./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.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 f0b44034f537cfca2c2eab71fbff4de4b57572a56ff00cd4bbb31f940e955385 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 20:59:00,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 20:59:00,088 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 20:59:00,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 20:59:00,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 20:59:00,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 20:59:00,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 20:59:00,133 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 20:59:00,134 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 20:59:00,135 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 20:59:00,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 20:59:00,135 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 20:59:00,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 20:59:00,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 20:59:00,138 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 20:59:00,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 20:59:00,139 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 20:59:00,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 20:59:00,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 20:59:00,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 20:59:00,140 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 20:59:00,146 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 20:59:00,146 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 20:59:00,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 20:59:00,147 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 20:59:00,147 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 20:59:00,147 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 20:59:00,147 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 20:59:00,148 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 20:59:00,148 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 20:59:00,148 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 20:59:00,148 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 20:59:00,148 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 20:59:00,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 20:59:00,149 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 20:59:00,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 20:59:00,149 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 20:59:00,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 20:59:00,150 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 20:59:00,150 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 20:59:00,150 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 20:59:00,151 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 20:59:00,151 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0b44034f537cfca2c2eab71fbff4de4b57572a56ff00cd4bbb31f940e955385 [2024-11-22 20:59:00,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 20:59:00,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 20:59:00,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 20:59:00,404 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 20:59:00,404 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 20:59:00,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i [2024-11-22 20:59:01,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 20:59:02,179 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 20:59:02,181 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i [2024-11-22 20:59:02,201 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a8047e7/568abac8181b4e23ae4e3c5c0323085d/FLAGe37244d73 [2024-11-22 20:59:02,217 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a8047e7/568abac8181b4e23ae4e3c5c0323085d [2024-11-22 20:59:02,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 20:59:02,223 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 20:59:02,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 20:59:02,226 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 20:59:02,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 20:59:02,232 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:59:02" (1/1) ... [2024-11-22 20:59:02,233 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190c9a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:02, skipping insertion in model container [2024-11-22 20:59:02,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:59:02" (1/1) ... [2024-11-22 20:59:02,285 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 20:59:02,742 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:02,773 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:02,778 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:02,784 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:02,795 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:02,812 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:02,813 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:02,816 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:02,818 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:02,820 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:02,820 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:02,825 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:02,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 20:59:02,852 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) [2024-11-22 20:59:02,853 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@20c51e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:02, skipping insertion in model container [2024-11-22 20:59:02,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 20:59:02,853 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-22 20:59:02,855 INFO L158 Benchmark]: Toolchain (without parser) took 631.71ms. Allocated memory is still 151.0MB. Free memory was 94.5MB in the beginning and 108.2MB in the end (delta: -13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 20:59:02,856 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory was 50.4MB in the beginning and 50.3MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 20:59:02,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 627.72ms. Allocated memory is still 151.0MB. Free memory was 94.1MB in the beginning and 108.2MB in the end (delta: -14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 20:59:02,858 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory was 50.4MB in the beginning and 50.3MB in the end (delta: 151.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 627.72ms. Allocated memory is still 151.0MB. Free memory was 94.1MB in the beginning and 108.2MB in the end (delta: -14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 764]: 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 ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.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 f0b44034f537cfca2c2eab71fbff4de4b57572a56ff00cd4bbb31f940e955385 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 20:59:04,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 20:59:04,917 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-22 20:59:04,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 20:59:04,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 20:59:04,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 20:59:04,969 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 20:59:04,969 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 20:59:04,970 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 20:59:04,971 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 20:59:04,972 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 20:59:04,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 20:59:04,973 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 20:59:04,973 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 20:59:04,973 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 20:59:04,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 20:59:04,975 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 20:59:04,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 20:59:04,976 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 20:59:04,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 20:59:04,976 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 20:59:04,977 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 20:59:04,977 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 20:59:04,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 20:59:04,978 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 20:59:04,978 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-22 20:59:04,978 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 20:59:04,979 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-22 20:59:04,979 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 20:59:04,979 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 20:59:04,979 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 20:59:04,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 20:59:04,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 20:59:04,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 20:59:04,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 20:59:04,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 20:59:04,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 20:59:04,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 20:59:04,981 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-22 20:59:04,982 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-22 20:59:04,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 20:59:04,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 20:59:04,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 20:59:04,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 20:59:04,983 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0b44034f537cfca2c2eab71fbff4de4b57572a56ff00cd4bbb31f940e955385 [2024-11-22 20:59:05,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 20:59:05,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 20:59:05,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 20:59:05,346 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 20:59:05,347 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 20:59:05,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i [2024-11-22 20:59:06,918 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 20:59:07,202 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 20:59:07,203 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i [2024-11-22 20:59:07,225 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f72b47528/fc5a97597ea840929bdfb8175d7b3b10/FLAG4a0645f85 [2024-11-22 20:59:07,498 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f72b47528/fc5a97597ea840929bdfb8175d7b3b10 [2024-11-22 20:59:07,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 20:59:07,501 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 20:59:07,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 20:59:07,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 20:59:07,509 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 20:59:07,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:59:07" (1/1) ... [2024-11-22 20:59:07,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6299ada8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:07, skipping insertion in model container [2024-11-22 20:59:07,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:59:07" (1/1) ... [2024-11-22 20:59:07,574 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 20:59:07,991 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,031 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,038 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,042 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,048 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,062 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,066 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,068 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,070 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,071 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,071 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,075 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 20:59:08,100 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-22 20:59:08,111 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 20:59:08,145 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,172 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,174 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,176 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,181 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,188 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,189 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,190 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,191 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,192 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,192 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,195 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 20:59:08,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 20:59:08,207 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 20:59:08,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 20:59:08,354 INFO L204 MainTranslator]: Completed translation [2024-11-22 20:59:08,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:08 WrapperNode [2024-11-22 20:59:08,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 20:59:08,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 20:59:08,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 20:59:08,357 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 20:59:08,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:08" (1/1) ... [2024-11-22 20:59:08,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:08" (1/1) ... [2024-11-22 20:59:08,460 INFO L138 Inliner]: procedures = 179, calls = 231, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 807 [2024-11-22 20:59:08,464 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 20:59:08,465 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 20:59:08,465 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 20:59:08,465 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 20:59:08,479 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:08" (1/1) ... [2024-11-22 20:59:08,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:08" (1/1) ... [2024-11-22 20:59:08,491 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:08" (1/1) ... [2024-11-22 20:59:08,564 INFO L175 MemorySlicer]: Split 206 memory accesses to 2 slices as follows [2, 204]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 50 writes are split as follows [0, 50]. [2024-11-22 20:59:08,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:08" (1/1) ... [2024-11-22 20:59:08,565 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:08" (1/1) ... [2024-11-22 20:59:08,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:08" (1/1) ... [2024-11-22 20:59:08,620 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:08" (1/1) ... [2024-11-22 20:59:08,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:08" (1/1) ... [2024-11-22 20:59:08,630 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:08" (1/1) ... [2024-11-22 20:59:08,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 20:59:08,645 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 20:59:08,646 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 20:59:08,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 20:59:08,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:08" (1/1) ... [2024-11-22 20:59:08,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 20:59:08,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 20:59:08,683 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) [2024-11-22 20:59:08,688 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 [2024-11-22 20:59:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-22 20:59:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-22 20:59:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-22 20:59:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-22 20:59:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 20:59:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 20:59:08,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-22 20:59:08,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-22 20:59:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-22 20:59:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-22 20:59:08,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 20:59:08,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 20:59:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 20:59:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 20:59:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 20:59:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 20:59:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 20:59:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-22 20:59:08,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-22 20:59:08,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-22 20:59:08,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-22 20:59:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 20:59:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 20:59:08,951 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 20:59:08,953 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 20:59:08,957 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-22 20:59:09,013 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-22 20:59:11,595 INFO L? ?]: Removed 907 outVars from TransFormulas that were not future-live. [2024-11-22 20:59:11,595 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 20:59:11,633 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 20:59:11,636 INFO L316 CfgBuilder]: Removed 40 assume(true) statements. [2024-11-22 20:59:11,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:59:11 BoogieIcfgContainer [2024-11-22 20:59:11,637 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 20:59:11,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 20:59:11,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 20:59:11,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 20:59:11,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:59:07" (1/3) ... [2024-11-22 20:59:11,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe64fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:59:11, skipping insertion in model container [2024-11-22 20:59:11,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:59:08" (2/3) ... [2024-11-22 20:59:11,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe64fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:59:11, skipping insertion in model container [2024-11-22 20:59:11,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:59:11" (3/3) ... [2024-11-22 20:59:11,646 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test1-2.i [2024-11-22 20:59:11,662 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 20:59:11,662 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 425 error locations. [2024-11-22 20:59:11,740 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 20:59:11,748 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;@1ee5022b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 20:59:11,749 INFO L334 AbstractCegarLoop]: Starting to check reachability of 425 error locations. [2024-11-22 20:59:11,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 858 states, 420 states have (on average 2.2261904761904763) internal successors, (935), 852 states have internal predecessors, (935), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 20:59:11,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-22 20:59:11,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:11,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-22 20:59:11,763 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:11,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:11,769 INFO L85 PathProgramCache]: Analyzing trace with hash 45876316, now seen corresponding path program 1 times [2024-11-22 20:59:11,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:11,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449057691] [2024-11-22 20:59:11,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:11,782 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 [2024-11-22 20:59:11,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:11,785 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) [2024-11-22 20:59:11,787 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 [2024-11-22 20:59:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:11,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 20:59:11,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:11,946 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 [2024-11-22 20:59:11,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:11,968 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:59:11,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:11,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449057691] [2024-11-22 20:59:11,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449057691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:11,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:11,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 20:59:11,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123470918] [2024-11-22 20:59:11,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:11,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:59:11,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:12,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:59:12,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:12,016 INFO L87 Difference]: Start difference. First operand has 858 states, 420 states have (on average 2.2261904761904763) internal successors, (935), 852 states have internal predecessors, (935), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:13,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:13,360 INFO L93 Difference]: Finished difference Result 801 states and 859 transitions. [2024-11-22 20:59:13,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:59:13,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-22 20:59:13,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:13,387 INFO L225 Difference]: With dead ends: 801 [2024-11-22 20:59:13,388 INFO L226 Difference]: Without dead ends: 799 [2024-11-22 20:59:13,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:13,392 INFO L432 NwaCegarLoop]: 547 mSDtfsCounter, 535 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:13,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 663 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 20:59:13,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-22 20:59:13,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 797. [2024-11-22 20:59:13,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 414 states have (on average 2.0) internal successors, (828), 791 states have internal predecessors, (828), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 20:59:13,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 854 transitions. [2024-11-22 20:59:13,476 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 854 transitions. Word has length 5 [2024-11-22 20:59:13,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:13,476 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 854 transitions. [2024-11-22 20:59:13,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:13,477 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 854 transitions. [2024-11-22 20:59:13,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-22 20:59:13,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:13,477 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-22 20:59:13,481 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 [2024-11-22 20:59:13,680 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 [2024-11-22 20:59:13,680 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:13,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:13,681 INFO L85 PathProgramCache]: Analyzing trace with hash 45876317, now seen corresponding path program 1 times [2024-11-22 20:59:13,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:13,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893173812] [2024-11-22 20:59:13,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:13,682 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 [2024-11-22 20:59:13,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:13,683 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) [2024-11-22 20:59:13,684 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 [2024-11-22 20:59:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:13,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 20:59:13,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:13,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 20:59:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:13,796 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:59:13,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:13,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893173812] [2024-11-22 20:59:13,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893173812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:13,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:13,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 20:59:13,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484357080] [2024-11-22 20:59:13,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:13,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:59:13,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:13,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:59:13,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:13,800 INFO L87 Difference]: Start difference. First operand 797 states and 854 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:14,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:14,923 INFO L93 Difference]: Finished difference Result 872 states and 933 transitions. [2024-11-22 20:59:14,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:59:14,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-22 20:59:14,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:14,927 INFO L225 Difference]: With dead ends: 872 [2024-11-22 20:59:14,927 INFO L226 Difference]: Without dead ends: 872 [2024-11-22 20:59:14,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:14,928 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 263 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:14,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 1050 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 20:59:14,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states. [2024-11-22 20:59:14,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 824. [2024-11-22 20:59:14,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 451 states have (on average 1.9778270509977827) internal successors, (892), 818 states have internal predecessors, (892), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 20:59:14,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 918 transitions. [2024-11-22 20:59:14,956 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 918 transitions. Word has length 5 [2024-11-22 20:59:14,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:14,957 INFO L471 AbstractCegarLoop]: Abstraction has 824 states and 918 transitions. [2024-11-22 20:59:14,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:14,957 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 918 transitions. [2024-11-22 20:59:14,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-22 20:59:14,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:14,958 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-22 20:59:14,961 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 [2024-11-22 20:59:15,160 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 [2024-11-22 20:59:15,161 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr312REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:15,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:15,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1422972308, now seen corresponding path program 1 times [2024-11-22 20:59:15,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:15,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553636961] [2024-11-22 20:59:15,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:15,163 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 [2024-11-22 20:59:15,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:15,164 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) [2024-11-22 20:59:15,192 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 [2024-11-22 20:59:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:15,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 20:59:15,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:15,288 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:59:15,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:15,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553636961] [2024-11-22 20:59:15,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553636961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:15,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:15,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:59:15,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453991368] [2024-11-22 20:59:15,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:15,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:59:15,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:15,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:59:15,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:15,291 INFO L87 Difference]: Start difference. First operand 824 states and 918 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:15,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:15,373 INFO L93 Difference]: Finished difference Result 1397 states and 1554 transitions. [2024-11-22 20:59:15,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:59:15,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-22 20:59:15,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:15,382 INFO L225 Difference]: With dead ends: 1397 [2024-11-22 20:59:15,383 INFO L226 Difference]: Without dead ends: 1397 [2024-11-22 20:59:15,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:15,384 INFO L432 NwaCegarLoop]: 1055 mSDtfsCounter, 555 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:15,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1893 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 20:59:15,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1397 states. [2024-11-22 20:59:15,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1397 to 825. [2024-11-22 20:59:15,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 452 states have (on average 1.9756637168141593) internal successors, (893), 819 states have internal predecessors, (893), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 20:59:15,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 919 transitions. [2024-11-22 20:59:15,409 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 919 transitions. Word has length 6 [2024-11-22 20:59:15,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:15,409 INFO L471 AbstractCegarLoop]: Abstraction has 825 states and 919 transitions. [2024-11-22 20:59:15,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:15,409 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 919 transitions. [2024-11-22 20:59:15,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-22 20:59:15,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:15,410 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:59:15,414 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 [2024-11-22 20:59:15,610 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 [2024-11-22 20:59:15,611 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:15,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:15,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1344610650, now seen corresponding path program 1 times [2024-11-22 20:59:15,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:15,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978859896] [2024-11-22 20:59:15,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:15,613 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 [2024-11-22 20:59:15,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:15,616 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) [2024-11-22 20:59:15,619 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 [2024-11-22 20:59:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:15,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 20:59:15,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:15,760 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:59:15,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:15,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978859896] [2024-11-22 20:59:15,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978859896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:15,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:15,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:59:15,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113797201] [2024-11-22 20:59:15,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:15,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:59:15,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:15,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:59:15,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:15,766 INFO L87 Difference]: Start difference. First operand 825 states and 919 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:15,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:15,798 INFO L93 Difference]: Finished difference Result 783 states and 876 transitions. [2024-11-22 20:59:15,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:59:15,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-22 20:59:15,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:15,804 INFO L225 Difference]: With dead ends: 783 [2024-11-22 20:59:15,804 INFO L226 Difference]: Without dead ends: 783 [2024-11-22 20:59:15,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:15,806 INFO L432 NwaCegarLoop]: 789 mSDtfsCounter, 71 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:15,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1515 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 20:59:15,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2024-11-22 20:59:15,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 783. [2024-11-22 20:59:15,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 434 states have (on average 1.9585253456221199) internal successors, (850), 777 states have internal predecessors, (850), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 20:59:15,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 876 transitions. [2024-11-22 20:59:15,827 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 876 transitions. Word has length 11 [2024-11-22 20:59:15,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:15,828 INFO L471 AbstractCegarLoop]: Abstraction has 783 states and 876 transitions. [2024-11-22 20:59:15,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:15,828 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 876 transitions. [2024-11-22 20:59:15,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-22 20:59:15,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:15,829 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:59:15,836 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 (5)] Forceful destruction successful, exit code 0 [2024-11-22 20:59:16,034 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 [2024-11-22 20:59:16,035 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:16,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:16,036 INFO L85 PathProgramCache]: Analyzing trace with hash 614317568, now seen corresponding path program 1 times [2024-11-22 20:59:16,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:16,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114453861] [2024-11-22 20:59:16,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:16,036 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 [2024-11-22 20:59:16,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:16,039 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) [2024-11-22 20:59:16,040 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 [2024-11-22 20:59:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:16,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 20:59:16,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:16,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:16,196 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:59:16,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:16,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114453861] [2024-11-22 20:59:16,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [114453861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:16,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:16,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:59:16,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545821383] [2024-11-22 20:59:16,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:16,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:59:16,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:16,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:59:16,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:59:16,198 INFO L87 Difference]: Start difference. First operand 783 states and 876 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) [2024-11-22 20:59:16,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:16,275 INFO L93 Difference]: Finished difference Result 761 states and 847 transitions. [2024-11-22 20:59:16,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 20:59:16,276 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 [2024-11-22 20:59:16,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:16,278 INFO L225 Difference]: With dead ends: 761 [2024-11-22 20:59:16,278 INFO L226 Difference]: Without dead ends: 761 [2024-11-22 20:59:16,279 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 [2024-11-22 20:59:16,279 INFO L432 NwaCegarLoop]: 744 mSDtfsCounter, 48 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:16,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 2206 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 20:59:16,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-22 20:59:16,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 761. [2024-11-22 20:59:16,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 426 states have (on average 1.9272300469483568) internal successors, (821), 755 states have internal predecessors, (821), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 20:59:16,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 847 transitions. [2024-11-22 20:59:16,294 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 847 transitions. Word has length 13 [2024-11-22 20:59:16,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:16,294 INFO L471 AbstractCegarLoop]: Abstraction has 761 states and 847 transitions. [2024-11-22 20:59:16,294 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) [2024-11-22 20:59:16,295 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 847 transitions. [2024-11-22 20:59:16,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-22 20:59:16,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:16,295 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] [2024-11-22 20:59:16,301 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 [2024-11-22 20:59:16,496 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 [2024-11-22 20:59:16,496 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:16,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:16,497 INFO L85 PathProgramCache]: Analyzing trace with hash -957630610, now seen corresponding path program 1 times [2024-11-22 20:59:16,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:16,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240894794] [2024-11-22 20:59:16,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:16,498 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 [2024-11-22 20:59:16,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:16,501 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) [2024-11-22 20:59:16,502 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 [2024-11-22 20:59:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:16,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 20:59:16,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:16,629 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 [2024-11-22 20:59:16,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:16,706 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:59:16,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:16,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1240894794] [2024-11-22 20:59:16,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1240894794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:16,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:16,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:59:16,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947530192] [2024-11-22 20:59:16,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:16,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:59:16,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:16,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:59:16,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:59:16,707 INFO L87 Difference]: Start difference. First operand 761 states and 847 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:18,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:18,111 INFO L93 Difference]: Finished difference Result 761 states and 847 transitions. [2024-11-22 20:59:18,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 20:59:18,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-22 20:59:18,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:18,115 INFO L225 Difference]: With dead ends: 761 [2024-11-22 20:59:18,115 INFO L226 Difference]: Without dead ends: 761 [2024-11-22 20:59:18,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 20:59:18,116 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 472 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:18,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 944 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 20:59:18,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-22 20:59:18,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 757. [2024-11-22 20:59:18,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 426 states have (on average 1.9178403755868545) internal successors, (817), 751 states have internal predecessors, (817), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 20:59:18,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 843 transitions. [2024-11-22 20:59:18,129 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 843 transitions. Word has length 27 [2024-11-22 20:59:18,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:18,129 INFO L471 AbstractCegarLoop]: Abstraction has 757 states and 843 transitions. [2024-11-22 20:59:18,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:18,130 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 843 transitions. [2024-11-22 20:59:18,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-22 20:59:18,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:18,130 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] [2024-11-22 20:59:18,135 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 [2024-11-22 20:59:18,334 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 [2024-11-22 20:59:18,334 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:18,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:18,335 INFO L85 PathProgramCache]: Analyzing trace with hash -957630609, now seen corresponding path program 1 times [2024-11-22 20:59:18,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:18,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620052456] [2024-11-22 20:59:18,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:18,335 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 [2024-11-22 20:59:18,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:18,336 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) [2024-11-22 20:59:18,337 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 [2024-11-22 20:59:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:18,461 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 20:59:18,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:18,477 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 [2024-11-22 20:59:18,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:18,670 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:59:18,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:18,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620052456] [2024-11-22 20:59:18,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620052456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:18,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:18,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:59:18,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995083402] [2024-11-22 20:59:18,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:18,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:59:18,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:18,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:59:18,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:59:18,675 INFO L87 Difference]: Start difference. First operand 757 states and 843 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:20,189 INFO L93 Difference]: Finished difference Result 805 states and 858 transitions. [2024-11-22 20:59:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 20:59:20,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-22 20:59:20,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:20,193 INFO L225 Difference]: With dead ends: 805 [2024-11-22 20:59:20,193 INFO L226 Difference]: Without dead ends: 805 [2024-11-22 20:59:20,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 20:59:20,194 INFO L432 NwaCegarLoop]: 680 mSDtfsCounter, 196 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:20,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1371 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 20:59:20,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2024-11-22 20:59:20,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 753. [2024-11-22 20:59:20,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 426 states have (on average 1.908450704225352) internal successors, (813), 747 states have internal predecessors, (813), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 20:59:20,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 839 transitions. [2024-11-22 20:59:20,219 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 839 transitions. Word has length 27 [2024-11-22 20:59:20,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:20,220 INFO L471 AbstractCegarLoop]: Abstraction has 753 states and 839 transitions. [2024-11-22 20:59:20,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:20,220 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 839 transitions. [2024-11-22 20:59:20,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-22 20:59:20,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:20,222 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] [2024-11-22 20:59:20,227 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 [2024-11-22 20:59:20,426 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 [2024-11-22 20:59:20,426 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:20,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:20,427 INFO L85 PathProgramCache]: Analyzing trace with hash -3860248, now seen corresponding path program 1 times [2024-11-22 20:59:20,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:20,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360896072] [2024-11-22 20:59:20,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:20,428 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 [2024-11-22 20:59:20,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:20,431 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) [2024-11-22 20:59:20,432 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 [2024-11-22 20:59:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:20,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 20:59:20,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:20,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:20,639 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:59:20,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:20,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360896072] [2024-11-22 20:59:20,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360896072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:20,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:20,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:59:20,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273423928] [2024-11-22 20:59:20,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:20,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:59:20,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:20,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:59:20,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:59:20,642 INFO L87 Difference]: Start difference. First operand 753 states and 839 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:20,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:20,701 INFO L93 Difference]: Finished difference Result 747 states and 829 transitions. [2024-11-22 20:59:20,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 20:59:20,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-22 20:59:20,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:20,704 INFO L225 Difference]: With dead ends: 747 [2024-11-22 20:59:20,704 INFO L226 Difference]: Without dead ends: 747 [2024-11-22 20:59:20,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 20:59:20,705 INFO L432 NwaCegarLoop]: 738 mSDtfsCounter, 21 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:20,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2183 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 20:59:20,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-11-22 20:59:20,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 747. [2024-11-22 20:59:20,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 420 states have (on average 1.911904761904762) internal successors, (803), 741 states have internal predecessors, (803), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 20:59:20,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 829 transitions. [2024-11-22 20:59:20,718 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 829 transitions. Word has length 43 [2024-11-22 20:59:20,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:20,718 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 829 transitions. [2024-11-22 20:59:20,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:20,719 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 829 transitions. [2024-11-22 20:59:20,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-22 20:59:20,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:20,720 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] [2024-11-22 20:59:20,726 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 (9)] Forceful destruction successful, exit code 0 [2024-11-22 20:59:20,920 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 [2024-11-22 20:59:20,920 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:20,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:20,921 INFO L85 PathProgramCache]: Analyzing trace with hash 168131124, now seen corresponding path program 1 times [2024-11-22 20:59:20,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:20,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060463913] [2024-11-22 20:59:20,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:20,922 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 [2024-11-22 20:59:20,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:20,923 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) [2024-11-22 20:59:20,924 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 [2024-11-22 20:59:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:21,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 20:59:21,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:21,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:21,343 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:59:21,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:21,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060463913] [2024-11-22 20:59:21,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060463913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:21,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:21,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:59:21,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955808065] [2024-11-22 20:59:21,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:21,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 20:59:21,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:21,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 20:59:21,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:21,346 INFO L87 Difference]: Start difference. First operand 747 states and 829 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:21,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:21,476 INFO L93 Difference]: Finished difference Result 965 states and 1076 transitions. [2024-11-22 20:59:21,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 20:59:21,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-22 20:59:21,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:21,483 INFO L225 Difference]: With dead ends: 965 [2024-11-22 20:59:21,483 INFO L226 Difference]: Without dead ends: 965 [2024-11-22 20:59:21,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 20:59:21,485 INFO L432 NwaCegarLoop]: 825 mSDtfsCounter, 178 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:21,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1512 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 20:59:21,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2024-11-22 20:59:21,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 794. [2024-11-22 20:59:21,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 467 states have (on average 1.8201284796573876) internal successors, (850), 788 states have internal predecessors, (850), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 20:59:21,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 876 transitions. [2024-11-22 20:59:21,503 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 876 transitions. Word has length 51 [2024-11-22 20:59:21,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:21,504 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 876 transitions. [2024-11-22 20:59:21,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:21,504 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 876 transitions. [2024-11-22 20:59:21,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-22 20:59:21,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:21,505 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] [2024-11-22 20:59:21,513 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 (10)] Ended with exit code 0 [2024-11-22 20:59:21,709 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 [2024-11-22 20:59:21,710 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:21,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:21,710 INFO L85 PathProgramCache]: Analyzing trace with hash 754975115, now seen corresponding path program 1 times [2024-11-22 20:59:21,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:21,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64214071] [2024-11-22 20:59:21,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:21,711 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 [2024-11-22 20:59:21,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:21,713 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) [2024-11-22 20:59:21,714 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 [2024-11-22 20:59:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:21,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 20:59:21,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:21,959 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 [2024-11-22 20:59:21,967 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 [2024-11-22 20:59:22,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 20:59:22,418 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 [2024-11-22 20:59:22,438 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-22 20:59:22,438 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 [2024-11-22 20:59:22,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:22,457 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:59:22,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:22,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64214071] [2024-11-22 20:59:22,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [64214071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:22,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:22,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 20:59:22,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147158885] [2024-11-22 20:59:22,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:22,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:59:22,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:22,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:59:22,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:59:22,460 INFO L87 Difference]: Start difference. First operand 794 states and 876 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) [2024-11-22 20:59:23,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:23,568 INFO L93 Difference]: Finished difference Result 756 states and 838 transitions. [2024-11-22 20:59:23,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 20:59:23,569 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 [2024-11-22 20:59:23,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:23,572 INFO L225 Difference]: With dead ends: 756 [2024-11-22 20:59:23,572 INFO L226 Difference]: Without dead ends: 756 [2024-11-22 20:59:23,573 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 [2024-11-22 20:59:23,573 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 374 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:23,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 682 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 20:59:23,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-11-22 20:59:23,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 719. [2024-11-22 20:59:23,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 430 states have (on average 1.716279069767442) internal successors, (738), 713 states have internal predecessors, (738), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 20:59:23,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 764 transitions. [2024-11-22 20:59:23,596 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 764 transitions. Word has length 54 [2024-11-22 20:59:23,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:23,596 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 764 transitions. [2024-11-22 20:59:23,597 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) [2024-11-22 20:59:23,597 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 764 transitions. [2024-11-22 20:59:23,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-22 20:59:23,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:23,598 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:59:23,608 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 [2024-11-22 20:59:23,799 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 [2024-11-22 20:59:23,799 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:23,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:23,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1572100217, now seen corresponding path program 1 times [2024-11-22 20:59:23,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:23,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665733256] [2024-11-22 20:59:23,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:23,801 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 [2024-11-22 20:59:23,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:23,804 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) [2024-11-22 20:59:23,805 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 [2024-11-22 20:59:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:24,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 20:59:24,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:24,079 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 [2024-11-22 20:59:24,098 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 [2024-11-22 20:59:24,120 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 [2024-11-22 20:59:24,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:24,129 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:59:24,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:24,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665733256] [2024-11-22 20:59:24,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665733256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:24,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:24,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:59:24,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799188254] [2024-11-22 20:59:24,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:24,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 20:59:24,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:24,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 20:59:24,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 20:59:24,130 INFO L87 Difference]: Start difference. First operand 719 states and 764 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:25,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:25,432 INFO L93 Difference]: Finished difference Result 718 states and 763 transitions. [2024-11-22 20:59:25,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 20:59:25,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-22 20:59:25,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:25,435 INFO L225 Difference]: With dead ends: 718 [2024-11-22 20:59:25,435 INFO L226 Difference]: Without dead ends: 718 [2024-11-22 20:59:25,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 20:59:25,436 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 2 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:25,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1842 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 20:59:25,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-22 20:59:25,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 718. [2024-11-22 20:59:25,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 430 states have (on average 1.713953488372093) internal successors, (737), 712 states have internal predecessors, (737), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 20:59:25,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 763 transitions. [2024-11-22 20:59:25,446 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 763 transitions. Word has length 59 [2024-11-22 20:59:25,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:25,447 INFO L471 AbstractCegarLoop]: Abstraction has 718 states and 763 transitions. [2024-11-22 20:59:25,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:25,447 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 763 transitions. [2024-11-22 20:59:25,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-22 20:59:25,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:25,448 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 20:59:25,455 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 (12)] Ended with exit code 0 [2024-11-22 20:59:25,648 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 [2024-11-22 20:59:25,649 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:25,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:25,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1572100216, now seen corresponding path program 1 times [2024-11-22 20:59:25,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:25,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359235096] [2024-11-22 20:59:25,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:25,650 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 [2024-11-22 20:59:25,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:25,651 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) [2024-11-22 20:59:25,652 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 [2024-11-22 20:59:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:25,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 20:59:25,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:25,839 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 [2024-11-22 20:59:25,859 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 [2024-11-22 20:59:25,869 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 [2024-11-22 20:59:25,912 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 [2024-11-22 20:59:25,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:25,931 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:59:25,931 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:25,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359235096] [2024-11-22 20:59:25,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359235096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:25,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:25,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:59:25,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837810955] [2024-11-22 20:59:25,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:25,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 20:59:25,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:25,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 20:59:25,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 20:59:25,932 INFO L87 Difference]: Start difference. First operand 718 states and 763 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:27,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:27,453 INFO L93 Difference]: Finished difference Result 717 states and 762 transitions. [2024-11-22 20:59:27,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 20:59:27,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-22 20:59:27,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:27,456 INFO L225 Difference]: With dead ends: 717 [2024-11-22 20:59:27,456 INFO L226 Difference]: Without dead ends: 717 [2024-11-22 20:59:27,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 20:59:27,456 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 1 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:27,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1865 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 20:59:27,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2024-11-22 20:59:27,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2024-11-22 20:59:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 429 states have (on average 1.7156177156177157) internal successors, (736), 711 states have internal predecessors, (736), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 20:59:27,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 762 transitions. [2024-11-22 20:59:27,468 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 762 transitions. Word has length 59 [2024-11-22 20:59:27,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:27,468 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 762 transitions. [2024-11-22 20:59:27,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 20:59:27,468 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 762 transitions. [2024-11-22 20:59:27,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 20:59:27,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:27,470 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, 1, 1] [2024-11-22 20:59:27,477 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 [2024-11-22 20:59:27,671 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 [2024-11-22 20:59:27,671 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:27,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:27,671 INFO L85 PathProgramCache]: Analyzing trace with hash 216241902, now seen corresponding path program 1 times [2024-11-22 20:59:27,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:27,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983414404] [2024-11-22 20:59:27,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:27,672 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 [2024-11-22 20:59:27,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:27,673 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) [2024-11-22 20:59:27,674 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 [2024-11-22 20:59:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:27,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 20:59:27,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:27,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:27,931 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 20:59:27,932 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:27,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983414404] [2024-11-22 20:59:27,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983414404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 20:59:27,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 20:59:27,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 20:59:27,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946587429] [2024-11-22 20:59:27,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 20:59:27,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 20:59:27,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:27,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 20:59:27,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:59:27,934 INFO L87 Difference]: Start difference. First operand 717 states and 762 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-22 20:59:27,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:27,979 INFO L93 Difference]: Finished difference Result 720 states and 766 transitions. [2024-11-22 20:59:27,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 20:59:27,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 67 [2024-11-22 20:59:27,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:27,983 INFO L225 Difference]: With dead ends: 720 [2024-11-22 20:59:27,986 INFO L226 Difference]: Without dead ends: 720 [2024-11-22 20:59:27,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 20:59:27,987 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 0 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:27,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2128 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 20:59:27,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-22 20:59:27,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2024-11-22 20:59:28,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 431 states have (on average 1.71461716937355) internal successors, (739), 714 states have internal predecessors, (739), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-22 20:59:28,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 766 transitions. [2024-11-22 20:59:28,002 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 766 transitions. Word has length 67 [2024-11-22 20:59:28,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:28,003 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 766 transitions. [2024-11-22 20:59:28,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-22 20:59:28,003 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 766 transitions. [2024-11-22 20:59:28,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 20:59:28,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:28,004 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, 1, 1, 1] [2024-11-22 20:59:28,014 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 (14)] Forceful destruction successful, exit code 0 [2024-11-22 20:59:28,204 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 [2024-11-22 20:59:28,205 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:28,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:28,205 INFO L85 PathProgramCache]: Analyzing trace with hash -572148029, now seen corresponding path program 1 times [2024-11-22 20:59:28,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:28,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914185646] [2024-11-22 20:59:28,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 20:59:28,206 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 [2024-11-22 20:59:28,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:28,208 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) [2024-11-22 20:59:28,209 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 [2024-11-22 20:59:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 20:59:28,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 20:59:28,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:28,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:28,457 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 20:59:28,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:28,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:28,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914185646] [2024-11-22 20:59:28,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914185646] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 20:59:28,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 20:59:28,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-22 20:59:28,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574187373] [2024-11-22 20:59:28,526 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 20:59:28,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 20:59:28,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:28,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 20:59:28,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 20:59:28,532 INFO L87 Difference]: Start difference. First operand 720 states and 766 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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) [2024-11-22 20:59:28,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:28,670 INFO L93 Difference]: Finished difference Result 732 states and 783 transitions. [2024-11-22 20:59:28,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 20:59:28,671 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 [2024-11-22 20:59:28,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:28,674 INFO L225 Difference]: With dead ends: 732 [2024-11-22 20:59:28,674 INFO L226 Difference]: Without dead ends: 732 [2024-11-22 20:59:28,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-22 20:59:28,675 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 5 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:28,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2835 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 20:59:28,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-11-22 20:59:28,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 730. [2024-11-22 20:59:28,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 440 states have (on average 1.7136363636363636) internal successors, (754), 723 states have internal predecessors, (754), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-22 20:59:28,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 781 transitions. [2024-11-22 20:59:28,687 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 781 transitions. Word has length 68 [2024-11-22 20:59:28,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:28,687 INFO L471 AbstractCegarLoop]: Abstraction has 730 states and 781 transitions. [2024-11-22 20:59:28,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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) [2024-11-22 20:59:28,687 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 781 transitions. [2024-11-22 20:59:28,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 20:59:28,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:28,688 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, 1, 1, 1] [2024-11-22 20:59:28,697 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 (15)] Ended with exit code 0 [2024-11-22 20:59:28,888 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 [2024-11-22 20:59:28,889 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:28,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:28,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1280795694, now seen corresponding path program 2 times [2024-11-22 20:59:28,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:28,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301302613] [2024-11-22 20:59:28,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 20:59:28,891 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 [2024-11-22 20:59:28,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:28,894 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) [2024-11-22 20:59:28,895 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 [2024-11-22 20:59:29,270 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 20:59:29,270 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 20:59:29,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 20:59:29,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:29,332 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:29,333 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 20:59:29,484 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:29,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:29,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301302613] [2024-11-22 20:59:29,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301302613] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 20:59:29,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 20:59:29,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-22 20:59:29,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804035100] [2024-11-22 20:59:29,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 20:59:29,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 20:59:29,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:29,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 20:59:29,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-22 20:59:29,487 INFO L87 Difference]: Start difference. First operand 730 states and 781 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 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) [2024-11-22 20:59:29,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:29,889 INFO L93 Difference]: Finished difference Result 745 states and 802 transitions. [2024-11-22 20:59:29,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 20:59:29,890 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 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 71 [2024-11-22 20:59:29,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:29,892 INFO L225 Difference]: With dead ends: 745 [2024-11-22 20:59:29,892 INFO L226 Difference]: Without dead ends: 739 [2024-11-22 20:59:29,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-22 20:59:29,895 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 14 mSDsluCounter, 4253 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4965 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:29,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4965 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 20:59:29,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-22 20:59:29,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2024-11-22 20:59:29,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 449 states have (on average 1.7037861915367483) internal successors, (765), 732 states have internal predecessors, (765), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-22 20:59:29,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 792 transitions. [2024-11-22 20:59:29,909 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 792 transitions. Word has length 71 [2024-11-22 20:59:29,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:29,910 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 792 transitions. [2024-11-22 20:59:29,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 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) [2024-11-22 20:59:29,910 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 792 transitions. [2024-11-22 20:59:29,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-22 20:59:29,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:29,914 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, 1, 1, 1] [2024-11-22 20:59:29,924 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 [2024-11-22 20:59:30,114 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 [2024-11-22 20:59:30,114 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:30,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:30,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1827542002, now seen corresponding path program 3 times [2024-11-22 20:59:30,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:30,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401524620] [2024-11-22 20:59:30,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 20:59:30,115 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 [2024-11-22 20:59:30,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:30,117 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) [2024-11-22 20:59:30,117 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 [2024-11-22 20:59:30,650 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-22 20:59:30,650 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 20:59:30,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-22 20:59:30,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:30,779 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:30,779 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 20:59:31,249 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:31,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:31,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401524620] [2024-11-22 20:59:31,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401524620] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 20:59:31,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 20:59:31,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-22 20:59:31,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638787655] [2024-11-22 20:59:31,250 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 20:59:31,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-22 20:59:31,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:31,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-22 20:59:31,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-22 20:59:31,252 INFO L87 Difference]: Start difference. First operand 739 states and 792 transitions. Second operand has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 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) [2024-11-22 20:59:32,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:32,467 INFO L93 Difference]: Finished difference Result 763 states and 831 transitions. [2024-11-22 20:59:32,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-22 20:59:32,468 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 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 77 [2024-11-22 20:59:32,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:32,470 INFO L225 Difference]: With dead ends: 763 [2024-11-22 20:59:32,471 INFO L226 Difference]: Without dead ends: 757 [2024-11-22 20:59:32,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-22 20:59:32,472 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 23 mSDsluCounter, 8507 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 9219 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:32,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 9219 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 20:59:32,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-11-22 20:59:32,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 757. [2024-11-22 20:59:32,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 467 states have (on average 1.6873661670235547) internal successors, (788), 750 states have internal predecessors, (788), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-22 20:59:32,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 815 transitions. [2024-11-22 20:59:32,484 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 815 transitions. Word has length 77 [2024-11-22 20:59:32,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:32,484 INFO L471 AbstractCegarLoop]: Abstraction has 757 states and 815 transitions. [2024-11-22 20:59:32,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 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) [2024-11-22 20:59:32,485 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 815 transitions. [2024-11-22 20:59:32,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-22 20:59:32,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:32,486 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, 1, 1, 1] [2024-11-22 20:59:32,497 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 (17)] Ended with exit code 0 [2024-11-22 20:59:32,686 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 [2024-11-22 20:59:32,687 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:32,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:32,688 INFO L85 PathProgramCache]: Analyzing trace with hash -473119794, now seen corresponding path program 4 times [2024-11-22 20:59:32,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:32,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1471875744] [2024-11-22 20:59:32,688 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 20:59:32,688 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 [2024-11-22 20:59:32,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:32,691 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) [2024-11-22 20:59:32,692 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 [2024-11-22 20:59:33,096 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 20:59:33,096 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 20:59:33,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-22 20:59:33,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:33,434 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:33,435 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 20:59:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 20:59:34,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:34,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1471875744] [2024-11-22 20:59:34,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1471875744] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 20:59:34,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 20:59:34,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-22 20:59:34,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623469694] [2024-11-22 20:59:34,540 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 20:59:34,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-22 20:59:34,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-22 20:59:34,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-22 20:59:34,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-11-22 20:59:34,543 INFO L87 Difference]: Start difference. First operand 757 states and 815 transitions. Second operand has 50 states, 50 states have (on average 2.24) internal successors, (112), 50 states have internal predecessors, (112), 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) [2024-11-22 20:59:38,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 20:59:38,727 INFO L93 Difference]: Finished difference Result 797 states and 887 transitions. [2024-11-22 20:59:38,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-22 20:59:38,728 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.24) internal successors, (112), 50 states have internal predecessors, (112), 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 89 [2024-11-22 20:59:38,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 20:59:38,731 INFO L225 Difference]: With dead ends: 797 [2024-11-22 20:59:38,731 INFO L226 Difference]: Without dead ends: 793 [2024-11-22 20:59:38,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-11-22 20:59:38,734 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 34 mSDsluCounter, 16287 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 16998 SdHoareTripleChecker+Invalid, 1950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 20:59:38,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 16998 Invalid, 1950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1911 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 20:59:38,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2024-11-22 20:59:38,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 791. [2024-11-22 20:59:38,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 501 states have (on average 1.6646706586826348) internal successors, (834), 784 states have internal predecessors, (834), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-22 20:59:38,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 861 transitions. [2024-11-22 20:59:38,748 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 861 transitions. Word has length 89 [2024-11-22 20:59:38,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 20:59:38,749 INFO L471 AbstractCegarLoop]: Abstraction has 791 states and 861 transitions. [2024-11-22 20:59:38,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.24) internal successors, (112), 50 states have internal predecessors, (112), 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) [2024-11-22 20:59:38,757 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 861 transitions. [2024-11-22 20:59:38,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-22 20:59:38,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 20:59:38,758 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, 1, 1, 1] [2024-11-22 20:59:38,771 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 [2024-11-22 20:59:38,958 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 [2024-11-22 20:59:38,959 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 422 more)] === [2024-11-22 20:59:38,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 20:59:38,960 INFO L85 PathProgramCache]: Analyzing trace with hash 666044590, now seen corresponding path program 5 times [2024-11-22 20:59:38,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-22 20:59:38,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279183304] [2024-11-22 20:59:38,960 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 20:59:38,960 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 [2024-11-22 20:59:38,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-22 20:59:38,964 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) [2024-11-22 20:59:38,965 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 [2024-11-22 20:59:40,079 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-22 20:59:40,079 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 20:59:40,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-22 20:59:40,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 20:59:40,123 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-22 20:59:40,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 22 [2024-11-22 20:59:40,429 INFO L349 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2024-11-22 20:59:40,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2024-11-22 20:59:40,485 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 [2024-11-22 20:59:40,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2024-11-22 20:59:42,906 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-22 20:59:42,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 59 [2024-11-22 20:59:43,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 27 [2024-11-22 20:59:43,067 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-22 20:59:43,068 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 20:59:43,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-22 20:59:43,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [279183304] [2024-11-22 20:59:43,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [279183304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 20:59:43,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1759080844] [2024-11-22 20:59:43,380 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 20:59:43,381 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-22 20:59:43,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-22 20:59:43,383 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-22 20:59:43,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process