./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.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 fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 16:55:12,707 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 16:55:12,755 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 16:55:12,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 16:55:12,761 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 16:55:12,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 16:55:12,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 16:55:12,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 16:55:12,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 16:55:12,777 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 16:55:12,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 16:55:12,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 16:55:12,778 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 16:55:12,779 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 16:55:12,780 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 16:55:12,780 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 16:55:12,780 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 16:55:12,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 16:55:12,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 16:55:12,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 16:55:12,781 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 16:55:12,784 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 16:55:12,784 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 16:55:12,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 16:55:12,785 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 16:55:12,785 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 16:55:12,785 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 16:55:12,785 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 16:55:12,785 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 16:55:12,786 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 16:55:12,786 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 16:55:12,786 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 16:55:12,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 16:55:12,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 16:55:12,786 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 16:55:12,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 16:55:12,787 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 16:55:12,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 16:55:12,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 16:55:12,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 16:55:12,787 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 16:55:12,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 16:55:12,788 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c [2024-11-20 16:55:12,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 16:55:13,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 16:55:13,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 16:55:13,015 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 16:55:13,015 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 16:55:13,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2024-11-20 16:55:14,255 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 16:55:14,492 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 16:55:14,493 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2024-11-20 16:55:14,517 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d99ece7/cc9a0eb0d4864f7099585a5551ec0992/FLAG22b26c81e [2024-11-20 16:55:14,531 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83d99ece7/cc9a0eb0d4864f7099585a5551ec0992 [2024-11-20 16:55:14,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 16:55:14,536 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 16:55:14,541 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 16:55:14,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 16:55:14,548 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 16:55:14,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:55:14" (1/1) ... [2024-11-20 16:55:14,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17bfd32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:14, skipping insertion in model container [2024-11-20 16:55:14,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:55:14" (1/1) ... [2024-11-20 16:55:14,599 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 16:55:14,957 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:14,987 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:14,997 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,004 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,010 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,043 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,047 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,054 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,054 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,061 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,062 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,063 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,063 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,066 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,067 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,068 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,069 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,069 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,071 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:15,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 16:55:15,087 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) [2024-11-20 16:55:15,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4e9c28a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:15, skipping insertion in model container [2024-11-20 16:55:15,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 16:55:15,093 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-20 16:55:15,094 INFO L158 Benchmark]: Toolchain (without parser) took 557.93ms. Allocated memory is still 163.6MB. Free memory was 92.6MB in the beginning and 121.9MB in the end (delta: -29.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-20 16:55:15,095 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 163.6MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 16:55:15,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.83ms. Allocated memory is still 163.6MB. Free memory was 92.4MB in the beginning and 121.9MB in the end (delta: -29.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-20 16:55:15,096 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 163.6MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 551.83ms. Allocated memory is still 163.6MB. Free memory was 92.4MB in the beginning and 121.9MB in the end (delta: -29.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 778]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.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 fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 16:55:16,767 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 16:55:16,832 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-20 16:55:16,837 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 16:55:16,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 16:55:16,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 16:55:16,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 16:55:16,860 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 16:55:16,860 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 16:55:16,861 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 16:55:16,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 16:55:16,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 16:55:16,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 16:55:16,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 16:55:16,863 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 16:55:16,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 16:55:16,864 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 16:55:16,865 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 16:55:16,865 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 16:55:16,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 16:55:16,868 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 16:55:16,868 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 16:55:16,868 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 16:55:16,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 16:55:16,869 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 16:55:16,869 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-20 16:55:16,869 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 16:55:16,869 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-20 16:55:16,869 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 16:55:16,869 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 16:55:16,869 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 16:55:16,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 16:55:16,870 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 16:55:16,870 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 16:55:16,870 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 16:55:16,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 16:55:16,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 16:55:16,870 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 16:55:16,871 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-20 16:55:16,871 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-20 16:55:16,871 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 16:55:16,872 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 16:55:16,873 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 16:55:16,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 16:55:16,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c [2024-11-20 16:55:17,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 16:55:17,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 16:55:17,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 16:55:17,180 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 16:55:17,184 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 16:55:17,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2024-11-20 16:55:18,617 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 16:55:18,915 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 16:55:18,916 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i [2024-11-20 16:55:18,932 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43de5d22e/8d3f270fe0ac47ad8efdd4a5df4d6f23/FLAGfe081ea40 [2024-11-20 16:55:18,944 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43de5d22e/8d3f270fe0ac47ad8efdd4a5df4d6f23 [2024-11-20 16:55:18,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 16:55:18,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 16:55:18,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 16:55:18,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 16:55:18,952 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 16:55:18,953 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:55:18" (1/1) ... [2024-11-20 16:55:18,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c36858a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:18, skipping insertion in model container [2024-11-20 16:55:18,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:55:18" (1/1) ... [2024-11-20 16:55:19,012 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 16:55:19,413 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,446 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,453 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,457 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,465 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,500 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,504 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,506 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,508 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,510 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,511 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,516 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,516 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,519 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,535 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,536 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,537 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,540 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,543 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 16:55:19,566 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-20 16:55:19,575 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 16:55:19,601 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,618 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,622 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,623 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,626 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,637 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,638 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,639 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,640 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,641 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,642 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,642 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,643 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,645 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,646 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,647 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,648 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,648 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,650 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:55:19,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 16:55:19,659 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 16:55:19,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 16:55:19,786 INFO L204 MainTranslator]: Completed translation [2024-11-20 16:55:19,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:19 WrapperNode [2024-11-20 16:55:19,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 16:55:19,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 16:55:19,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 16:55:19,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 16:55:19,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:19" (1/1) ... [2024-11-20 16:55:19,825 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:19" (1/1) ... [2024-11-20 16:55:19,882 INFO L138 Inliner]: procedures = 180, calls = 342, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1204 [2024-11-20 16:55:19,882 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 16:55:19,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 16:55:19,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 16:55:19,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 16:55:19,908 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:19" (1/1) ... [2024-11-20 16:55:19,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:19" (1/1) ... [2024-11-20 16:55:19,923 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:19" (1/1) ... [2024-11-20 16:55:20,009 INFO L175 MemorySlicer]: Split 304 memory accesses to 3 slices as follows [2, 34, 268]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 4, 58]. [2024-11-20 16:55:20,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:19" (1/1) ... [2024-11-20 16:55:20,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:19" (1/1) ... [2024-11-20 16:55:20,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:19" (1/1) ... [2024-11-20 16:55:20,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:19" (1/1) ... [2024-11-20 16:55:20,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:19" (1/1) ... [2024-11-20 16:55:20,086 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:19" (1/1) ... [2024-11-20 16:55:20,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 16:55:20,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 16:55:20,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 16:55:20,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 16:55:20,102 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:19" (1/1) ... [2024-11-20 16:55:20,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 16:55:20,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 16:55:20,132 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) [2024-11-20 16:55:20,139 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 [2024-11-20 16:55:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-20 16:55:20,184 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-20 16:55:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-20 16:55:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-20 16:55:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-20 16:55:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-20 16:55:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-20 16:55:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-20 16:55:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 16:55:20,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 16:55:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-20 16:55:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-20 16:55:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-20 16:55:20,186 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-20 16:55:20,186 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-20 16:55:20,186 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-20 16:55:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2024-11-20 16:55:20,186 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2024-11-20 16:55:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 16:55:20,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 16:55:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 16:55:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 16:55:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 16:55:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 16:55:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 16:55:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 16:55:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 16:55:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 16:55:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-20 16:55:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-20 16:55:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-20 16:55:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-20 16:55:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-20 16:55:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-20 16:55:20,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 16:55:20,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 16:55:20,359 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 16:55:20,361 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 16:55:20,379 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-20 16:55:20,410 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-20 16:55:20,433 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-20 16:55:23,722 INFO L? ?]: Removed 1322 outVars from TransFormulas that were not future-live. [2024-11-20 16:55:23,723 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 16:55:23,746 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 16:55:23,746 INFO L316 CfgBuilder]: Removed 71 assume(true) statements. [2024-11-20 16:55:23,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:55:23 BoogieIcfgContainer [2024-11-20 16:55:23,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 16:55:23,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 16:55:23,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 16:55:23,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 16:55:23,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:55:18" (1/3) ... [2024-11-20 16:55:23,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2573f45a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:55:23, skipping insertion in model container [2024-11-20 16:55:23,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:55:19" (2/3) ... [2024-11-20 16:55:23,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2573f45a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:55:23, skipping insertion in model container [2024-11-20 16:55:23,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:55:23" (3/3) ... [2024-11-20 16:55:23,752 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test8-2.i [2024-11-20 16:55:23,764 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 16:55:23,765 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 634 error locations. [2024-11-20 16:55:23,816 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 16:55:23,821 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;@3b7f2653, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 16:55:23,821 INFO L334 AbstractCegarLoop]: Starting to check reachability of 634 error locations. [2024-11-20 16:55:23,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 1300 states, 642 states have (on average 2.2274143302180685) internal successors, (1430), 1290 states have internal predecessors, (1430), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-20 16:55:23,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-20 16:55:23,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:23,831 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-20 16:55:23,831 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:23,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:23,835 INFO L85 PathProgramCache]: Analyzing trace with hash 158947, now seen corresponding path program 1 times [2024-11-20 16:55:23,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:23,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204463014] [2024-11-20 16:55:23,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:23,844 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 [2024-11-20 16:55:23,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:23,849 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) [2024-11-20 16:55:23,869 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 [2024-11-20 16:55:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:23,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:55:23,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:24,010 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 [2024-11-20 16:55:24,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:24,019 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:24,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:24,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204463014] [2024-11-20 16:55:24,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204463014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:24,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:24,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 16:55:24,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550250268] [2024-11-20 16:55:24,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:24,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:55:24,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:24,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:55:24,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:55:24,091 INFO L87 Difference]: Start difference. First operand has 1300 states, 642 states have (on average 2.2274143302180685) internal successors, (1430), 1290 states have internal predecessors, (1430), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-20 16:55:25,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:25,808 INFO L93 Difference]: Finished difference Result 1482 states and 1589 transitions. [2024-11-20 16:55:25,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:55:25,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-20 16:55:25,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:25,826 INFO L225 Difference]: With dead ends: 1482 [2024-11-20 16:55:25,826 INFO L226 Difference]: Without dead ends: 1480 [2024-11-20 16:55:25,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:55:25,831 INFO L432 NwaCegarLoop]: 823 mSDtfsCounter, 1153 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:25,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 1062 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 16:55:25,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2024-11-20 16:55:25,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1289. [2024-11-20 16:55:25,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 647 states have (on average 2.081916537867079) internal successors, (1347), 1278 states have internal predecessors, (1347), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-20 16:55:25,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1391 transitions. [2024-11-20 16:55:25,917 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1391 transitions. Word has length 3 [2024-11-20 16:55:25,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:25,917 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1391 transitions. [2024-11-20 16:55:25,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-20 16:55:25,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1391 transitions. [2024-11-20 16:55:25,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-20 16:55:25,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:25,918 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-20 16:55:25,925 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 [2024-11-20 16:55:26,123 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 [2024-11-20 16:55:26,124 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:26,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:26,125 INFO L85 PathProgramCache]: Analyzing trace with hash 158948, now seen corresponding path program 1 times [2024-11-20 16:55:26,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:26,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468242352] [2024-11-20 16:55:26,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:26,126 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 [2024-11-20 16:55:26,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:26,127 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) [2024-11-20 16:55:26,129 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 [2024-11-20 16:55:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:26,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 16:55:26,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:26,219 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 [2024-11-20 16:55:26,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:26,233 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:26,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:26,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468242352] [2024-11-20 16:55:26,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468242352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:26,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:26,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 16:55:26,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122196799] [2024-11-20 16:55:26,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:26,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:55:26,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:26,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:55:26,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:55:26,236 INFO L87 Difference]: Start difference. First operand 1289 states and 1391 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-20 16:55:28,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:28,649 INFO L93 Difference]: Finished difference Result 1891 states and 2036 transitions. [2024-11-20 16:55:28,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:55:28,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-20 16:55:28,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:28,655 INFO L225 Difference]: With dead ends: 1891 [2024-11-20 16:55:28,656 INFO L226 Difference]: Without dead ends: 1891 [2024-11-20 16:55:28,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:55:28,657 INFO L432 NwaCegarLoop]: 1086 mSDtfsCounter, 641 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:28,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 1842 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-20 16:55:28,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2024-11-20 16:55:28,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1501. [2024-11-20 16:55:28,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 859 states have (on average 2.067520372526193) internal successors, (1776), 1489 states have internal predecessors, (1776), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-20 16:55:28,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 1822 transitions. [2024-11-20 16:55:28,685 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 1822 transitions. Word has length 3 [2024-11-20 16:55:28,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:28,685 INFO L471 AbstractCegarLoop]: Abstraction has 1501 states and 1822 transitions. [2024-11-20 16:55:28,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-20 16:55:28,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 1822 transitions. [2024-11-20 16:55:28,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-20 16:55:28,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:28,686 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:55:28,693 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 (3)] Forceful destruction successful, exit code 0 [2024-11-20 16:55:28,886 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 [2024-11-20 16:55:28,887 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:28,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:28,887 INFO L85 PathProgramCache]: Analyzing trace with hash 765366893, now seen corresponding path program 1 times [2024-11-20 16:55:28,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:28,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809500935] [2024-11-20 16:55:28,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:28,888 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 [2024-11-20 16:55:28,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:28,891 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) [2024-11-20 16:55:28,892 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 [2024-11-20 16:55:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:29,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 16:55:29,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:29,065 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 [2024-11-20 16:55:29,079 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 [2024-11-20 16:55:29,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 16:55:29,155 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 [2024-11-20 16:55:29,184 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-20 16:55:29,185 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 [2024-11-20 16:55:29,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:29,219 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:29,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:29,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809500935] [2024-11-20 16:55:29,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809500935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:29,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:29,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:55:29,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123902613] [2024-11-20 16:55:29,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:29,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:55:29,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:29,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:55:29,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:55:29,221 INFO L87 Difference]: Start difference. First operand 1501 states and 1822 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:55:31,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:31,431 INFO L93 Difference]: Finished difference Result 1686 states and 2014 transitions. [2024-11-20 16:55:31,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:55:31,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-20 16:55:31,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:31,444 INFO L225 Difference]: With dead ends: 1686 [2024-11-20 16:55:31,445 INFO L226 Difference]: Without dead ends: 1686 [2024-11-20 16:55:31,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:55:31,448 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 2607 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2613 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:31,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2613 Valid, 664 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-20 16:55:31,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2024-11-20 16:55:31,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1277. [2024-11-20 16:55:31,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 647 states have (on average 2.061823802163833) internal successors, (1334), 1266 states have internal predecessors, (1334), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-20 16:55:31,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1378 transitions. [2024-11-20 16:55:31,508 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1378 transitions. Word has length 7 [2024-11-20 16:55:31,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:31,508 INFO L471 AbstractCegarLoop]: Abstraction has 1277 states and 1378 transitions. [2024-11-20 16:55:31,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:55:31,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1378 transitions. [2024-11-20 16:55:31,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-20 16:55:31,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:31,509 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:55:31,515 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 [2024-11-20 16:55:31,709 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 [2024-11-20 16:55:31,710 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:31,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:31,711 INFO L85 PathProgramCache]: Analyzing trace with hash -2043429998, now seen corresponding path program 1 times [2024-11-20 16:55:31,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:31,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859284328] [2024-11-20 16:55:31,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:31,712 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 [2024-11-20 16:55:31,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:31,716 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) [2024-11-20 16:55:31,719 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 [2024-11-20 16:55:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:31,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:55:31,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:31,827 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 [2024-11-20 16:55:31,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:31,834 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:31,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:31,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859284328] [2024-11-20 16:55:31,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859284328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:31,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:31,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 16:55:31,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960372718] [2024-11-20 16:55:31,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:31,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:55:31,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:31,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:55:31,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:55:31,836 INFO L87 Difference]: Start difference. First operand 1277 states and 1378 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-20 16:55:33,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:33,465 INFO L93 Difference]: Finished difference Result 1611 states and 1741 transitions. [2024-11-20 16:55:33,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:55:33,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-11-20 16:55:33,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:33,477 INFO L225 Difference]: With dead ends: 1611 [2024-11-20 16:55:33,477 INFO L226 Difference]: Without dead ends: 1611 [2024-11-20 16:55:33,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:55:33,478 INFO L432 NwaCegarLoop]: 1222 mSDtfsCounter, 938 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:33,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 1634 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 16:55:33,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2024-11-20 16:55:33,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1229. [2024-11-20 16:55:33,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 647 states have (on average 1.9860896445131375) internal successors, (1285), 1218 states have internal predecessors, (1285), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-20 16:55:33,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1329 transitions. [2024-11-20 16:55:33,520 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1329 transitions. Word has length 8 [2024-11-20 16:55:33,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:33,523 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 1329 transitions. [2024-11-20 16:55:33,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-20 16:55:33,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1329 transitions. [2024-11-20 16:55:33,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-20 16:55:33,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:33,524 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:55:33,530 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 [2024-11-20 16:55:33,724 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 [2024-11-20 16:55:33,725 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:33,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:33,726 INFO L85 PathProgramCache]: Analyzing trace with hash -2043429997, now seen corresponding path program 1 times [2024-11-20 16:55:33,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:33,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643291193] [2024-11-20 16:55:33,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:33,726 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 [2024-11-20 16:55:33,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:33,729 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) [2024-11-20 16:55:33,730 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 [2024-11-20 16:55:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:33,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 16:55:33,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:33,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-20 16:55:33,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:33,852 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:33,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:33,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643291193] [2024-11-20 16:55:33,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643291193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:33,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:33,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 16:55:33,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20489435] [2024-11-20 16:55:33,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:33,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:55:33,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:33,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:55:33,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:55:33,853 INFO L87 Difference]: Start difference. First operand 1229 states and 1329 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-20 16:55:35,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:35,805 INFO L93 Difference]: Finished difference Result 1712 states and 1848 transitions. [2024-11-20 16:55:35,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:55:35,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-11-20 16:55:35,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:35,810 INFO L225 Difference]: With dead ends: 1712 [2024-11-20 16:55:35,810 INFO L226 Difference]: Without dead ends: 1712 [2024-11-20 16:55:35,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:55:35,810 INFO L432 NwaCegarLoop]: 1423 mSDtfsCounter, 701 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 2019 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:35,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 2019 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-20 16:55:35,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2024-11-20 16:55:35,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1484. [2024-11-20 16:55:35,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 910 states have (on average 1.9714285714285715) internal successors, (1794), 1471 states have internal predecessors, (1794), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-20 16:55:35,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 1842 transitions. [2024-11-20 16:55:35,828 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 1842 transitions. Word has length 8 [2024-11-20 16:55:35,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:35,828 INFO L471 AbstractCegarLoop]: Abstraction has 1484 states and 1842 transitions. [2024-11-20 16:55:35,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-20 16:55:35,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 1842 transitions. [2024-11-20 16:55:35,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-20 16:55:35,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:35,829 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:55:35,833 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 [2024-11-20 16:55:36,029 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 [2024-11-20 16:55:36,030 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr527REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:36,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:36,030 INFO L85 PathProgramCache]: Analyzing trace with hash 98792037, now seen corresponding path program 1 times [2024-11-20 16:55:36,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:36,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310534742] [2024-11-20 16:55:36,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:36,031 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 [2024-11-20 16:55:36,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:36,032 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) [2024-11-20 16:55:36,034 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 [2024-11-20 16:55:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:36,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:55:36,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:36,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:36,231 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:36,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:36,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310534742] [2024-11-20 16:55:36,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310534742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:36,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:36,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:55:36,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839270346] [2024-11-20 16:55:36,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:36,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:55:36,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:36,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:55:36,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:55:36,233 INFO L87 Difference]: Start difference. First operand 1484 states and 1842 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) [2024-11-20 16:55:36,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:36,481 INFO L93 Difference]: Finished difference Result 2256 states and 2870 transitions. [2024-11-20 16:55:36,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:55:36,481 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 [2024-11-20 16:55:36,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:36,487 INFO L225 Difference]: With dead ends: 2256 [2024-11-20 16:55:36,488 INFO L226 Difference]: Without dead ends: 2256 [2024-11-20 16:55:36,489 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 [2024-11-20 16:55:36,490 INFO L432 NwaCegarLoop]: 1443 mSDtfsCounter, 635 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:36,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 2630 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 16:55:36,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2024-11-20 16:55:36,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 1893. [2024-11-20 16:55:36,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1893 states, 1317 states have (on average 1.9582384206529992) internal successors, (2579), 1878 states have internal predecessors, (2579), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-20 16:55:36,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2631 transitions. [2024-11-20 16:55:36,524 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2631 transitions. Word has length 11 [2024-11-20 16:55:36,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:36,527 INFO L471 AbstractCegarLoop]: Abstraction has 1893 states and 2631 transitions. [2024-11-20 16:55:36,527 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) [2024-11-20 16:55:36,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2631 transitions. [2024-11-20 16:55:36,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-20 16:55:36,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:36,528 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:55:36,533 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 [2024-11-20 16:55:36,728 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 [2024-11-20 16:55:36,729 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr334REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:36,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:36,729 INFO L85 PathProgramCache]: Analyzing trace with hash -149348106, now seen corresponding path program 1 times [2024-11-20 16:55:36,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:36,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557593036] [2024-11-20 16:55:36,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:36,730 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 [2024-11-20 16:55:36,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:36,735 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) [2024-11-20 16:55:36,741 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 [2024-11-20 16:55:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:36,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 16:55:36,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:36,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:36,850 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:36,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:36,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557593036] [2024-11-20 16:55:36,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557593036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:36,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:36,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:55:36,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466194184] [2024-11-20 16:55:36,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:36,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:55:36,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:36,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:55:36,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:55:36,852 INFO L87 Difference]: Start difference. First operand 1893 states and 2631 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:55:36,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:36,875 INFO L93 Difference]: Finished difference Result 1797 states and 2459 transitions. [2024-11-20 16:55:36,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:55:36,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-20 16:55:36,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:36,880 INFO L225 Difference]: With dead ends: 1797 [2024-11-20 16:55:36,881 INFO L226 Difference]: Without dead ends: 1797 [2024-11-20 16:55:36,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:55:36,881 INFO L432 NwaCegarLoop]: 1248 mSDtfsCounter, 71 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2433 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 [2024-11-20 16:55:36,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2433 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 16:55:36,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2024-11-20 16:55:36,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1797. [2024-11-20 16:55:36,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1797 states, 1245 states have (on average 1.9333333333333333) internal successors, (2407), 1782 states have internal predecessors, (2407), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-20 16:55:36,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2459 transitions. [2024-11-20 16:55:36,939 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2459 transitions. Word has length 13 [2024-11-20 16:55:36,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:36,939 INFO L471 AbstractCegarLoop]: Abstraction has 1797 states and 2459 transitions. [2024-11-20 16:55:36,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:55:36,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2459 transitions. [2024-11-20 16:55:36,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-20 16:55:36,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:36,940 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:55:36,944 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 (8)] Forceful destruction successful, exit code 0 [2024-11-20 16:55:37,142 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 [2024-11-20 16:55:37,143 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr632ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:37,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:37,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1068465001, now seen corresponding path program 1 times [2024-11-20 16:55:37,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:37,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544152324] [2024-11-20 16:55:37,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:37,144 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 [2024-11-20 16:55:37,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:37,145 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) [2024-11-20 16:55:37,147 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 [2024-11-20 16:55:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:37,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 16:55:37,286 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:37,292 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 16:55:37,292 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 16:55:37,293 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-20 16:55:37,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-20 16:55:37,334 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 16:55:37,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-20 16:55:37,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:37,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:37,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:37,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544152324] [2024-11-20 16:55:37,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544152324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:37,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:37,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:55:37,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961613296] [2024-11-20 16:55:37,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:37,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:55:37,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:37,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:55:37,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:55:37,348 INFO L87 Difference]: Start difference. First operand 1797 states and 2459 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-20 16:55:37,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:37,598 INFO L93 Difference]: Finished difference Result 3149 states and 4219 transitions. [2024-11-20 16:55:37,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:55:37,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-11-20 16:55:37,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:37,607 INFO L225 Difference]: With dead ends: 3149 [2024-11-20 16:55:37,607 INFO L226 Difference]: Without dead ends: 3149 [2024-11-20 16:55:37,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:55:37,607 INFO L432 NwaCegarLoop]: 1233 mSDtfsCounter, 1122 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 3689 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:37,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 3689 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 16:55:37,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2024-11-20 16:55:37,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 1796. [2024-11-20 16:55:37,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1796 states, 1244 states have (on average 1.9332797427652733) internal successors, (2405), 1781 states have internal predecessors, (2405), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-20 16:55:37,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 2457 transitions. [2024-11-20 16:55:37,635 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 2457 transitions. Word has length 14 [2024-11-20 16:55:37,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:37,635 INFO L471 AbstractCegarLoop]: Abstraction has 1796 states and 2457 transitions. [2024-11-20 16:55:37,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-20 16:55:37,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 2457 transitions. [2024-11-20 16:55:37,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-20 16:55:37,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:37,636 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:55:37,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-20 16:55:37,836 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 [2024-11-20 16:55:37,837 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:37,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:37,837 INFO L85 PathProgramCache]: Analyzing trace with hash 114814847, now seen corresponding path program 1 times [2024-11-20 16:55:37,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:37,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646709931] [2024-11-20 16:55:37,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:37,838 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 [2024-11-20 16:55:37,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:37,839 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) [2024-11-20 16:55:37,842 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 [2024-11-20 16:55:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:37,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 16:55:37,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:37,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:37,981 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:37,981 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:37,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646709931] [2024-11-20 16:55:37,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646709931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:37,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:37,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:55:37,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490870843] [2024-11-20 16:55:37,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:37,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:55:37,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:37,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:55:37,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:55:37,982 INFO L87 Difference]: Start difference. First operand 1796 states and 2457 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-20 16:55:38,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:38,008 INFO L93 Difference]: Finished difference Result 1736 states and 2371 transitions. [2024-11-20 16:55:38,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:55:38,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2024-11-20 16:55:38,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:38,012 INFO L225 Difference]: With dead ends: 1736 [2024-11-20 16:55:38,013 INFO L226 Difference]: Without dead ends: 1736 [2024-11-20 16:55:38,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:55:38,013 INFO L432 NwaCegarLoop]: 1205 mSDtfsCounter, 71 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2347 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 [2024-11-20 16:55:38,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2347 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 16:55:38,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-20 16:55:38,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1736. [2024-11-20 16:55:38,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1208 states have (on average 1.919701986754967) internal successors, (2319), 1721 states have internal predecessors, (2319), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-20 16:55:38,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2371 transitions. [2024-11-20 16:55:38,035 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2371 transitions. Word has length 18 [2024-11-20 16:55:38,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:38,036 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2371 transitions. [2024-11-20 16:55:38,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-20 16:55:38,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2371 transitions. [2024-11-20 16:55:38,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-20 16:55:38,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:38,036 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] [2024-11-20 16:55:38,041 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 [2024-11-20 16:55:38,237 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 [2024-11-20 16:55:38,237 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:38,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:38,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1332082440, now seen corresponding path program 1 times [2024-11-20 16:55:38,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:38,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512443679] [2024-11-20 16:55:38,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:38,238 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 [2024-11-20 16:55:38,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:38,241 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) [2024-11-20 16:55:38,242 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 [2024-11-20 16:55:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:38,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:55:38,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:38,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:38,393 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:38,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:38,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512443679] [2024-11-20 16:55:38,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512443679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:38,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:38,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:55:38,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032821428] [2024-11-20 16:55:38,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:38,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:55:38,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:38,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:55:38,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:55:38,394 INFO L87 Difference]: Start difference. First operand 1736 states and 2371 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-11-20 16:55:38,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:38,490 INFO L93 Difference]: Finished difference Result 1706 states and 2313 transitions. [2024-11-20 16:55:38,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 16:55:38,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2024-11-20 16:55:38,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:38,496 INFO L225 Difference]: With dead ends: 1706 [2024-11-20 16:55:38,496 INFO L226 Difference]: Without dead ends: 1706 [2024-11-20 16:55:38,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:55:38,497 INFO L432 NwaCegarLoop]: 1160 mSDtfsCounter, 48 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3454 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 [2024-11-20 16:55:38,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3454 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 16:55:38,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2024-11-20 16:55:38,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1706. [2024-11-20 16:55:38,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1192 states have (on average 1.8968120805369129) internal successors, (2261), 1691 states have internal predecessors, (2261), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-20 16:55:38,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2313 transitions. [2024-11-20 16:55:38,519 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2313 transitions. Word has length 20 [2024-11-20 16:55:38,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:38,520 INFO L471 AbstractCegarLoop]: Abstraction has 1706 states and 2313 transitions. [2024-11-20 16:55:38,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-11-20 16:55:38,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2313 transitions. [2024-11-20 16:55:38,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-20 16:55:38,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:38,521 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] [2024-11-20 16:55:38,525 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 (11)] Forceful destruction successful, exit code 0 [2024-11-20 16:55:38,721 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 [2024-11-20 16:55:38,722 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:38,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:38,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1087784634, now seen corresponding path program 1 times [2024-11-20 16:55:38,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:38,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066032740] [2024-11-20 16:55:38,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:38,724 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 [2024-11-20 16:55:38,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:38,727 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) [2024-11-20 16:55:38,731 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 [2024-11-20 16:55:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:38,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 16:55:38,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:38,888 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 [2024-11-20 16:55:38,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:38,960 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:38,960 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:38,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066032740] [2024-11-20 16:55:38,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066032740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:38,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:38,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:55:38,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613540526] [2024-11-20 16:55:38,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:38,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:55:38,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:38,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:55:38,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:55:38,962 INFO L87 Difference]: Start difference. First operand 1706 states and 2313 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-20 16:55:40,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:40,342 INFO L93 Difference]: Finished difference Result 1723 states and 2329 transitions. [2024-11-20 16:55:40,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:55:40,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2024-11-20 16:55:40,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:40,346 INFO L225 Difference]: With dead ends: 1723 [2024-11-20 16:55:40,346 INFO L226 Difference]: Without dead ends: 1723 [2024-11-20 16:55:40,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:55:40,347 INFO L432 NwaCegarLoop]: 757 mSDtfsCounter, 828 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:40,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 1540 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-20 16:55:40,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2024-11-20 16:55:40,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1702. [2024-11-20 16:55:40,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1702 states, 1192 states have (on average 1.8901006711409396) internal successors, (2253), 1687 states have internal predecessors, (2253), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-20 16:55:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2305 transitions. [2024-11-20 16:55:40,390 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2305 transitions. Word has length 34 [2024-11-20 16:55:40,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:40,391 INFO L471 AbstractCegarLoop]: Abstraction has 1702 states and 2305 transitions. [2024-11-20 16:55:40,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-20 16:55:40,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2305 transitions. [2024-11-20 16:55:40,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-20 16:55:40,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:40,391 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] [2024-11-20 16:55:40,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-20 16:55:40,592 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 [2024-11-20 16:55:40,592 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:40,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:40,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1087784633, now seen corresponding path program 1 times [2024-11-20 16:55:40,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:40,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731462330] [2024-11-20 16:55:40,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:40,593 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 [2024-11-20 16:55:40,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:40,596 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) [2024-11-20 16:55:40,596 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 [2024-11-20 16:55:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:40,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 16:55:40,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:40,739 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 [2024-11-20 16:55:40,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:40,933 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:40,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:40,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731462330] [2024-11-20 16:55:40,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731462330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:40,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:40,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:55:40,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751066272] [2024-11-20 16:55:40,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:40,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:55:40,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:40,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:55:40,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:55:40,936 INFO L87 Difference]: Start difference. First operand 1702 states and 2305 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-20 16:55:43,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:43,408 INFO L93 Difference]: Finished difference Result 1911 states and 2312 transitions. [2024-11-20 16:55:43,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:55:43,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2024-11-20 16:55:43,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:43,414 INFO L225 Difference]: With dead ends: 1911 [2024-11-20 16:55:43,414 INFO L226 Difference]: Without dead ends: 1911 [2024-11-20 16:55:43,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:55:43,415 INFO L432 NwaCegarLoop]: 1413 mSDtfsCounter, 587 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 1487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:43,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 2884 Invalid, 1487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-20 16:55:43,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2024-11-20 16:55:43,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1698. [2024-11-20 16:55:43,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 1192 states have (on average 1.8833892617449663) internal successors, (2245), 1683 states have internal predecessors, (2245), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-20 16:55:43,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 2297 transitions. [2024-11-20 16:55:43,436 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 2297 transitions. Word has length 34 [2024-11-20 16:55:43,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:43,436 INFO L471 AbstractCegarLoop]: Abstraction has 1698 states and 2297 transitions. [2024-11-20 16:55:43,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-20 16:55:43,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 2297 transitions. [2024-11-20 16:55:43,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-20 16:55:43,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:43,438 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:55:43,446 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 [2024-11-20 16:55:43,638 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 [2024-11-20 16:55:43,638 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:43,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:43,639 INFO L85 PathProgramCache]: Analyzing trace with hash 477063392, now seen corresponding path program 1 times [2024-11-20 16:55:43,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:43,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341404730] [2024-11-20 16:55:43,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:43,639 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 [2024-11-20 16:55:43,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:43,641 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) [2024-11-20 16:55:43,643 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 [2024-11-20 16:55:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:43,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:55:43,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:43,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:43,868 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:43,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:43,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341404730] [2024-11-20 16:55:43,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341404730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:43,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:43,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:55:43,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372578763] [2024-11-20 16:55:43,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:43,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:55:43,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:43,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:55:43,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:55:43,870 INFO L87 Difference]: Start difference. First operand 1698 states and 2297 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:55:43,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:43,930 INFO L93 Difference]: Finished difference Result 1686 states and 2277 transitions. [2024-11-20 16:55:43,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 16:55:43,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-20 16:55:43,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:43,943 INFO L225 Difference]: With dead ends: 1686 [2024-11-20 16:55:43,943 INFO L226 Difference]: Without dead ends: 1686 [2024-11-20 16:55:43,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:55:43,944 INFO L432 NwaCegarLoop]: 1154 mSDtfsCounter, 21 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3431 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 [2024-11-20 16:55:43,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3431 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 16:55:43,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2024-11-20 16:55:43,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1686. [2024-11-20 16:55:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1180 states have (on average 1.8855932203389831) internal successors, (2225), 1671 states have internal predecessors, (2225), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-20 16:55:43,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2277 transitions. [2024-11-20 16:55:43,966 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2277 transitions. Word has length 53 [2024-11-20 16:55:43,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:43,968 INFO L471 AbstractCegarLoop]: Abstraction has 1686 states and 2277 transitions. [2024-11-20 16:55:43,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:55:43,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2277 transitions. [2024-11-20 16:55:43,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 16:55:43,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:43,971 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] [2024-11-20 16:55:43,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-20 16:55:44,175 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 [2024-11-20 16:55:44,177 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:44,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:44,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1964348524, now seen corresponding path program 1 times [2024-11-20 16:55:44,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:44,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948060197] [2024-11-20 16:55:44,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:44,178 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 [2024-11-20 16:55:44,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:44,182 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) [2024-11-20 16:55:44,183 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 [2024-11-20 16:55:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:44,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 16:55:44,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:44,519 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 [2024-11-20 16:55:44,526 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 [2024-11-20 16:55:44,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 16:55:44,942 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 [2024-11-20 16:55:44,979 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-20 16:55:44,980 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 [2024-11-20 16:55:44,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:44,992 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:44,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:44,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948060197] [2024-11-20 16:55:44,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948060197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:44,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:44,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:55:44,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717166555] [2024-11-20 16:55:44,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:44,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:55:44,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:44,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:55:44,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:55:44,994 INFO L87 Difference]: Start difference. First operand 1686 states and 2277 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-20 16:55:46,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:46,596 INFO L93 Difference]: Finished difference Result 1659 states and 2251 transitions. [2024-11-20 16:55:46,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:55:46,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2024-11-20 16:55:46,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:46,600 INFO L225 Difference]: With dead ends: 1659 [2024-11-20 16:55:46,601 INFO L226 Difference]: Without dead ends: 1659 [2024-11-20 16:55:46,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:55:46,601 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 772 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:46,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 904 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 16:55:46,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2024-11-20 16:55:46,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1257. [2024-11-20 16:55:46,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 794 states have (on average 1.8035264483627205) internal successors, (1432), 1245 states have internal predecessors, (1432), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-20 16:55:46,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1478 transitions. [2024-11-20 16:55:46,616 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1478 transitions. Word has length 61 [2024-11-20 16:55:46,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:46,616 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1478 transitions. [2024-11-20 16:55:46,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-20 16:55:46,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1478 transitions. [2024-11-20 16:55:46,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-20 16:55:46,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:46,617 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] [2024-11-20 16:55:46,624 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 [2024-11-20 16:55:46,817 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 [2024-11-20 16:55:46,818 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:46,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:46,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1594198879, now seen corresponding path program 1 times [2024-11-20 16:55:46,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:46,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570738130] [2024-11-20 16:55:46,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:46,818 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 [2024-11-20 16:55:46,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:46,820 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) [2024-11-20 16:55:46,821 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 [2024-11-20 16:55:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:47,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 16:55:47,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:47,050 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 [2024-11-20 16:55:47,065 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 [2024-11-20 16:55:47,086 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 [2024-11-20 16:55:47,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:47,093 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:47,094 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:47,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570738130] [2024-11-20 16:55:47,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570738130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:47,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:47,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:55:47,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525989461] [2024-11-20 16:55:47,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:47,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 16:55:47,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:47,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 16:55:47,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:55:47,095 INFO L87 Difference]: Start difference. First operand 1257 states and 1478 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-20 16:55:48,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:48,919 INFO L93 Difference]: Finished difference Result 1256 states and 1477 transitions. [2024-11-20 16:55:48,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 16:55:48,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2024-11-20 16:55:48,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:48,922 INFO L225 Difference]: With dead ends: 1256 [2024-11-20 16:55:48,922 INFO L226 Difference]: Without dead ends: 1256 [2024-11-20 16:55:48,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 16:55:48,923 INFO L432 NwaCegarLoop]: 1125 mSDtfsCounter, 2 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:48,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2983 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-20 16:55:48,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2024-11-20 16:55:48,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1256. [2024-11-20 16:55:48,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 794 states have (on average 1.8022670025188916) internal successors, (1431), 1244 states have internal predecessors, (1431), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-20 16:55:48,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1477 transitions. [2024-11-20 16:55:48,933 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1477 transitions. Word has length 66 [2024-11-20 16:55:48,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:48,934 INFO L471 AbstractCegarLoop]: Abstraction has 1256 states and 1477 transitions. [2024-11-20 16:55:48,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-20 16:55:48,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1477 transitions. [2024-11-20 16:55:48,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-20 16:55:48,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:48,934 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] [2024-11-20 16:55:48,946 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 (16)] Forceful destruction successful, exit code 0 [2024-11-20 16:55:49,135 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 [2024-11-20 16:55:49,135 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:49,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:49,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1594198880, now seen corresponding path program 1 times [2024-11-20 16:55:49,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:49,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840830150] [2024-11-20 16:55:49,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:49,136 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 [2024-11-20 16:55:49,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:49,138 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) [2024-11-20 16:55:49,139 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 [2024-11-20 16:55:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:49,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 16:55:49,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:49,543 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 [2024-11-20 16:55:49,564 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 [2024-11-20 16:55:49,580 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 [2024-11-20 16:55:49,636 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 [2024-11-20 16:55:49,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:49,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:49,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:49,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840830150] [2024-11-20 16:55:49,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840830150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:49,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:49,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:55:49,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471838482] [2024-11-20 16:55:49,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:49,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 16:55:49,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:49,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 16:55:49,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:55:49,658 INFO L87 Difference]: Start difference. First operand 1256 states and 1477 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-20 16:55:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:51,581 INFO L93 Difference]: Finished difference Result 1255 states and 1476 transitions. [2024-11-20 16:55:51,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 16:55:51,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2024-11-20 16:55:51,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:51,583 INFO L225 Difference]: With dead ends: 1255 [2024-11-20 16:55:51,584 INFO L226 Difference]: Without dead ends: 1255 [2024-11-20 16:55:51,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 16:55:51,584 INFO L432 NwaCegarLoop]: 1125 mSDtfsCounter, 1 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:51,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3039 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-20 16:55:51,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-11-20 16:55:51,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2024-11-20 16:55:51,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 793 states have (on average 1.8032786885245902) internal successors, (1430), 1243 states have internal predecessors, (1430), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-20 16:55:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1476 transitions. [2024-11-20 16:55:51,620 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1476 transitions. Word has length 66 [2024-11-20 16:55:51,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:51,620 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1476 transitions. [2024-11-20 16:55:51,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-20 16:55:51,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1476 transitions. [2024-11-20 16:55:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-20 16:55:51,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:51,621 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, 1, 1, 1, 1, 1, 1] [2024-11-20 16:55:51,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2024-11-20 16:55:51,825 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 [2024-11-20 16:55:51,826 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:51,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:51,827 INFO L85 PathProgramCache]: Analyzing trace with hash -572666778, now seen corresponding path program 1 times [2024-11-20 16:55:51,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:51,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017285494] [2024-11-20 16:55:51,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:51,827 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:55:51,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:51,830 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) [2024-11-20 16:55:51,831 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 [2024-11-20 16:55:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:52,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:55:52,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:52,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:52,108 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:55:52,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:52,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017285494] [2024-11-20 16:55:52,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017285494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:55:52,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:55:52,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:55:52,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21540938] [2024-11-20 16:55:52,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:55:52,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:55:52,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:52,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:55:52,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:55:52,111 INFO L87 Difference]: Start difference. First operand 1255 states and 1476 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-11-20 16:55:52,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:52,160 INFO L93 Difference]: Finished difference Result 1258 states and 1480 transitions. [2024-11-20 16:55:52,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:55:52,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 74 [2024-11-20 16:55:52,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:52,165 INFO L225 Difference]: With dead ends: 1258 [2024-11-20 16:55:52,167 INFO L226 Difference]: Without dead ends: 1258 [2024-11-20 16:55:52,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:55:52,168 INFO L432 NwaCegarLoop]: 1125 mSDtfsCounter, 0 mSDsluCounter, 2245 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3370 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 [2024-11-20 16:55:52,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3370 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 16:55:52,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2024-11-20 16:55:52,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1258. [2024-11-20 16:55:52,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 795 states have (on average 1.8025157232704403) internal successors, (1433), 1246 states have internal predecessors, (1433), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-20 16:55:52,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 1480 transitions. [2024-11-20 16:55:52,196 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 1480 transitions. Word has length 74 [2024-11-20 16:55:52,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:52,196 INFO L471 AbstractCegarLoop]: Abstraction has 1258 states and 1480 transitions. [2024-11-20 16:55:52,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2024-11-20 16:55:52,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 1480 transitions. [2024-11-20 16:55:52,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-20 16:55:52,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:52,197 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:55:52,213 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 [2024-11-20 16:55:52,405 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 [2024-11-20 16:55:52,406 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:52,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:52,406 INFO L85 PathProgramCache]: Analyzing trace with hash 61894504, now seen corresponding path program 1 times [2024-11-20 16:55:52,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:52,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317015084] [2024-11-20 16:55:52,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:55:52,407 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 [2024-11-20 16:55:52,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:52,410 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) [2024-11-20 16:55:52,411 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 [2024-11-20 16:55:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:55:52,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 16:55:52,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:52,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:52,678 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 16:55:52,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:52,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:52,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317015084] [2024-11-20 16:55:52,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1317015084] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 16:55:52,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 16:55:52,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-20 16:55:52,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935976053] [2024-11-20 16:55:52,740 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 16:55:52,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 16:55:52,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:52,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 16:55:52,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 16:55:52,741 INFO L87 Difference]: Start difference. First operand 1258 states and 1480 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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) [2024-11-20 16:55:52,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:52,842 INFO L93 Difference]: Finished difference Result 1270 states and 1497 transitions. [2024-11-20 16:55:52,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 16:55:52,843 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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 75 [2024-11-20 16:55:52,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:52,845 INFO L225 Difference]: With dead ends: 1270 [2024-11-20 16:55:52,845 INFO L226 Difference]: Without dead ends: 1270 [2024-11-20 16:55:52,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-20 16:55:52,846 INFO L432 NwaCegarLoop]: 1125 mSDtfsCounter, 8 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3372 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:52,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3372 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 16:55:52,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2024-11-20 16:55:52,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1268. [2024-11-20 16:55:52,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 804 states have (on average 1.800995024875622) internal successors, (1448), 1255 states have internal predecessors, (1448), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-20 16:55:52,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1495 transitions. [2024-11-20 16:55:52,860 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1495 transitions. Word has length 75 [2024-11-20 16:55:52,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:52,860 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1495 transitions. [2024-11-20 16:55:52,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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) [2024-11-20 16:55:52,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1495 transitions. [2024-11-20 16:55:52,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-20 16:55:52,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:52,861 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:55:52,871 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-20 16:55:53,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:55:53,062 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:53,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:53,062 INFO L85 PathProgramCache]: Analyzing trace with hash 250576102, now seen corresponding path program 2 times [2024-11-20 16:55:53,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:53,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371865124] [2024-11-20 16:55:53,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 16:55:53,063 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 [2024-11-20 16:55:53,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:53,065 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:55:53,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-20 16:55:53,505 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 16:55:53,505 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 16:55:53,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 16:55:53,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:53,555 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:53,555 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 16:55:53,688 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:53,689 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:53,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371865124] [2024-11-20 16:55:53,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371865124] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 16:55:53,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 16:55:53,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-20 16:55:53,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259927392] [2024-11-20 16:55:53,689 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 16:55:53,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 16:55:53,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:53,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 16:55:53,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-20 16:55:53,690 INFO L87 Difference]: Start difference. First operand 1268 states and 1495 transitions. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 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) [2024-11-20 16:55:54,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:54,011 INFO L93 Difference]: Finished difference Result 1283 states and 1517 transitions. [2024-11-20 16:55:54,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 16:55:54,011 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 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 78 [2024-11-20 16:55:54,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:54,013 INFO L225 Difference]: With dead ends: 1283 [2024-11-20 16:55:54,013 INFO L226 Difference]: Without dead ends: 1279 [2024-11-20 16:55:54,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-20 16:55:54,014 INFO L432 NwaCegarLoop]: 1125 mSDtfsCounter, 14 mSDsluCounter, 6734 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 7859 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:54,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 7859 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 16:55:54,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2024-11-20 16:55:54,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1277. [2024-11-20 16:55:54,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 813 states have (on average 1.795817958179582) internal successors, (1460), 1264 states have internal predecessors, (1460), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-20 16:55:54,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1507 transitions. [2024-11-20 16:55:54,036 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1507 transitions. Word has length 78 [2024-11-20 16:55:54,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:54,036 INFO L471 AbstractCegarLoop]: Abstraction has 1277 states and 1507 transitions. [2024-11-20 16:55:54,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 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) [2024-11-20 16:55:54,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1507 transitions. [2024-11-20 16:55:54,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-20 16:55:54,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:54,038 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:55:54,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-20 16:55:54,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:55:54,238 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:54,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:54,239 INFO L85 PathProgramCache]: Analyzing trace with hash -406516314, now seen corresponding path program 3 times [2024-11-20 16:55:54,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:54,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586743304] [2024-11-20 16:55:54,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 16:55:54,239 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 [2024-11-20 16:55:54,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:54,242 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:55:54,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-20 16:55:54,922 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-20 16:55:54,922 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 16:55:54,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-20 16:55:54,940 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:55,048 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:55,048 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 16:55:55,502 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:55,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:55,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586743304] [2024-11-20 16:55:55,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [586743304] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 16:55:55,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 16:55:55,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-20 16:55:55,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159742397] [2024-11-20 16:55:55,503 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 16:55:55,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-20 16:55:55,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:55,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-20 16:55:55,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-20 16:55:55,504 INFO L87 Difference]: Start difference. First operand 1277 states and 1507 transitions. Second operand has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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) [2024-11-20 16:55:56,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:55:56,785 INFO L93 Difference]: Finished difference Result 1301 states and 1546 transitions. [2024-11-20 16:55:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-20 16:55:56,786 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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 84 [2024-11-20 16:55:56,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:55:56,788 INFO L225 Difference]: With dead ends: 1301 [2024-11-20 16:55:56,788 INFO L226 Difference]: Without dead ends: 1295 [2024-11-20 16:55:56,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-20 16:55:56,791 INFO L432 NwaCegarLoop]: 1126 mSDtfsCounter, 18 mSDsluCounter, 14594 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 15720 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 16:55:56,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 15720 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 16:55:56,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2024-11-20 16:55:56,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1295. [2024-11-20 16:55:56,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 831 states have (on average 1.7845968712394704) internal successors, (1483), 1282 states have internal predecessors, (1483), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-20 16:55:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1530 transitions. [2024-11-20 16:55:56,804 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1530 transitions. Word has length 84 [2024-11-20 16:55:56,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:55:56,805 INFO L471 AbstractCegarLoop]: Abstraction has 1295 states and 1530 transitions. [2024-11-20 16:55:56,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 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) [2024-11-20 16:55:56,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1530 transitions. [2024-11-20 16:55:56,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-20 16:55:56,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:55:56,805 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:55:56,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-20 16:55:57,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:55:57,024 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:55:57,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:55:57,025 INFO L85 PathProgramCache]: Analyzing trace with hash 303922982, now seen corresponding path program 4 times [2024-11-20 16:55:57,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:55:57,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686719385] [2024-11-20 16:55:57,025 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-20 16:55:57,026 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 [2024-11-20 16:55:57,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:55:57,027 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:55:57,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-20 16:55:57,442 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-20 16:55:57,442 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 16:55:57,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-20 16:55:57,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:55:57,773 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:57,773 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 16:55:58,850 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:55:58,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:55:58,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686719385] [2024-11-20 16:55:58,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686719385] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 16:55:58,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 16:55:58,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-20 16:55:58,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137192368] [2024-11-20 16:55:58,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 16:55:58,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-20 16:55:58,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:55:58,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-20 16:55:58,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-11-20 16:55:58,854 INFO L87 Difference]: Start difference. First operand 1295 states and 1530 transitions. Second operand has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 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) [2024-11-20 16:56:03,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:56:03,126 INFO L93 Difference]: Finished difference Result 1335 states and 1602 transitions. [2024-11-20 16:56:03,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-20 16:56:03,127 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 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 96 [2024-11-20 16:56:03,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:56:03,129 INFO L225 Difference]: With dead ends: 1335 [2024-11-20 16:56:03,129 INFO L226 Difference]: Without dead ends: 1331 [2024-11-20 16:56:03,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-11-20 16:56:03,131 INFO L432 NwaCegarLoop]: 1125 mSDtfsCounter, 28 mSDsluCounter, 25809 mSDsCounter, 0 mSdLazyCounter, 1926 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 26934 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-20 16:56:03,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 26934 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1926 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-20 16:56:03,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2024-11-20 16:56:03,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1329. [2024-11-20 16:56:03,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1329 states, 865 states have (on average 1.7676300578034683) internal successors, (1529), 1316 states have internal predecessors, (1529), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (23), 8 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-20 16:56:03,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 1576 transitions. [2024-11-20 16:56:03,143 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 1576 transitions. Word has length 96 [2024-11-20 16:56:03,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:56:03,143 INFO L471 AbstractCegarLoop]: Abstraction has 1329 states and 1576 transitions. [2024-11-20 16:56:03,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 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) [2024-11-20 16:56:03,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 1576 transitions. [2024-11-20 16:56:03,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-20 16:56:03,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:56:03,144 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:56:03,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-11-20 16:56:03,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:56:03,347 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2024-11-20 16:56:03,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:56:03,348 INFO L85 PathProgramCache]: Analyzing trace with hash 517906918, now seen corresponding path program 5 times [2024-11-20 16:56:03,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:56:03,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367934746] [2024-11-20 16:56:03,348 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-20 16:56:03,349 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 [2024-11-20 16:56:03,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:56:03,350 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:56:03,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-20 16:56:04,480 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-20 16:56:04,480 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 16:56:04,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-20 16:56:04,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:56:04,521 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 [2024-11-20 16:56:04,679 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-20 16:56:04,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-20 16:56:04,711 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 [2024-11-20 16:56:04,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-20 16:56:05,694 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-20 16:56:05,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-20 16:56:05,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-20 16:56:05,750 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-20 16:56:05,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 16:56:06,066 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:56:06,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367934746] [2024-11-20 16:56:06,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367934746] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 16:56:06,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1466601937] [2024-11-20 16:56:06,067 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-20 16:56:06,067 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-20 16:56:06,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-20 16:56:06,069 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-20 16:56:06,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process