:21,116 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1494 transitions. Word has length 26 [2024-10-11 19:14:21,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:21,116 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1494 transitions. [2024-10-11 19:14:21,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:21,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1494 transitions. [2024-10-11 19:14:21,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-11 19:14:21,117 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:21,117 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:21,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-10-11 19:14:21,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:21,318 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:21,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:21,318 INFO L85 PathProgramCache]: Analyzing trace with hash 470489544, now seen corresponding path program 1 times [2024-10-11 19:14:21,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:21,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798946132] [2024-10-11 19:14:21,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:21,319 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 [2024-10-11 19:14:21,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:21,321 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:21,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:21,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:14:21,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:21,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:21,511 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:21,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:21,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798946132] [2024-10-11 19:14:21,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798946132] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:21,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:21,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:14:21,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548629659] [2024-10-11 19:14:21,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:21,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:21,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:21,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:21,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:21,513 INFO L87 Difference]: Start difference. First operand 1266 states and 1494 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:22,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:22,219 INFO L93 Difference]: Finished difference Result 1260 states and 1484 transitions. [2024-10-11 19:14:22,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:14:22,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-10-11 19:14:22,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:22,223 INFO L225 Difference]: With dead ends: 1260 [2024-10-11 19:14:22,223 INFO L226 Difference]: Without dead ends: 1260 [2024-10-11 19:14:22,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:22,224 INFO L432 NwaCegarLoop]: 1047 mSDtfsCounter, 15 mSDsluCounter, 2077 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:22,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3124 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 19:14:22,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2024-10-11 19:14:22,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1260. [2024-10-11 19:14:22,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 675 states have (on average 2.151111111111111) internal successors, (1452), 1251 states have internal predecessors, (1452), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 19:14:22,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1484 transitions. [2024-10-11 19:14:22,240 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1484 transitions. Word has length 42 [2024-10-11 19:14:22,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:22,240 INFO L471 AbstractCegarLoop]: Abstraction has 1260 states and 1484 transitions. [2024-10-11 19:14:22,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:22,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1484 transitions. [2024-10-11 19:14:22,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-11 19:14:22,243 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:22,243 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:22,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:22,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:22,444 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:22,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:22,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1674619112, now seen corresponding path program 1 times [2024-10-11 19:14:22,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:22,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938001498] [2024-10-11 19:14:22,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:22,445 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 [2024-10-11 19:14:22,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:22,446 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:22,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:22,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:14:22,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:22,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:22,762 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:22,763 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:22,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938001498] [2024-10-11 19:14:22,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938001498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:22,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:22,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:14:22,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097239913] [2024-10-11 19:14:22,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:22,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:14:22,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:22,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:14:22,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:22,765 INFO L87 Difference]: Start difference. First operand 1260 states and 1484 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:23,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:23,427 INFO L93 Difference]: Finished difference Result 1457 states and 1710 transitions. [2024-10-11 19:14:23,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:14:23,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-10-11 19:14:23,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:23,431 INFO L225 Difference]: With dead ends: 1457 [2024-10-11 19:14:23,431 INFO L226 Difference]: Without dead ends: 1457 [2024-10-11 19:14:23,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:14:23,432 INFO L432 NwaCegarLoop]: 1114 mSDtfsCounter, 161 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2114 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:23,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 2114 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 19:14:23,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-10-11 19:14:23,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1303. [2024-10-11 19:14:23,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 718 states have (on average 2.082172701949861) internal successors, (1495), 1294 states have internal predecessors, (1495), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 19:14:23,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1527 transitions. [2024-10-11 19:14:23,447 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1527 transitions. Word has length 46 [2024-10-11 19:14:23,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:23,447 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1527 transitions. [2024-10-11 19:14:23,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:23,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1527 transitions. [2024-10-11 19:14:23,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-11 19:14:23,450 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:23,451 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:23,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:23,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:23,651 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:23,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:23,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1869617577, now seen corresponding path program 1 times [2024-10-11 19:14:23,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:23,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136273834] [2024-10-11 19:14:23,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:23,652 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 [2024-10-11 19:14:23,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:23,655 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:23,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:23,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 19:14:23,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:23,883 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 [2024-10-11 19:14:23,887 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 [2024-10-11 19:14:24,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:14:24,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-11 19:14:24,198 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 19:14:24,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-11 19:14:24,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:24,211 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:24,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:24,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136273834] [2024-10-11 19:14:24,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136273834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:24,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:24,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:14:24,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534829112] [2024-10-11 19:14:24,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:24,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:24,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:24,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:24,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:24,212 INFO L87 Difference]: Start difference. First operand 1303 states and 1527 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:25,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:25,768 INFO L93 Difference]: Finished difference Result 1219 states and 1443 transitions. [2024-10-11 19:14:25,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:14:25,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-10-11 19:14:25,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:25,771 INFO L225 Difference]: With dead ends: 1219 [2024-10-11 19:14:25,771 INFO L226 Difference]: Without dead ends: 1219 [2024-10-11 19:14:25,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:25,772 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 782 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:25,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 644 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 19:14:25,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2024-10-11 19:14:25,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1080. [2024-10-11 19:14:25,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 579 states have (on average 1.932642487046632) internal successors, (1119), 1071 states have internal predecessors, (1119), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 19:14:25,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1151 transitions. [2024-10-11 19:14:25,783 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1151 transitions. Word has length 49 [2024-10-11 19:14:25,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:25,783 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1151 transitions. [2024-10-11 19:14:25,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:25,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1151 transitions. [2024-10-11 19:14:25,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-11 19:14:25,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:25,784 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:25,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:25,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:25,985 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:25,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:25,986 INFO L85 PathProgramCache]: Analyzing trace with hash -804994658, now seen corresponding path program 1 times [2024-10-11 19:14:25,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:25,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84123779] [2024-10-11 19:14:25,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:25,987 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 [2024-10-11 19:14:25,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:25,989 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:25,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:26,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:14:26,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:26,173 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 [2024-10-11 19:14:26,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 19:14:26,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-11 19:14:26,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:26,206 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:26,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:26,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84123779] [2024-10-11 19:14:26,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84123779] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:26,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:26,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:14:26,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409582251] [2024-10-11 19:14:26,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:26,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:14:26,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:26,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:14:26,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:26,207 INFO L87 Difference]: Start difference. First operand 1080 states and 1151 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:28,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:28,106 INFO L93 Difference]: Finished difference Result 1079 states and 1150 transitions. [2024-10-11 19:14:28,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:14:28,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-10-11 19:14:28,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:28,109 INFO L225 Difference]: With dead ends: 1079 [2024-10-11 19:14:28,109 INFO L226 Difference]: Without dead ends: 1079 [2024-10-11 19:14:28,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:14:28,110 INFO L432 NwaCegarLoop]: 975 mSDtfsCounter, 2 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:28,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2519 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 19:14:28,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-10-11 19:14:28,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1079. [2024-10-11 19:14:28,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 579 states have (on average 1.930915371329879) internal successors, (1118), 1070 states have internal predecessors, (1118), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 19:14:28,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1150 transitions. [2024-10-11 19:14:28,122 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1150 transitions. Word has length 53 [2024-10-11 19:14:28,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:28,122 INFO L471 AbstractCegarLoop]: Abstraction has 1079 states and 1150 transitions. [2024-10-11 19:14:28,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:28,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1150 transitions. [2024-10-11 19:14:28,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-11 19:14:28,124 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:28,124 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:28,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-10-11 19:14:28,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:28,324 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:28,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:28,325 INFO L85 PathProgramCache]: Analyzing trace with hash -804994657, now seen corresponding path program 1 times [2024-10-11 19:14:28,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:28,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088234254] [2024-10-11 19:14:28,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:28,325 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 [2024-10-11 19:14:28,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:28,326 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:28,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-10-11 19:14:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:28,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 19:14:28,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:28,496 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 [2024-10-11 19:14:28,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 19:14:28,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 19:14:28,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-10-11 19:14:28,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:28,547 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:28,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:28,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088234254] [2024-10-11 19:14:28,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088234254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:28,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:28,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:14:28,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985038187] [2024-10-11 19:14:28,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:28,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:14:28,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:28,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:14:28,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:14:28,549 INFO L87 Difference]: Start difference. First operand 1079 states and 1150 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:30,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:30,866 INFO L93 Difference]: Finished difference Result 1078 states and 1149 transitions. [2024-10-11 19:14:30,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:14:30,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-10-11 19:14:30,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:30,869 INFO L225 Difference]: With dead ends: 1078 [2024-10-11 19:14:30,869 INFO L226 Difference]: Without dead ends: 1078 [2024-10-11 19:14:30,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:14:30,870 INFO L432 NwaCegarLoop]: 975 mSDtfsCounter, 1 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:30,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2548 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-11 19:14:30,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2024-10-11 19:14:30,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1078. [2024-10-11 19:14:30,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 578 states have (on average 1.9325259515570934) internal successors, (1117), 1069 states have internal predecessors, (1117), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 19:14:30,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1149 transitions. [2024-10-11 19:14:30,886 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1149 transitions. Word has length 53 [2024-10-11 19:14:30,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:30,887 INFO L471 AbstractCegarLoop]: Abstraction has 1078 states and 1149 transitions. [2024-10-11 19:14:30,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:14:30,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1149 transitions. [2024-10-11 19:14:30,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-11 19:14:30,887 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:30,887 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:30,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-10-11 19:14:31,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:31,088 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:31,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:31,088 INFO L85 PathProgramCache]: Analyzing trace with hash -226575358, now seen corresponding path program 1 times [2024-10-11 19:14:31,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:31,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1571850581] [2024-10-11 19:14:31,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:31,089 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 [2024-10-11 19:14:31,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:31,091 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:31,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-10-11 19:14:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:31,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:14:31,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:31,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:31,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:14:31,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:31,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1571850581] [2024-10-11 19:14:31,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1571850581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:14:31,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:14:31,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:14:31,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142085648] [2024-10-11 19:14:31,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:14:31,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:14:31,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:31,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:14:31,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:31,293 INFO L87 Difference]: Start difference. First operand 1078 states and 1149 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-10-11 19:14:31,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:31,983 INFO L93 Difference]: Finished difference Result 1080 states and 1153 transitions. [2024-10-11 19:14:31,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:14:31,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 59 [2024-10-11 19:14:31,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:31,986 INFO L225 Difference]: With dead ends: 1080 [2024-10-11 19:14:31,987 INFO L226 Difference]: Without dead ends: 1080 [2024-10-11 19:14:31,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:14:31,988 INFO L432 NwaCegarLoop]: 974 mSDtfsCounter, 0 mSDsluCounter, 1942 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:31,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2916 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 19:14:31,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2024-10-11 19:14:31,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1080. [2024-10-11 19:14:31,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 579 states have (on average 1.932642487046632) internal successors, (1119), 1071 states have internal predecessors, (1119), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-10-11 19:14:31,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1153 transitions. [2024-10-11 19:14:31,999 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1153 transitions. Word has length 59 [2024-10-11 19:14:31,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:31,999 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1153 transitions. [2024-10-11 19:14:31,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-10-11 19:14:31,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1153 transitions. [2024-10-11 19:14:31,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-11 19:14:31,999 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:32,000 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:32,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2024-10-11 19:14:32,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:32,200 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:32,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:32,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1204273177, now seen corresponding path program 1 times [2024-10-11 19:14:32,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:32,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422961163] [2024-10-11 19:14:32,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:14:32,202 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 [2024-10-11 19:14:32,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:32,204 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:32,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (15)] Waiting until timeout for monitored process [2024-10-11 19:14:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:14:32,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:14:32,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:32,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:32,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:14:32,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:32,481 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:32,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422961163] [2024-10-11 19:14:32,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422961163] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:14:32,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:14:32,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-11 19:14:32,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32746106] [2024-10-11 19:14:32,482 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:14:32,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 19:14:32,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:32,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 19:14:32,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 19:14:32,483 INFO L87 Difference]: Start difference. First operand 1080 states and 1153 transitions. Second operand has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:14:33,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:33,543 INFO L93 Difference]: Finished difference Result 1089 states and 1168 transitions. [2024-10-11 19:14:33,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:14:33,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 60 [2024-10-11 19:14:33,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:33,547 INFO L225 Difference]: With dead ends: 1089 [2024-10-11 19:14:33,547 INFO L226 Difference]: Without dead ends: 1089 [2024-10-11 19:14:33,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-10-11 19:14:33,547 INFO L432 NwaCegarLoop]: 972 mSDtfsCounter, 4 mSDsluCounter, 3874 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4846 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:33,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4846 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 19:14:33,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2024-10-11 19:14:33,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1088. [2024-10-11 19:14:33,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 586 states have (on average 1.931740614334471) internal successors, (1132), 1078 states have internal predecessors, (1132), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-10-11 19:14:33,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1166 transitions. [2024-10-11 19:14:33,557 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1166 transitions. Word has length 60 [2024-10-11 19:14:33,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:33,558 INFO L471 AbstractCegarLoop]: Abstraction has 1088 states and 1166 transitions. [2024-10-11 19:14:33,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:14:33,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1166 transitions. [2024-10-11 19:14:33,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-11 19:14:33,559 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:33,559 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:33,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (15)] Ended with exit code 0 [2024-10-11 19:14:33,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:33,763 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:33,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:33,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1454574914, now seen corresponding path program 2 times [2024-10-11 19:14:33,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:33,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308066497] [2024-10-11 19:14:33,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 19:14:33,764 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 [2024-10-11 19:14:33,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:33,765 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:33,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (16)] Waiting until timeout for monitored process [2024-10-11 19:14:34,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 19:14:34,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:14:34,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 19:14:34,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:34,113 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:34,113 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:14:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:34,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:34,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308066497] [2024-10-11 19:14:34,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308066497] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:14:34,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:14:34,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-11 19:14:34,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126797088] [2024-10-11 19:14:34,222 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:14:34,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 19:14:34,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:34,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 19:14:34,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-11 19:14:34,223 INFO L87 Difference]: Start difference. First operand 1088 states and 1166 transitions. Second operand has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:14:36,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:36,154 INFO L93 Difference]: Finished difference Result 1100 states and 1186 transitions. [2024-10-11 19:14:36,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 19:14:36,155 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 63 [2024-10-11 19:14:36,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:36,158 INFO L225 Difference]: With dead ends: 1100 [2024-10-11 19:14:36,158 INFO L226 Difference]: Without dead ends: 1098 [2024-10-11 19:14:36,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-11 19:14:36,158 INFO L432 NwaCegarLoop]: 972 mSDtfsCounter, 7 mSDsluCounter, 7754 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8726 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:36,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 8726 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-11 19:14:36,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-10-11 19:14:36,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1097. [2024-10-11 19:14:36,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 595 states have (on average 1.9226890756302522) internal successors, (1144), 1087 states have internal predecessors, (1144), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-10-11 19:14:36,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1178 transitions. [2024-10-11 19:14:36,169 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1178 transitions. Word has length 63 [2024-10-11 19:14:36,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:36,169 INFO L471 AbstractCegarLoop]: Abstraction has 1097 states and 1178 transitions. [2024-10-11 19:14:36,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:14:36,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1178 transitions. [2024-10-11 19:14:36,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 19:14:36,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:36,170 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:36,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (16)] Ended with exit code 0 [2024-10-11 19:14:36,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:36,370 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:36,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:36,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1368824610, now seen corresponding path program 3 times [2024-10-11 19:14:36,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:36,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344787118] [2024-10-11 19:14:36,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 19:14:36,371 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 [2024-10-11 19:14:36,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:36,374 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:36,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (17)] Waiting until timeout for monitored process [2024-10-11 19:14:36,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-11 19:14:36,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:14:36,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:14:36,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:36,900 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:36,901 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:14:37,280 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:37,281 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:37,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344787118] [2024-10-11 19:14:37,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344787118] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:14:37,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:14:37,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-11 19:14:37,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820276375] [2024-10-11 19:14:37,281 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:14:37,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 19:14:37,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:37,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 19:14:37,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-11 19:14:37,282 INFO L87 Difference]: Start difference. First operand 1097 states and 1178 transitions. Second operand has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:14:40,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:40,784 INFO L93 Difference]: Finished difference Result 1118 states and 1214 transitions. [2024-10-11 19:14:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-11 19:14:40,785 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 69 [2024-10-11 19:14:40,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:40,788 INFO L225 Difference]: With dead ends: 1118 [2024-10-11 19:14:40,788 INFO L226 Difference]: Without dead ends: 1115 [2024-10-11 19:14:40,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-11 19:14:40,789 INFO L432 NwaCegarLoop]: 972 mSDtfsCounter, 13 mSDsluCounter, 10666 mSDsCounter, 0 mSdLazyCounter, 2108 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11638 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:40,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11638 Invalid, 2123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2108 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-11 19:14:40,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2024-10-11 19:14:40,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1115. [2024-10-11 19:14:40,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 613 states have (on average 1.9037520391517129) internal successors, (1167), 1105 states have internal predecessors, (1167), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-10-11 19:14:40,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1201 transitions. [2024-10-11 19:14:40,799 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1201 transitions. Word has length 69 [2024-10-11 19:14:40,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:40,799 INFO L471 AbstractCegarLoop]: Abstraction has 1115 states and 1201 transitions. [2024-10-11 19:14:40,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:14:40,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1201 transitions. [2024-10-11 19:14:40,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-11 19:14:40,799 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:40,800 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:40,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (17)] Ended with exit code 0 [2024-10-11 19:14:41,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:41,000 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:41,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:41,001 INFO L85 PathProgramCache]: Analyzing trace with hash 166592226, now seen corresponding path program 4 times [2024-10-11 19:14:41,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:41,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582923358] [2024-10-11 19:14:41,001 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 19:14:41,001 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 [2024-10-11 19:14:41,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:41,002 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:41,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (18)] Waiting until timeout for monitored process [2024-10-11 19:14:41,327 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 19:14:41,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:14:41,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-11 19:14:41,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:41,595 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:41,595 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:14:42,508 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:14:42,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:42,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582923358] [2024-10-11 19:14:42,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1582923358] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:14:42,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:14:42,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-11 19:14:42,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954645990] [2024-10-11 19:14:42,508 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:14:42,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-11 19:14:42,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:14:42,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-11 19:14:42,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-11 19:14:42,510 INFO L87 Difference]: Start difference. First operand 1115 states and 1201 transitions. Second operand has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:14:50,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:14:50,532 INFO L93 Difference]: Finished difference Result 1152 states and 1271 transitions. [2024-10-11 19:14:50,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-11 19:14:50,533 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2024-10-11 19:14:50,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:14:50,536 INFO L225 Difference]: With dead ends: 1152 [2024-10-11 19:14:50,536 INFO L226 Difference]: Without dead ends: 1150 [2024-10-11 19:14:50,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-11 19:14:50,538 INFO L432 NwaCegarLoop]: 972 mSDtfsCounter, 25 mSDsluCounter, 22310 mSDsCounter, 0 mSdLazyCounter, 5015 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 23282 SdHoareTripleChecker+Invalid, 5080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 5015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:14:50,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 23282 Invalid, 5080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 5015 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-10-11 19:14:50,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2024-10-11 19:14:50,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1149. [2024-10-11 19:14:50,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 647 states have (on average 1.8748068006182381) internal successors, (1213), 1139 states have internal predecessors, (1213), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-10-11 19:14:50,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1247 transitions. [2024-10-11 19:14:50,560 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1247 transitions. Word has length 81 [2024-10-11 19:14:50,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:14:50,560 INFO L471 AbstractCegarLoop]: Abstraction has 1149 states and 1247 transitions. [2024-10-11 19:14:50,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:14:50,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1247 transitions. [2024-10-11 19:14:50,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-11 19:14:50,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:14:50,561 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:14:50,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (18)] Ended with exit code 0 [2024-10-11 19:14:50,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 [2024-10-11 19:14:50,762 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:14:50,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:14:50,763 INFO L85 PathProgramCache]: Analyzing trace with hash 151378370, now seen corresponding path program 5 times [2024-10-11 19:14:50,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:14:50,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262990734] [2024-10-11 19:14:50,763 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 19:14:50,763 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 [2024-10-11 19:14:50,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:14:50,764 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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) [2024-10-11 19:14:50,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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 (19)] Waiting until timeout for monitored process [2024-10-11 19:14:51,765 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-11 19:14:51,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:14:51,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-10-11 19:14:51,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:14:51,802 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-10-11 19:14:51,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 22 [2024-10-11 19:14:52,058 INFO L349 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2024-10-11 19:14:52,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2024-10-11 19:14:52,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 19:14:52,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2024-10-11 19:14:53,790 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-11 19:14:53,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 59 [2024-10-11 19:14:53,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 27 [2024-10-11 19:14:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-10-11 19:14:53,909 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:14:54,136 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1646 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_1646) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-10-11 19:14:54,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:14:54,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262990734] [2024-10-11 19:14:54,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262990734] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:14:54,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1563708169] [2024-10-11 19:14:54,138 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 19:14:54,138 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-11 19:14:54,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-11 19:14:54,141 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-11 19:14:54,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process