./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_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 11:56:27,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 11:56:27,955 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 11:56:27,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 11:56:27,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 11:56:27,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 11:56:27,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 11:56:27,981 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 11:56:27,981 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 11:56:27,982 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 11:56:27,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 11:56:27,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 11:56:27,983 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 11:56:27,985 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 11:56:27,985 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 11:56:27,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 11:56:27,985 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 11:56:27,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 11:56:27,986 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 11:56:27,986 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 11:56:27,989 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 11:56:27,990 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 11:56:27,990 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 11:56:27,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 11:56:27,990 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 11:56:27,991 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 11:56:27,991 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 11:56:27,991 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 11:56:27,991 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 11:56:27,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 11:56:27,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 11:56:27,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 11:56:27,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 11:56:27,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:56:27,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 11:56:27,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 11:56:27,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 11:56:27,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 11:56:27,992 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 11:56:27,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 11:56:27,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 11:56:27,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 11:56:27,993 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 [2024-10-13 11:56:28,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 11:56:28,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 11:56:28,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 11:56:28,216 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 11:56:28,216 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 11:56:28,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2024-10-13 11:56:29,419 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 11:56:29,671 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 11:56:29,673 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2024-10-13 11:56:29,696 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df03a4492/4ec9e6d6798d467284e9a0d05d704431/FLAGc7ab6d454 [2024-10-13 11:56:30,011 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df03a4492/4ec9e6d6798d467284e9a0d05d704431 [2024-10-13 11:56:30,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 11:56:30,014 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 11:56:30,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 11:56:30,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 11:56:30,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 11:56:30,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:56:30" (1/1) ... [2024-10-13 11:56:30,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8142442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:30, skipping insertion in model container [2024-10-13 11:56:30,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:56:30" (1/1) ... [2024-10-13 11:56:30,064 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:56:30,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:56:30,456 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) [2024-10-13 11:56:30,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@35ec4232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:30, skipping insertion in model container [2024-10-13 11:56:30,457 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 11:56:30,457 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-13 11:56:30,459 INFO L158 Benchmark]: Toolchain (without parser) took 444.09ms. Allocated memory is still 178.3MB. Free memory was 140.7MB in the beginning and 118.6MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-13 11:56:30,460 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 117.4MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 11:56:30,460 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.45ms. Allocated memory is still 178.3MB. Free memory was 140.2MB in the beginning and 118.6MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-13 11:56:30,461 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.07ms. Allocated memory is still 117.4MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 442.45ms. Allocated memory is still 178.3MB. Free memory was 140.2MB in the beginning and 118.6MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 815]: 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/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 11:56:31,986 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 11:56:32,049 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-13 11:56:32,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 11:56:32,055 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 11:56:32,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 11:56:32,082 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 11:56:32,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 11:56:32,082 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 11:56:32,083 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 11:56:32,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 11:56:32,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 11:56:32,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 11:56:32,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 11:56:32,087 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 11:56:32,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 11:56:32,089 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 11:56:32,090 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 11:56:32,090 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 11:56:32,090 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 11:56:32,090 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 11:56:32,091 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 11:56:32,091 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 11:56:32,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 11:56:32,094 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 11:56:32,094 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-13 11:56:32,094 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 11:56:32,094 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-13 11:56:32,094 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 11:56:32,094 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 11:56:32,095 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 11:56:32,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 11:56:32,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 11:56:32,096 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 11:56:32,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 11:56:32,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:56:32,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 11:56:32,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 11:56:32,097 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-13 11:56:32,097 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-13 11:56:32,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 11:56:32,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 11:56:32,098 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 11:56:32,098 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 11:56:32,098 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-13 11:56:32,099 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da01f7e29b47732481465e941f69a1c8f9dd5529ae81cb8448eb7568570e2356 [2024-10-13 11:56:32,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 11:56:32,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 11:56:32,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 11:56:32,387 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 11:56:32,387 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 11:56:32,388 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2024-10-13 11:56:33,684 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 11:56:33,944 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 11:56:33,945 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-2.i [2024-10-13 11:56:33,965 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/777d087ec/5f992f3db62545cbbd2815842302532e/FLAG1eb188f9b [2024-10-13 11:56:33,982 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/777d087ec/5f992f3db62545cbbd2815842302532e [2024-10-13 11:56:33,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 11:56:33,985 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 11:56:33,987 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 11:56:33,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 11:56:33,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 11:56:33,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:56:33" (1/1) ... [2024-10-13 11:56:33,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43104e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:33, skipping insertion in model container [2024-10-13 11:56:33,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:56:33" (1/1) ... [2024-10-13 11:56:34,044 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:56:34,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:56:34,471 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-13 11:56:34,487 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 11:56:34,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:56:34,586 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 11:56:34,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 11:56:34,689 INFO L204 MainTranslator]: Completed translation [2024-10-13 11:56:34,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:34 WrapperNode [2024-10-13 11:56:34,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 11:56:34,690 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 11:56:34,690 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 11:56:34,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 11:56:34,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:34" (1/1) ... [2024-10-13 11:56:34,730 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:34" (1/1) ... [2024-10-13 11:56:34,783 INFO L138 Inliner]: procedures = 211, calls = 280, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1082 [2024-10-13 11:56:34,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 11:56:34,784 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 11:56:34,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 11:56:34,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 11:56:34,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:34" (1/1) ... [2024-10-13 11:56:34,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:34" (1/1) ... [2024-10-13 11:56:34,805 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:34" (1/1) ... [2024-10-13 11:56:34,861 INFO L175 MemorySlicer]: Split 256 memory accesses to 3 slices as follows [220, 2, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0]. The 54 writes are split as follows [50, 0, 4]. [2024-10-13 11:56:34,861 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:34" (1/1) ... [2024-10-13 11:56:34,861 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:34" (1/1) ... [2024-10-13 11:56:34,909 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:34" (1/1) ... [2024-10-13 11:56:34,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:34" (1/1) ... [2024-10-13 11:56:34,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:34" (1/1) ... [2024-10-13 11:56:34,931 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:34" (1/1) ... [2024-10-13 11:56:34,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 11:56:34,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 11:56:34,937 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 11:56:34,937 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 11:56:34,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:34" (1/1) ... [2024-10-13 11:56:34,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 11:56:34,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 11:56:34,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 11:56:34,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 11:56:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-13 11:56:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-13 11:56:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-13 11:56:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-13 11:56:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-10-13 11:56:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-13 11:56:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-13 11:56:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-13 11:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-13 11:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-13 11:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-13 11:56:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-13 11:56:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-13 11:56:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-13 11:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 11:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 11:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 11:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 11:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 11:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-13 11:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-13 11:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-13 11:56:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-13 11:56:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-13 11:56:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-13 11:56:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 11:56:35,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 11:56:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 11:56:35,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 11:56:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 11:56:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 11:56:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 11:56:35,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 11:56:35,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 11:56:35,167 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 11:56:35,169 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 11:56:35,186 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 11:56:35,215 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 11:56:35,232 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 11:56:37,726 INFO L? ?]: Removed 1101 outVars from TransFormulas that were not future-live. [2024-10-13 11:56:37,727 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 11:56:37,859 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 11:56:37,859 INFO L314 CfgBuilder]: Removed 63 assume(true) statements. [2024-10-13 11:56:37,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:56:37 BoogieIcfgContainer [2024-10-13 11:56:37,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 11:56:37,861 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 11:56:37,861 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 11:56:37,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 11:56:37,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:56:33" (1/3) ... [2024-10-13 11:56:37,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0c9102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:56:37, skipping insertion in model container [2024-10-13 11:56:37,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:56:34" (2/3) ... [2024-10-13 11:56:37,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0c9102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:56:37, skipping insertion in model container [2024-10-13 11:56:37,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:56:37" (3/3) ... [2024-10-13 11:56:37,867 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test2-2.i [2024-10-13 11:56:37,880 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 11:56:37,880 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 529 error locations. [2024-10-13 11:56:37,938 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 11:56:37,945 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;@201d0011, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 11:56:37,945 INFO L334 AbstractCegarLoop]: Starting to check reachability of 529 error locations. [2024-10-13 11:56:37,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 978 states, 438 states have (on average 2.5) internal successors, (1095), 971 states have internal predecessors, (1095), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-13 11:56:37,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-13 11:56:37,955 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:37,955 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-13 11:56:37,955 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:37,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:37,960 INFO L85 PathProgramCache]: Analyzing trace with hash 55623, now seen corresponding path program 1 times [2024-10-13 11:56:37,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:37,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242602107] [2024-10-13 11:56:37,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:37,969 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 [2024-10-13 11:56:37,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:37,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/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) [2024-10-13 11:56:37,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:38,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:56:38,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:38,147 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 [2024-10-13 11:56:38,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:38,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:38,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:38,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242602107] [2024-10-13 11:56:38,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242602107] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:38,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:38,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 11:56:38,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894300520] [2024-10-13 11:56:38,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:38,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:56:38,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:38,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:56:38,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:56:38,193 INFO L87 Difference]: Start difference. First operand has 978 states, 438 states have (on average 2.5) internal successors, (1095), 971 states have internal predecessors, (1095), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-13 11:56:39,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:39,396 INFO L93 Difference]: Finished difference Result 1128 states and 1205 transitions. [2024-10-13 11:56:39,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:56:39,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-10-13 11:56:39,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:39,416 INFO L225 Difference]: With dead ends: 1128 [2024-10-13 11:56:39,416 INFO L226 Difference]: Without dead ends: 1127 [2024-10-13 11:56:39,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:56:39,420 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 891 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:39,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 671 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 11:56:39,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2024-10-13 11:56:39,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 963. [2024-10-13 11:56:39,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 441 states have (on average 2.2970521541950113) internal successors, (1013), 956 states have internal predecessors, (1013), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 11:56:39,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1031 transitions. [2024-10-13 11:56:39,474 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1031 transitions. Word has length 2 [2024-10-13 11:56:39,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:39,474 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1031 transitions. [2024-10-13 11:56:39,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-13 11:56:39,475 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1031 transitions. [2024-10-13 11:56:39,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-13 11:56:39,475 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:39,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-13 11:56:39,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:39,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/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 [2024-10-13 11:56:39,678 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:39,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:39,678 INFO L85 PathProgramCache]: Analyzing trace with hash 55624, now seen corresponding path program 1 times [2024-10-13 11:56:39,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:39,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179075632] [2024-10-13 11:56:39,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:39,679 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 [2024-10-13 11:56:39,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:39,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/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) [2024-10-13 11:56:39,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:39,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:56:39,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:39,765 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 [2024-10-13 11:56:39,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:39,775 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:39,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:39,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179075632] [2024-10-13 11:56:39,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179075632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:39,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:39,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 11:56:39,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177762546] [2024-10-13 11:56:39,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:39,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:56:39,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:39,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:56:39,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:56:39,780 INFO L87 Difference]: Start difference. First operand 963 states and 1031 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-13 11:56:41,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:41,402 INFO L93 Difference]: Finished difference Result 1350 states and 1461 transitions. [2024-10-13 11:56:41,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:56:41,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-10-13 11:56:41,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:41,406 INFO L225 Difference]: With dead ends: 1350 [2024-10-13 11:56:41,407 INFO L226 Difference]: Without dead ends: 1350 [2024-10-13 11:56:41,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:56:41,408 INFO L432 NwaCegarLoop]: 763 mSDtfsCounter, 419 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:41,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1261 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-13 11:56:41,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2024-10-13 11:56:41,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1079. [2024-10-13 11:56:41,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 553 states have (on average 2.236889692585895) internal successors, (1237), 1072 states have internal predecessors, (1237), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:56:41,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1265 transitions. [2024-10-13 11:56:41,432 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1265 transitions. Word has length 2 [2024-10-13 11:56:41,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:41,432 INFO L471 AbstractCegarLoop]: Abstraction has 1079 states and 1265 transitions. [2024-10-13 11:56:41,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-13 11:56:41,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1265 transitions. [2024-10-13 11:56:41,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-13 11:56:41,433 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:41,433 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 11:56:41,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-10-13 11:56:41,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/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 [2024-10-13 11:56:41,634 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:41,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:41,634 INFO L85 PathProgramCache]: Analyzing trace with hash -170130095, now seen corresponding path program 1 times [2024-10-13 11:56:41,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:41,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415712495] [2024-10-13 11:56:41,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:41,635 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 [2024-10-13 11:56:41,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:41,637 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/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) [2024-10-13 11:56:41,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:41,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 11:56:41,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:41,743 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 [2024-10-13 11:56:41,747 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 [2024-10-13 11:56:41,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 11:56:41,797 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 [2024-10-13 11:56:41,808 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 11:56:41,808 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 [2024-10-13 11:56:41,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:41,833 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:41,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:41,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415712495] [2024-10-13 11:56:41,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415712495] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:41,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:41,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:56:41,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864797473] [2024-10-13 11:56:41,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:41,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:56:41,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:41,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:56:41,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:56:41,834 INFO L87 Difference]: Start difference. First operand 1079 states and 1265 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 11:56:43,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:43,580 INFO L93 Difference]: Finished difference Result 1232 states and 1426 transitions. [2024-10-13 11:56:43,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:56:43,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-13 11:56:43,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:43,584 INFO L225 Difference]: With dead ends: 1232 [2024-10-13 11:56:43,584 INFO L226 Difference]: Without dead ends: 1232 [2024-10-13 11:56:43,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:56:43,585 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 2033 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:43,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2041 Valid, 346 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-13 11:56:43,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-10-13 11:56:43,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 951. [2024-10-13 11:56:43,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 441 states have (on average 2.2675736961451247) internal successors, (1000), 944 states have internal predecessors, (1000), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 11:56:43,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1018 transitions. [2024-10-13 11:56:43,616 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1018 transitions. Word has length 6 [2024-10-13 11:56:43,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:43,616 INFO L471 AbstractCegarLoop]: Abstraction has 951 states and 1018 transitions. [2024-10-13 11:56:43,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 11:56:43,617 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1018 transitions. [2024-10-13 11:56:43,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-13 11:56:43,617 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:43,617 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:56:43,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:43,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/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 [2024-10-13 11:56:43,818 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:43,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:43,819 INFO L85 PathProgramCache]: Analyzing trace with hash -979065647, now seen corresponding path program 1 times [2024-10-13 11:56:43,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:43,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690068648] [2024-10-13 11:56:43,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:43,820 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 [2024-10-13 11:56:43,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:43,822 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/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) [2024-10-13 11:56:43,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:43,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:56:43,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:43,916 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 [2024-10-13 11:56:43,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:43,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:43,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:43,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690068648] [2024-10-13 11:56:43,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [690068648] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:43,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:43,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:56:43,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885786635] [2024-10-13 11:56:43,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:43,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:56:43,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:43,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:56:43,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:56:43,936 INFO L87 Difference]: Start difference. First operand 951 states and 1018 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-10-13 11:56:45,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:45,371 INFO L93 Difference]: Finished difference Result 1219 states and 1325 transitions. [2024-10-13 11:56:45,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:56:45,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2024-10-13 11:56:45,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:45,376 INFO L225 Difference]: With dead ends: 1219 [2024-10-13 11:56:45,376 INFO L226 Difference]: Without dead ends: 1219 [2024-10-13 11:56:45,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:56:45,380 INFO L432 NwaCegarLoop]: 933 mSDtfsCounter, 460 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:45,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1299 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-13 11:56:45,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2024-10-13 11:56:45,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 968. [2024-10-13 11:56:45,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 468 states have (on average 2.2606837606837606) internal successors, (1058), 961 states have internal predecessors, (1058), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 11:56:45,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1076 transitions. [2024-10-13 11:56:45,403 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1076 transitions. Word has length 7 [2024-10-13 11:56:45,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:45,404 INFO L471 AbstractCegarLoop]: Abstraction has 968 states and 1076 transitions. [2024-10-13 11:56:45,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-10-13 11:56:45,405 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1076 transitions. [2024-10-13 11:56:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-13 11:56:45,406 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:45,406 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:56:45,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:45,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/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 [2024-10-13 11:56:45,607 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:45,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:45,607 INFO L85 PathProgramCache]: Analyzing trace with hash -979065648, now seen corresponding path program 1 times [2024-10-13 11:56:45,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:45,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168958731] [2024-10-13 11:56:45,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:45,608 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 [2024-10-13 11:56:45,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:45,610 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/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) [2024-10-13 11:56:45,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:45,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:56:45,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:45,705 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 [2024-10-13 11:56:45,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:45,712 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:45,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:45,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168958731] [2024-10-13 11:56:45,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168958731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:45,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:45,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:56:45,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497178273] [2024-10-13 11:56:45,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:45,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:56:45,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:45,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:56:45,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:56:45,714 INFO L87 Difference]: Start difference. First operand 968 states and 1076 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-10-13 11:56:46,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:46,736 INFO L93 Difference]: Finished difference Result 1126 states and 1262 transitions. [2024-10-13 11:56:46,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:56:46,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2024-10-13 11:56:46,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:46,739 INFO L225 Difference]: With dead ends: 1126 [2024-10-13 11:56:46,739 INFO L226 Difference]: Without dead ends: 1126 [2024-10-13 11:56:46,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:56:46,740 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 681 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:46,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 988 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-13 11:56:46,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-10-13 11:56:46,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 921. [2024-10-13 11:56:46,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 468 states have (on average 2.1517094017094016) internal successors, (1007), 914 states have internal predecessors, (1007), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-13 11:56:46,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1025 transitions. [2024-10-13 11:56:46,751 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1025 transitions. Word has length 7 [2024-10-13 11:56:46,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:46,751 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1025 transitions. [2024-10-13 11:56:46,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-10-13 11:56:46,752 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1025 transitions. [2024-10-13 11:56:46,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-13 11:56:46,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:46,752 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:56:46,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2024-10-13 11:56:46,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/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 [2024-10-13 11:56:46,955 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr422REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:46,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:46,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1432976317, now seen corresponding path program 1 times [2024-10-13 11:56:46,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:46,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204128635] [2024-10-13 11:56:46,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:46,956 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 [2024-10-13 11:56:46,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:46,957 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/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) [2024-10-13 11:56:46,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:47,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:56:47,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:47,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:47,091 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:47,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:47,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204128635] [2024-10-13 11:56:47,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204128635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:47,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:47,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 11:56:47,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213391376] [2024-10-13 11:56:47,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:47,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:56:47,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:47,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:56:47,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:56:47,092 INFO L87 Difference]: Start difference. First operand 921 states and 1025 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2024-10-13 11:56:47,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:47,703 INFO L93 Difference]: Finished difference Result 1326 states and 1496 transitions. [2024-10-13 11:56:47,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:56:47,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 [2024-10-13 11:56:47,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:47,707 INFO L225 Difference]: With dead ends: 1326 [2024-10-13 11:56:47,707 INFO L226 Difference]: Without dead ends: 1326 [2024-10-13 11:56:47,708 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 [2024-10-13 11:56:47,708 INFO L432 NwaCegarLoop]: 897 mSDtfsCounter, 431 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:47,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 1665 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 11:56:47,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2024-10-13 11:56:47,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1075. [2024-10-13 11:56:47,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 617 states have (on average 2.081037277147488) internal successors, (1284), 1068 states have internal predecessors, (1284), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:56:47,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1312 transitions. [2024-10-13 11:56:47,726 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1312 transitions. Word has length 10 [2024-10-13 11:56:47,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:47,726 INFO L471 AbstractCegarLoop]: Abstraction has 1075 states and 1312 transitions. [2024-10-13 11:56:47,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2024-10-13 11:56:47,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1312 transitions. [2024-10-13 11:56:47,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-13 11:56:47,727 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:47,727 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:56:47,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:47,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/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 [2024-10-13 11:56:47,928 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr330REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:47,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:47,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1214525722, now seen corresponding path program 1 times [2024-10-13 11:56:47,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:47,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230381143] [2024-10-13 11:56:47,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:47,929 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 [2024-10-13 11:56:47,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:47,930 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/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) [2024-10-13 11:56:47,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:48,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 11:56:48,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:48,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:48,025 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:48,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:48,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230381143] [2024-10-13 11:56:48,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230381143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:48,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:48,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:56:48,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166576754] [2024-10-13 11:56:48,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:48,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:56:48,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:48,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:56:48,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:56:48,027 INFO L87 Difference]: Start difference. First operand 1075 states and 1312 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2024-10-13 11:56:48,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:48,413 INFO L93 Difference]: Finished difference Result 1021 states and 1232 transitions. [2024-10-13 11:56:48,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:56:48,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 [2024-10-13 11:56:48,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:48,417 INFO L225 Difference]: With dead ends: 1021 [2024-10-13 11:56:48,417 INFO L226 Difference]: Without dead ends: 1021 [2024-10-13 11:56:48,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:56:48,418 INFO L432 NwaCegarLoop]: 800 mSDtfsCounter, 61 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:48,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1558 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 11:56:48,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2024-10-13 11:56:48,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1021. [2024-10-13 11:56:48,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 587 states have (on average 2.0511073253833048) internal successors, (1204), 1014 states have internal predecessors, (1204), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:56:48,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1232 transitions. [2024-10-13 11:56:48,432 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1232 transitions. Word has length 12 [2024-10-13 11:56:48,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:48,433 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1232 transitions. [2024-10-13 11:56:48,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2024-10-13 11:56:48,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1232 transitions. [2024-10-13 11:56:48,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-13 11:56:48,434 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:48,434 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:56:48,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-10-13 11:56:48,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/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 [2024-10-13 11:56:48,635 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr424REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:48,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:48,636 INFO L85 PathProgramCache]: Analyzing trace with hash -2110353888, now seen corresponding path program 1 times [2024-10-13 11:56:48,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:48,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27944486] [2024-10-13 11:56:48,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:48,636 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 [2024-10-13 11:56:48,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:48,638 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/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) [2024-10-13 11:56:48,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:48,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 11:56:48,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:48,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:48,782 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:48,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:48,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27944486] [2024-10-13 11:56:48,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27944486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:48,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:48,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:56:48,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700391663] [2024-10-13 11:56:48,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:48,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:56:48,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:48,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:56:48,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:56:48,784 INFO L87 Difference]: Start difference. First operand 1021 states and 1232 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 11:56:49,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:49,638 INFO L93 Difference]: Finished difference Result 1250 states and 1418 transitions. [2024-10-13 11:56:49,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:56:49,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-13 11:56:49,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:49,642 INFO L225 Difference]: With dead ends: 1250 [2024-10-13 11:56:49,642 INFO L226 Difference]: Without dead ends: 1250 [2024-10-13 11:56:49,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:56:49,643 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 394 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 2358 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:49,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 2358 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 11:56:49,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-10-13 11:56:49,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1023. [2024-10-13 11:56:49,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 589 states have (on average 2.0475382003395586) internal successors, (1206), 1016 states have internal predecessors, (1206), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:56:49,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1234 transitions. [2024-10-13 11:56:49,655 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1234 transitions. Word has length 13 [2024-10-13 11:56:49,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:49,656 INFO L471 AbstractCegarLoop]: Abstraction has 1023 states and 1234 transitions. [2024-10-13 11:56:49,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 11:56:49,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1234 transitions. [2024-10-13 11:56:49,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-13 11:56:49,657 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:49,657 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:56:49,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:49,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/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 [2024-10-13 11:56:49,858 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr527ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:49,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:49,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2110346978, now seen corresponding path program 1 times [2024-10-13 11:56:49,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:49,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971904518] [2024-10-13 11:56:49,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:49,858 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 [2024-10-13 11:56:49,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:49,860 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/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) [2024-10-13 11:56:49,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:49,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 11:56:49,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:49,971 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 11:56:49,971 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 11:56:49,972 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 11:56:49,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-10-13 11:56:50,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 11:56:50,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-10-13 11:56:50,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:50,016 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:50,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:50,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971904518] [2024-10-13 11:56:50,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971904518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:50,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:50,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:56:50,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447776168] [2024-10-13 11:56:50,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:50,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:56:50,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:50,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:56:50,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:56:50,018 INFO L87 Difference]: Start difference. First operand 1023 states and 1234 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 11:56:50,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:50,877 INFO L93 Difference]: Finished difference Result 1775 states and 2009 transitions. [2024-10-13 11:56:50,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:56:50,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-13 11:56:50,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:50,881 INFO L225 Difference]: With dead ends: 1775 [2024-10-13 11:56:50,881 INFO L226 Difference]: Without dead ends: 1775 [2024-10-13 11:56:50,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:56:50,882 INFO L432 NwaCegarLoop]: 978 mSDtfsCounter, 842 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:50,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 2745 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 11:56:50,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2024-10-13 11:56:50,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1022. [2024-10-13 11:56:50,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 588 states have (on average 2.0476190476190474) internal successors, (1204), 1015 states have internal predecessors, (1204), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:56:50,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1232 transitions. [2024-10-13 11:56:50,907 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1232 transitions. Word has length 13 [2024-10-13 11:56:50,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:50,907 INFO L471 AbstractCegarLoop]: Abstraction has 1022 states and 1232 transitions. [2024-10-13 11:56:50,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 11:56:50,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1232 transitions. [2024-10-13 11:56:50,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-13 11:56:50,907 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:50,907 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:56:50,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2024-10-13 11:56:51,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/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 [2024-10-13 11:56:51,108 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:51,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:51,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1015086425, now seen corresponding path program 1 times [2024-10-13 11:56:51,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:51,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099885742] [2024-10-13 11:56:51,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:51,109 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 [2024-10-13 11:56:51,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:51,111 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/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) [2024-10-13 11:56:51,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:51,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 11:56:51,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:51,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:51,223 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:51,224 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:51,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099885742] [2024-10-13 11:56:51,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099885742] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:51,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:51,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:56:51,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131027062] [2024-10-13 11:56:51,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:51,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 11:56:51,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:51,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 11:56:51,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:56:51,225 INFO L87 Difference]: Start difference. First operand 1022 states and 1232 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-10-13 11:56:51,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:51,595 INFO L93 Difference]: Finished difference Result 968 states and 1152 transitions. [2024-10-13 11:56:51,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 11:56:51,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2024-10-13 11:56:51,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:51,599 INFO L225 Difference]: With dead ends: 968 [2024-10-13 11:56:51,599 INFO L226 Difference]: Without dead ends: 968 [2024-10-13 11:56:51,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 11:56:51,599 INFO L432 NwaCegarLoop]: 763 mSDtfsCounter, 61 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:51,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 1484 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 11:56:51,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2024-10-13 11:56:51,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2024-10-13 11:56:51,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 558 states have (on average 2.014336917562724) internal successors, (1124), 961 states have internal predecessors, (1124), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:56:51,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1152 transitions. [2024-10-13 11:56:51,610 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1152 transitions. Word has length 15 [2024-10-13 11:56:51,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:51,610 INFO L471 AbstractCegarLoop]: Abstraction has 968 states and 1152 transitions. [2024-10-13 11:56:51,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-10-13 11:56:51,610 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1152 transitions. [2024-10-13 11:56:51,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-13 11:56:51,611 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:51,611 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 11:56:51,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:51,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/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 [2024-10-13 11:56:51,811 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:51,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:51,812 INFO L85 PathProgramCache]: Analyzing trace with hash -540480991, now seen corresponding path program 1 times [2024-10-13 11:56:51,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:51,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324240499] [2024-10-13 11:56:51,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:51,812 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 [2024-10-13 11:56:51,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:51,813 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/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) [2024-10-13 11:56:51,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:51,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:56:51,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:51,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:51,933 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:51,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:51,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324240499] [2024-10-13 11:56:51,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324240499] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:51,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:51,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:56:51,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183144287] [2024-10-13 11:56:51,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:51,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:56:51,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:51,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:56:51,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:56:51,934 INFO L87 Difference]: Start difference. First operand 968 states and 1152 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-10-13 11:56:52,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:52,416 INFO L93 Difference]: Finished difference Result 952 states and 1108 transitions. [2024-10-13 11:56:52,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 11:56:52,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2024-10-13 11:56:52,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:52,420 INFO L225 Difference]: With dead ends: 952 [2024-10-13 11:56:52,420 INFO L226 Difference]: Without dead ends: 952 [2024-10-13 11:56:52,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:56:52,421 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 45 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:52,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2178 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 11:56:52,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-10-13 11:56:52,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 952. [2024-10-13 11:56:52,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 556 states have (on average 1.9424460431654675) internal successors, (1080), 945 states have internal predecessors, (1080), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:56:52,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1108 transitions. [2024-10-13 11:56:52,431 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1108 transitions. Word has length 17 [2024-10-13 11:56:52,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:52,432 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1108 transitions. [2024-10-13 11:56:52,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2024-10-13 11:56:52,432 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1108 transitions. [2024-10-13 11:56:52,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-13 11:56:52,433 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:52,433 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] [2024-10-13 11:56:52,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:52,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/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 [2024-10-13 11:56:52,634 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:52,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:52,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1534247825, now seen corresponding path program 1 times [2024-10-13 11:56:52,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:52,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253993607] [2024-10-13 11:56:52,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:52,635 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 [2024-10-13 11:56:52,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:52,637 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/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) [2024-10-13 11:56:52,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:52,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:56:52,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:52,757 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 [2024-10-13 11:56:52,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:52,818 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:52,818 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:52,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253993607] [2024-10-13 11:56:52,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253993607] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:52,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:52,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:56:52,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243203833] [2024-10-13 11:56:52,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:52,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:56:52,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:52,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:56:52,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:56:52,819 INFO L87 Difference]: Start difference. First operand 952 states and 1108 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-10-13 11:56:53,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:53,785 INFO L93 Difference]: Finished difference Result 956 states and 1108 transitions. [2024-10-13 11:56:53,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:56:53,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2024-10-13 11:56:53,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:53,788 INFO L225 Difference]: With dead ends: 956 [2024-10-13 11:56:53,788 INFO L226 Difference]: Without dead ends: 956 [2024-10-13 11:56:53,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:56:53,788 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 583 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:53,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 936 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 11:56:53,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-10-13 11:56:53,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 948. [2024-10-13 11:56:53,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 556 states have (on average 1.9280575539568345) internal successors, (1072), 941 states have internal predecessors, (1072), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:56:53,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1100 transitions. [2024-10-13 11:56:53,797 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1100 transitions. Word has length 31 [2024-10-13 11:56:53,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:53,798 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1100 transitions. [2024-10-13 11:56:53,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-10-13 11:56:53,798 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1100 transitions. [2024-10-13 11:56:53,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-13 11:56:53,798 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:53,798 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] [2024-10-13 11:56:53,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2024-10-13 11:56:53,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/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 [2024-10-13 11:56:53,999 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:53,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:53,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1534247824, now seen corresponding path program 1 times [2024-10-13 11:56:53,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:53,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145170228] [2024-10-13 11:56:54,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:54,000 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 [2024-10-13 11:56:54,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:54,002 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/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) [2024-10-13 11:56:54,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:54,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 11:56:54,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:54,136 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 [2024-10-13 11:56:54,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:54,252 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:54,252 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:54,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145170228] [2024-10-13 11:56:54,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145170228] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:54,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:54,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:56:54,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972492247] [2024-10-13 11:56:54,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:54,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:56:54,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:54,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:56:54,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:56:54,254 INFO L87 Difference]: Start difference. First operand 948 states and 1100 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-10-13 11:56:55,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:55,774 INFO L93 Difference]: Finished difference Result 1231 states and 1425 transitions. [2024-10-13 11:56:55,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:56:55,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2024-10-13 11:56:55,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:55,778 INFO L225 Difference]: With dead ends: 1231 [2024-10-13 11:56:55,778 INFO L226 Difference]: Without dead ends: 1231 [2024-10-13 11:56:55,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:56:55,779 INFO L432 NwaCegarLoop]: 874 mSDtfsCounter, 358 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:55,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1752 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-13 11:56:55,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-10-13 11:56:55,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 944. [2024-10-13 11:56:55,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 556 states have (on average 1.9136690647482015) internal successors, (1064), 937 states have internal predecessors, (1064), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:56:55,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1092 transitions. [2024-10-13 11:56:55,788 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1092 transitions. Word has length 31 [2024-10-13 11:56:55,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:55,788 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1092 transitions. [2024-10-13 11:56:55,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-10-13 11:56:55,789 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1092 transitions. [2024-10-13 11:56:55,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-13 11:56:55,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:55,789 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] [2024-10-13 11:56:55,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-10-13 11:56:55,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/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 [2024-10-13 11:56:55,994 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:55,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:55,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1733807225, now seen corresponding path program 1 times [2024-10-13 11:56:55,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:55,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091506833] [2024-10-13 11:56:55,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:55,995 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 [2024-10-13 11:56:55,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:55,996 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/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) [2024-10-13 11:56:55,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:56,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:56:56,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:56,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:56,186 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:56,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:56,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091506833] [2024-10-13 11:56:56,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091506833] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:56,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:56,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:56:56,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923277441] [2024-10-13 11:56:56,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:56,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:56:56,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:56,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:56:56,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:56:56,188 INFO L87 Difference]: Start difference. First operand 944 states and 1092 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-10-13 11:56:56,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:56,651 INFO L93 Difference]: Finished difference Result 932 states and 1072 transitions. [2024-10-13 11:56:56,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 11:56:56,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2024-10-13 11:56:56,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:56,654 INFO L225 Difference]: With dead ends: 932 [2024-10-13 11:56:56,654 INFO L226 Difference]: Without dead ends: 932 [2024-10-13 11:56:56,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:56:56,655 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 15 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:56,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2161 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 11:56:56,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2024-10-13 11:56:56,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 932. [2024-10-13 11:56:56,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 544 states have (on average 1.9191176470588236) internal successors, (1044), 925 states have internal predecessors, (1044), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:56:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1072 transitions. [2024-10-13 11:56:56,673 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1072 transitions. Word has length 50 [2024-10-13 11:56:56,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:56,673 INFO L471 AbstractCegarLoop]: Abstraction has 932 states and 1072 transitions. [2024-10-13 11:56:56,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-10-13 11:56:56,674 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1072 transitions. [2024-10-13 11:56:56,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-13 11:56:56,675 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:56,675 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] [2024-10-13 11:56:56,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2024-10-13 11:56:56,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/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 [2024-10-13 11:56:56,876 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:56,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:56,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1202208248, now seen corresponding path program 1 times [2024-10-13 11:56:56,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:56,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097718925] [2024-10-13 11:56:56,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:56,877 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 [2024-10-13 11:56:56,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:56,878 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/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) [2024-10-13 11:56:56,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:57,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 11:56:57,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:57,117 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 [2024-10-13 11:56:57,121 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 [2024-10-13 11:56:57,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 11:56:57,441 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 [2024-10-13 11:56:57,450 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-13 11:56:57,450 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 [2024-10-13 11:56:57,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:57,457 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:57,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:57,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097718925] [2024-10-13 11:56:57,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097718925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:57,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:57,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 11:56:57,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807485311] [2024-10-13 11:56:57,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:57,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:56:57,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:57,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:56:57,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:56:57,459 INFO L87 Difference]: Start difference. First operand 932 states and 1072 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 11:56:58,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:56:58,536 INFO L93 Difference]: Finished difference Result 894 states and 1034 transitions. [2024-10-13 11:56:58,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:56:58,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-10-13 11:56:58,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:56:58,539 INFO L225 Difference]: With dead ends: 894 [2024-10-13 11:56:58,539 INFO L226 Difference]: Without dead ends: 894 [2024-10-13 11:56:58,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:56:58,539 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 516 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 11:56:58,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 510 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 11:56:58,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2024-10-13 11:56:58,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 867. [2024-10-13 11:56:58,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 517 states have (on average 1.8220502901353965) internal successors, (942), 860 states have internal predecessors, (942), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:56:58,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 970 transitions. [2024-10-13 11:56:58,548 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 970 transitions. Word has length 54 [2024-10-13 11:56:58,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:56:58,548 INFO L471 AbstractCegarLoop]: Abstraction has 867 states and 970 transitions. [2024-10-13 11:56:58,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 11:56:58,548 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 970 transitions. [2024-10-13 11:56:58,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-13 11:56:58,550 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:56:58,550 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] [2024-10-13 11:56:58,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:58,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/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 [2024-10-13 11:56:58,751 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:56:58,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:56:58,751 INFO L85 PathProgramCache]: Analyzing trace with hash -307702477, now seen corresponding path program 1 times [2024-10-13 11:56:58,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:56:58,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496527491] [2024-10-13 11:56:58,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:56:58,752 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 [2024-10-13 11:56:58,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:56:58,755 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/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) [2024-10-13 11:56:58,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:56:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:56:58,929 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 11:56:58,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:56:58,936 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 [2024-10-13 11:56:58,945 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 [2024-10-13 11:56:58,958 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 [2024-10-13 11:56:58,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:56:58,963 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:56:58,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:56:58,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496527491] [2024-10-13 11:56:58,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496527491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:56:58,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:56:58,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:56:58,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035296444] [2024-10-13 11:56:58,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:56:58,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 11:56:58,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:56:58,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 11:56:58,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:56:58,964 INFO L87 Difference]: Start difference. First operand 867 states and 970 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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) [2024-10-13 11:57:00,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:00,191 INFO L93 Difference]: Finished difference Result 866 states and 969 transitions. [2024-10-13 11:57:00,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 11:57:00,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 58 [2024-10-13 11:57:00,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:00,193 INFO L225 Difference]: With dead ends: 866 [2024-10-13 11:57:00,193 INFO L226 Difference]: Without dead ends: 866 [2024-10-13 11:57:00,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 11:57:00,194 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 2 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:00,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1865 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 11:57:00,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-10-13 11:57:00,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2024-10-13 11:57:00,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 517 states have (on average 1.8201160541586074) internal successors, (941), 859 states have internal predecessors, (941), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:57:00,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 969 transitions. [2024-10-13 11:57:00,201 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 969 transitions. Word has length 58 [2024-10-13 11:57:00,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:00,202 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 969 transitions. [2024-10-13 11:57:00,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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) [2024-10-13 11:57:00,202 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 969 transitions. [2024-10-13 11:57:00,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-13 11:57:00,202 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:00,202 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] [2024-10-13 11:57:00,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2024-10-13 11:57:00,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/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 [2024-10-13 11:57:00,403 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:57:00,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:00,404 INFO L85 PathProgramCache]: Analyzing trace with hash -307702476, now seen corresponding path program 1 times [2024-10-13 11:57:00,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:00,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774492137] [2024-10-13 11:57:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:00,404 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 [2024-10-13 11:57:00,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:00,405 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/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) [2024-10-13 11:57:00,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:57:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:00,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-13 11:57:00,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:00,596 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 [2024-10-13 11:57:00,606 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 [2024-10-13 11:57:00,610 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 [2024-10-13 11:57:00,635 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 [2024-10-13 11:57:00,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:00,647 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:00,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:00,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774492137] [2024-10-13 11:57:00,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774492137] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:00,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:00,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:57:00,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729916443] [2024-10-13 11:57:00,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:00,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 11:57:00,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:00,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 11:57:00,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 11:57:00,649 INFO L87 Difference]: Start difference. First operand 866 states and 969 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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) [2024-10-13 11:57:02,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:02,158 INFO L93 Difference]: Finished difference Result 865 states and 968 transitions. [2024-10-13 11:57:02,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 11:57:02,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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 58 [2024-10-13 11:57:02,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:02,161 INFO L225 Difference]: With dead ends: 865 [2024-10-13 11:57:02,161 INFO L226 Difference]: Without dead ends: 865 [2024-10-13 11:57:02,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 11:57:02,162 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 1 mSDsluCounter, 1196 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:02,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1896 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-13 11:57:02,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-10-13 11:57:02,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-10-13 11:57:02,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 516 states have (on average 1.821705426356589) internal successors, (940), 858 states have internal predecessors, (940), 15 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 11:57:02,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 968 transitions. [2024-10-13 11:57:02,171 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 968 transitions. Word has length 58 [2024-10-13 11:57:02,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:02,171 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 968 transitions. [2024-10-13 11:57:02,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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) [2024-10-13 11:57:02,172 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 968 transitions. [2024-10-13 11:57:02,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-13 11:57:02,172 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:02,172 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, 1, 1, 1, 1] [2024-10-13 11:57:02,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2024-10-13 11:57:02,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/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 [2024-10-13 11:57:02,377 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:57:02,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:02,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1379583479, now seen corresponding path program 1 times [2024-10-13 11:57:02,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:02,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558903821] [2024-10-13 11:57:02,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:02,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-13 11:57:02,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:02,379 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/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) [2024-10-13 11:57:02,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-10-13 11:57:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:02,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 11:57:02,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:02,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:02,593 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 11:57:02,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:02,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558903821] [2024-10-13 11:57:02,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558903821] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 11:57:02,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 11:57:02,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 11:57:02,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915956515] [2024-10-13 11:57:02,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 11:57:02,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 11:57:02,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:02,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 11:57:02,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:57:02,594 INFO L87 Difference]: Start difference. First operand 865 states and 968 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-10-13 11:57:03,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:03,048 INFO L93 Difference]: Finished difference Result 867 states and 971 transitions. [2024-10-13 11:57:03,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 11:57:03,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 64 [2024-10-13 11:57:03,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:03,052 INFO L225 Difference]: With dead ends: 867 [2024-10-13 11:57:03,052 INFO L226 Difference]: Without dead ends: 867 [2024-10-13 11:57:03,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 11:57:03,053 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 0 mSDsluCounter, 1397 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2097 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:03,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2097 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 11:57:03,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2024-10-13 11:57:03,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 867. [2024-10-13 11:57:03,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 517 states have (on average 1.8220502901353965) internal successors, (942), 860 states have internal predecessors, (942), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 11:57:03,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 971 transitions. [2024-10-13 11:57:03,071 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 971 transitions. Word has length 64 [2024-10-13 11:57:03,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:03,071 INFO L471 AbstractCegarLoop]: Abstraction has 867 states and 971 transitions. [2024-10-13 11:57:03,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-10-13 11:57:03,072 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 971 transitions. [2024-10-13 11:57:03,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-13 11:57:03,072 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:03,072 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, 1, 1, 1, 1, 1] [2024-10-13 11:57:03,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-10-13 11:57:03,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/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 [2024-10-13 11:57:03,273 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:57:03,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:03,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1774966674, now seen corresponding path program 1 times [2024-10-13 11:57:03,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:03,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480375479] [2024-10-13 11:57:03,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 11:57:03,274 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 [2024-10-13 11:57:03,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:03,275 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/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) [2024-10-13 11:57:03,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (20)] Waiting until timeout for monitored process [2024-10-13 11:57:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 11:57:03,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 11:57:03,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:03,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:03,511 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:57:03,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:03,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:03,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480375479] [2024-10-13 11:57:03,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480375479] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:57:03,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:57:03,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-13 11:57:03,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643740302] [2024-10-13 11:57:03,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:57:03,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 11:57:03,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:03,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 11:57:03,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-13 11:57:03,556 INFO L87 Difference]: Start difference. First operand 867 states and 971 transitions. Second operand has 8 states, 6 states have (on average 11.0) internal successors, (66), 8 states have internal predecessors, (66), 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) [2024-10-13 11:57:04,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:04,524 INFO L93 Difference]: Finished difference Result 876 states and 985 transitions. [2024-10-13 11:57:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 11:57:04,526 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 11.0) internal successors, (66), 8 states have internal predecessors, (66), 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 65 [2024-10-13 11:57:04,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:04,528 INFO L225 Difference]: With dead ends: 876 [2024-10-13 11:57:04,528 INFO L226 Difference]: Without dead ends: 876 [2024-10-13 11:57:04,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-10-13 11:57:04,529 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 4 mSDsluCounter, 4182 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:04,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4881 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-13 11:57:04,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2024-10-13 11:57:04,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 875. [2024-10-13 11:57:04,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 524 states have (on average 1.8225190839694656) internal successors, (955), 867 states have internal predecessors, (955), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 11:57:04,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 984 transitions. [2024-10-13 11:57:04,540 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 984 transitions. Word has length 65 [2024-10-13 11:57:04,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:04,540 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 984 transitions. [2024-10-13 11:57:04,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 11.0) internal successors, (66), 8 states have internal predecessors, (66), 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) [2024-10-13 11:57:04,540 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 984 transitions. [2024-10-13 11:57:04,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-13 11:57:04,541 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:04,541 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, 1, 1, 1, 1, 1] [2024-10-13 11:57:04,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 (20)] Ended with exit code 0 [2024-10-13 11:57:04,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/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 [2024-10-13 11:57:04,742 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:57:04,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:04,742 INFO L85 PathProgramCache]: Analyzing trace with hash 918541495, now seen corresponding path program 2 times [2024-10-13 11:57:04,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:04,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661130025] [2024-10-13 11:57:04,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 11:57:04,743 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 [2024-10-13 11:57:04,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:04,744 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/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) [2024-10-13 11:57:04,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (21)] Waiting until timeout for monitored process [2024-10-13 11:57:05,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 11:57:05,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:57:05,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 11:57:05,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:05,106 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:05,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:57:05,212 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:05,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:05,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661130025] [2024-10-13 11:57:05,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661130025] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:57:05,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:57:05,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-13 11:57:05,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795417333] [2024-10-13 11:57:05,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:57:05,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 11:57:05,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:05,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 11:57:05,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-13 11:57:05,213 INFO L87 Difference]: Start difference. First operand 875 states and 984 transitions. Second operand has 14 states, 12 states have (on average 6.0) internal successors, (72), 14 states have internal predecessors, (72), 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) [2024-10-13 11:57:06,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:06,464 INFO L93 Difference]: Finished difference Result 887 states and 1003 transitions. [2024-10-13 11:57:06,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 11:57:06,465 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.0) internal successors, (72), 14 states have internal predecessors, (72), 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 68 [2024-10-13 11:57:06,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:06,467 INFO L225 Difference]: With dead ends: 887 [2024-10-13 11:57:06,467 INFO L226 Difference]: Without dead ends: 885 [2024-10-13 11:57:06,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-13 11:57:06,468 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 7 mSDsluCounter, 4883 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5582 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:06,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5582 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 11:57:06,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2024-10-13 11:57:06,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 884. [2024-10-13 11:57:06,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 533 states have (on average 1.8142589118198875) internal successors, (967), 876 states have internal predecessors, (967), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 11:57:06,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 996 transitions. [2024-10-13 11:57:06,476 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 996 transitions. Word has length 68 [2024-10-13 11:57:06,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:06,476 INFO L471 AbstractCegarLoop]: Abstraction has 884 states and 996 transitions. [2024-10-13 11:57:06,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.0) internal successors, (72), 14 states have internal predecessors, (72), 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) [2024-10-13 11:57:06,477 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 996 transitions. [2024-10-13 11:57:06,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-13 11:57:06,477 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:06,477 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, 1, 1, 1, 1, 1] [2024-10-13 11:57:06,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 (21)] Ended with exit code 0 [2024-10-13 11:57:06,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/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 [2024-10-13 11:57:06,678 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:57:06,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:06,678 INFO L85 PathProgramCache]: Analyzing trace with hash 210261719, now seen corresponding path program 3 times [2024-10-13 11:57:06,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:06,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321248860] [2024-10-13 11:57:06,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 11:57:06,679 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 [2024-10-13 11:57:06,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:06,680 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/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) [2024-10-13 11:57:06,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (22)] Waiting until timeout for monitored process [2024-10-13 11:57:07,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-13 11:57:07,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:57:07,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-13 11:57:07,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:07,327 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:07,328 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:57:07,680 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:07,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:07,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321248860] [2024-10-13 11:57:07,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1321248860] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:57:07,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:57:07,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-13 11:57:07,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271680343] [2024-10-13 11:57:07,680 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:57:07,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-13 11:57:07,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:07,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-13 11:57:07,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-13 11:57:07,681 INFO L87 Difference]: Start difference. First operand 884 states and 996 transitions. Second operand has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 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) [2024-10-13 11:57:10,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:10,345 INFO L93 Difference]: Finished difference Result 905 states and 1032 transitions. [2024-10-13 11:57:10,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-13 11:57:10,345 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 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 74 [2024-10-13 11:57:10,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:10,348 INFO L225 Difference]: With dead ends: 905 [2024-10-13 11:57:10,348 INFO L226 Difference]: Without dead ends: 902 [2024-10-13 11:57:10,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-13 11:57:10,349 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 13 mSDsluCounter, 7676 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 8375 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:10,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 8375 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-13 11:57:10,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2024-10-13 11:57:10,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 902. [2024-10-13 11:57:10,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 551 states have (on average 1.7967332123411979) internal successors, (990), 894 states have internal predecessors, (990), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 11:57:10,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1019 transitions. [2024-10-13 11:57:10,357 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1019 transitions. Word has length 74 [2024-10-13 11:57:10,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:10,357 INFO L471 AbstractCegarLoop]: Abstraction has 902 states and 1019 transitions. [2024-10-13 11:57:10,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.5) internal successors, (84), 26 states have internal predecessors, (84), 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) [2024-10-13 11:57:10,357 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1019 transitions. [2024-10-13 11:57:10,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-13 11:57:10,358 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:10,358 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, 1, 1, 1, 1, 1] [2024-10-13 11:57:10,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 (22)] Forceful destruction successful, exit code 0 [2024-10-13 11:57:10,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/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 [2024-10-13 11:57:10,558 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:57:10,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:10,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1230695657, now seen corresponding path program 4 times [2024-10-13 11:57:10,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:10,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990426494] [2024-10-13 11:57:10,559 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 11:57:10,559 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 [2024-10-13 11:57:10,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:10,560 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/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) [2024-10-13 11:57:10,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (23)] Waiting until timeout for monitored process [2024-10-13 11:57:10,959 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 11:57:10,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:57:10,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-13 11:57:10,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:11,218 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:57:12,106 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 11:57:12,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:12,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990426494] [2024-10-13 11:57:12,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990426494] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 11:57:12,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 11:57:12,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-13 11:57:12,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632878929] [2024-10-13 11:57:12,106 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 11:57:12,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-13 11:57:12,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-13 11:57:12,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-13 11:57:12,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-13 11:57:12,108 INFO L87 Difference]: Start difference. First operand 902 states and 1019 transitions. Second operand has 50 states, 48 states have (on average 2.25) internal successors, (108), 50 states have internal predecessors, (108), 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) [2024-10-13 11:57:18,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 11:57:18,706 INFO L93 Difference]: Finished difference Result 939 states and 1088 transitions. [2024-10-13 11:57:18,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-13 11:57:18,707 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.25) internal successors, (108), 50 states have internal predecessors, (108), 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 86 [2024-10-13 11:57:18,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 11:57:18,709 INFO L225 Difference]: With dead ends: 939 [2024-10-13 11:57:18,710 INFO L226 Difference]: Without dead ends: 937 [2024-10-13 11:57:18,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-13 11:57:18,711 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 25 mSDsluCounter, 16054 mSDsCounter, 0 mSdLazyCounter, 4067 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 16753 SdHoareTripleChecker+Invalid, 4115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 4067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-10-13 11:57:18,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 16753 Invalid, 4115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 4067 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-10-13 11:57:18,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-10-13 11:57:18,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 936. [2024-10-13 11:57:18,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 585 states have (on average 1.7709401709401709) internal successors, (1036), 928 states have internal predecessors, (1036), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-13 11:57:18,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1065 transitions. [2024-10-13 11:57:18,720 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1065 transitions. Word has length 86 [2024-10-13 11:57:18,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 11:57:18,720 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1065 transitions. [2024-10-13 11:57:18,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.25) internal successors, (108), 50 states have internal predecessors, (108), 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) [2024-10-13 11:57:18,721 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1065 transitions. [2024-10-13 11:57:18,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-13 11:57:18,721 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 11:57:18,721 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, 1, 1, 1, 1, 1] [2024-10-13 11:57:18,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 (23)] Forceful destruction successful, exit code 0 [2024-10-13 11:57:18,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/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 [2024-10-13 11:57:18,922 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2024-10-13 11:57:18,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 11:57:18,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1059403721, now seen corresponding path program 5 times [2024-10-13 11:57:18,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-13 11:57:18,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63111025] [2024-10-13 11:57:18,923 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 11:57:18,923 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 [2024-10-13 11:57:18,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-13 11:57:18,924 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/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) [2024-10-13 11:57:18,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (24)] Waiting until timeout for monitored process [2024-10-13 11:57:19,932 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-13 11:57:19,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 11:57:19,952 INFO L255 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-10-13 11:57:19,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 11:57:19,961 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 [2024-10-13 11:57:20,024 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-10-13 11:57:20,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-10-13 11:57:20,043 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 [2024-10-13 11:57:20,090 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 24 treesize of output 12 [2024-10-13 11:57:20,768 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-13 11:57:20,768 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 44 treesize of output 43 [2024-10-13 11:57:20,797 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 33 treesize of output 15 [2024-10-13 11:57:20,817 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-10-13 11:57:20,817 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 11:57:21,038 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2025 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#0.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2025) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-10-13 11:57:21,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-13 11:57:21,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63111025] [2024-10-13 11:57:21,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63111025] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 11:57:21,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2102048955] [2024-10-13 11:57:21,040 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 11:57:21,040 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-13 11:57:21,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-13 11:57:21,042 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-13 11:57:21,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process